OPERATING LOCATION - A DTIC. USAFETAC JUL 0 Air Weather Service (MAC) REVISED UNIFORM SUMMARY OF j SURFACE WEATHER OBSERVATIONS

Transcription

1 .I./ TV ICAL LIMIARY ' I.L :A P11',A~ IL (4_c? CDH Co OPERATING LOCATION - A DTIC SELEC" -r7 JUL 0 Air Weather Service (MAC) REVISED UNIFORM SUMMARY OF j SURFACE WEATHER OBSERVATIONS 1.LArTSBURGH AFB NY MSCII N W ELEV 235 FT KPBG' PARTS A - F HOURS SUMMARIZED LST PERIOD OF RECORD: HOURLY OBSERVATIONS: JAN 78 - DEC 87 th_ ou SUl ARY OF DAY DATA: JAN 56 - DEC 87 "Approved for public release; 27 MAY 1988 Distribut.ion Unlimited" FEDERAL BUILDING ASHEVILLE, N.C o 0 )

2 REPORT DOCUMENTATION PACE la. Report Security Classification: UNCLASSIFIED 3. Distribution/Availability of Report: Approved for public release; Distribution unlimited. 4. Performing Organization Report Number: /DS-88/ Monitoring Organization Report Number: /DS-88/023. 6a. Name of Performing Organization: /OL-A 6b. Office Symbol: 6c. Address: Federal Building, Asheville, NC Title: (RUSSWO) PLATTSBURGH AFB NY. 12 Personal Author(s): 13a Type of Report: Data Summary 13b Time Covered: Jan 56-Dec Date of Report: May Page Count: COSATI Codes: Field--04, Group Subject Terms: *climatology; *weather; meteorological conditions; winds; precipitation; temperature; visibility; barometric pressure; relative humiditv; sky cover; psychrometric data; ceiling; Revised Unitorm Summary of Surface Weather Observations (RUSSWO); Plattsburgh AFB NY; New York; USNY Abstract: A six-part statistical data summary of surface weather observations for: Plattsburgh AFB NY. Summary consists of: PART A, Weather Conditions and Atmospheric Phenomena; PART B, Precipitation; PART C, Surface Winds; PART D, Ceiling and Visibility; PART E, Psychrometric Summaries; PART F, Pressure Summaries. See /TN- 83/001 (ADA132186), An Aid for Using the Revised Uniform Summary of Surface Weather Observations (RUSSWO) for complete description of contents and instructions for use. 20 Distribution/Availability of Abstract: Same as report. 21 Abstract Security Classification: UNCLASSIFIED. 22a lname of Responsible Individual: Marianne L. Cavanau.h 22b Telephone: (618) c Office Symbol: /LDD DD FORM 1473UNCLASSIFIED

3 REVIEW AND APPROVAL STATEMENT /DS-88/023 (RUSSWO) Plattsburgh AFB NY May 1988 is approved for public release. There is no objection to unlimited distribution of this document to the public at large, or by the Defense Technical Information Center (DTIC) to the National Technical Information Service (NTIS). This document has been reviewed and is approved for publication. FOR THE COMMANDER /2 WALTER S. BURGMANN Scientific and Technical Information Program Manager Ak- *AK_

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5 LL-AIUSAFrTAC/MAL/AWS ASHEVILLE!JC 2813-I rfvis[n UNIIrORM SUMMARY uf SURFACt WEATHER OBSERVATIONS IFOUCLY Ob!LRVATIONS: ALL RECcRr OR RECOFr SPECIAL O.SERPATIUNS recorded ON THE AWS FORMS IDIIOA Al SCHEDULED HOURLY INTERVALS. SUMMARY OF DAY DATA (DAILY OeSEVATIGNS: DATA COMPILED FROM ALL AVAILABLE OPSERVATIONS WHICH INCLUCES HOURLY OPSERVATIONS ANO DAILY DATA kfcoroeu IN COLUMNS 66-T, AWS FORMS ID/SOB. LESCRIPTION OF SLMMARIES: PRECEDING EACH PART OF THIL RUSSwO IS A BRIEF DISCUSSION OF ItME SUMMARY INCLULING THE MANNEr OF PRESLNTATICN. STANDARD '-iour TIME GROUPS: IN ALL SbMMARIES SHOWING DIURNAL VARIAIIONS, WE SU 'APIZE DATA USING THE FOLLOWING EIGHI 3-HOUR TIME PERIODS IN LOCAL STANDARD lime: 0DDO-O20. '070-nS RO-D, 090L-l100, I700-IO0, ISCU-1700, IeOfJZUOG, C IST. kor A OETAILEU tescriptiln OF EACH SUMmARY WITH EXAMPLES AND EXERCISES ON ITS USAGE, SEE USAF(TAC/TN-A3-COI AID FOR USING THE REVISrn UNIFORM SUMMARY OF SURFACE WEATHER CBSERVATIONS" (RUSSWO). "AN lable OF CONTENTS: STATION HISTORY PART A: WEATHE CONDITIONS AND ATMOSPHERIC PHENOMENA SUM4AIES PART 8: PART C: PRECIPITATION. SNOWFALL, AND SNOW DEPTH SUMMAPTE SURFACE WIND SUMMARIES PART 0: CEILING VERSUS VTSIBILII AND SKY COVER SUMMARIES PART r: PART F: TEMPERATURE AND RELATIVE HU1MIDITY SUMMARIES PRESSURE SUMMARIES Y4SYSC NUMBER: THIS NUME[R IS THE AIR WEATHER SERVICE MASTER STATION CATALOG N'IMREQ. THIS NUMNER IS COlPrI'ED OF THE WHO NUMBER WITH THE ADDITION CF A SUFFIX 10 THROUGH 01. IN CAtES WHERF THFRE is NO DESIGNATED WMO NUMBER, A S-DIGIT NUMFk IS CREATEn IN AGREEMCNT WIT- WhO PULES PLUS A SIXTH DIGIT. THESE NUMPEPS ArE ALSC REFER&EO IC- -- AS UATSAV OR NUMBERS WHICH UNIQUELY IDEFITIFY MOVE THAN 1bCC REPORIlNG STATIONS WORLD WIlL. -- L-

6 LATITUDI( LONGTUDOE IELO [LEV (FT) CALL S(GN R Plattsburgh AFR New York N W PBr STATION LOCATION AND INSTRUMENTATION HISTORY NUMBER TYPE AT THIS LOCATION ELEVATION ABOVE NSL BUS Of CEOCfAPHICAL LOCATION i NAME OF LATITUDE LONGITUDE PCR LOCATIO STATION FROiM TO FIELD (T) T ARO DAI 1 Plattsburgh AFB New York AFB Mar 56 Dec 70 N W Same Same Jan 71 Feb 78 Same W Same 24 3 Same Same Mar 78 Dec 82 Same Same Same Same 24 4 Same Same Jan 83 Dec 83 Same Same S Sa]e 24 5 Same Same Jan 84 Dec 87 Same Same Same Same 24 NUMBER OF DATE SURFACE WIND EOUIPNEIT INFOINATION TYPE oremarks, LOCATION CHANCE LOCATION TRANSMIITTER TYP Of E NETOPEER HNOAD REfCORER[ C ROUND 1 Mar 56 Located about 150 ft SW of Observers room in base ops bldg. AN/GMQ-I N/A 13 ft 2 Mar 57 Located 3/8 of a mile WSW of the weather station. AN/GMQ-I RO-2 Same 3 Mar 59 Located 1/2 of a mile WNW of the weather station. Same Same Same 4 Mar 60 Located 3/8 of a mile WNW of the weather station. Same Same Same 5 Aug 61 Same Same Same 21 ft 6 Mar Located 1S miles NW of the weather station. AN/GMQ-l Ro-2 13 ft 2. Located 3/4 mile SW of the AN/GMQ-l Same weather station. ADDITIONAL EQUIPMENT, OR REASON FOR CHANCE o 0-19 (OL A) ppfvtous (SITIONS Of TUIS FORM ARE ORSOLFTF. CONTINUED NEVERSE SIDE am&,--., h.% , -- -AN ~ - - -

7 NUISEN DATE SURFACE WINO EQUIPOENT INFORNATION OF OF TYPE OF TYPE OF H ABOVE RENARKS. ADDITIO8AL EOUIPIENT. OR REASON FOR CHANCE TiN COANCE LOCATION TRANSNITTED RECORDER CROUND 7 Mar Same AN/GMQ-l] RO-362 Same 2. Same Same Same 8 Oct Located 300 ft E of centerline AN/GMQ-2( Same Same of rnwy Located 750 ft E of centerline Same Same of rnwy Feb same Same Same Same 2. Same Same Same 10 Dec Same Same Same Same 2. Same Same Same 11 Dec Sae Sam Same Sa, 2. Same Same Sam 12 Dec Same Same Same Same 2. Same Same Same _...

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9 WE ATHER CONDJI 1 NS AND A TMOSPHE RIC PHE NOMENA SUMMA I E S.1AER CONDITTIONS SUMMARY: 1. A PERCENTAGE FREQUFNCY OCCURRENCE SUMMARY Of V&PIOUS ATMOSPHERIC pmcrwu'e,:s AMC OBSTRUCtION.S TO VISION. 2. OTAA BAsED ON HOURLY URSENVATIORS. I. su'thapiz7d by THE STANnAPO 3-HOUR TIMlE GROUPS BlY MONTH, MONYR4LY AfND ANNUALLY ILL YEARS COMATNIDI. ATMOSP1HFRIC PHENOMENA SIUMMARY: A. A PERCENTAGE FREQUFEY OF DAYS SUMMARY OF VAPIOUS RT.*OSPHERIC "S.FNOMFNA AN() OBIPUCrIO'Js To VIiTOTJ. 2. D)ATA BASED ON SUMMARY OF LIRY DATA. C 3. SUMMARIZED BY MONTH WITH ALL HOURS PNO ALL YEARS C0MPINED. c LEE TN IT ONS: THUNDERSYORMS.- LL REPORTED THUNOERSTORMS. YORNALOBES AN) WATERSPOU)TS. f4atin AND/OR DRIZZLE: ALL REPOPYDO RAIN AND DR DRI'ZLE FALLINf, TO 'HE GROUND PUT NOT FREEZING. FFE,-ING RAIN ANDI/Ok FrEEZINb DRIZZLE (GLAZE$: ALL RLPORT'u FREI7/NG RAIN OR FPFEZ ING DRIZZLE. SNC. AND/OR SLEEY. SN06 INCLUOTNC SNOW PELLETS AND GRAINS. ICE CRYSTALS AND PrELETS 'SLELTI. HAIL: ALL REPORTED HAIL. ALL TRECIPI IATTOI: TV41S CAIEtDORY 1NCLITOES ALL "SRSENAT IONS REPORT 7NG PPFCI PTT]TCi PAICAUSE MORE THAN ON[E TPL OF PrECIPITAYTON MAY APPEAR IN N S1TILLE OT.sERVATIUTJ, THE SUM "F TMC PrPrENYY'IES IN THE 1INTIVItUAL ('ILUMNAS MAT EXCEED THE PE TCETITArES IN IMTS CULIUMN. F Or: ALL AEPO-YCO FO-G. TCE FuG AND1 GkOuU FO6. SMORE AND/OR HAZE: ALL REPORTED) VICIFE, HAZE AND ANY COMRINATION TH[PEOF. BLC-11-IG ShTh: ALL lqepneted GLOwING, SNjOw INCLJ!)IN [,PIRTTNfj WI-EN I-rIpTfTE. OUST AND/OX SAND: ALL kfporylo OUST. SONS. ELOATNC, DUST. 'ILOWING NINttr tn, A'!Y CDNT'INATIDN THEREOF. THE ATMOSPHERIC PPENO"LNA SUMPYSPY ("AVG.TTI INCtLj"ES ONLY THOSE REPEATS WHEN, THE PHENOMEN.A AISItlILITY LESS TPA% S/F MILE! I" METEP5I. ALL 03STRUCTIONS YO VISION: INCLUDES fll IErGrT OF OPTlYRILTIPN' TO VISION (FCC THRU [list/sandi ANDO EICRANG SPRAY. BCAU!.L POPE TITA N ONE I-HE NUMCNA PrR 0LpSF9AYIn'N MAY OCCUR * THE SUMl- OF THE INDTIIDUAL COLLMTIS MAY CYCED TJHI! COLLMN fkbu b..&ddka

10 NOTES: 1. A VALUE IN OHE TABLES OF ".Z;" INDICATES LESS THAN *P5T UCCULRP[NCE (USUALLY ONLY Of OCCUOPACE ). 2. LTAR SIATIONS IBECINNING IN JAN 1960) AND SYNOPTIC PEPORTTNG STATIONS RECE ROP ON THE AWS FORMS 10/104 AND TRANSMTITED LONGLINE ONLY THE HIGHFST OnE OF ATMOSPHERIC PHE(NOMENA OFTERVE. LEGINNING IN JAN 197j, MLTAP ST1TIONS PECOROFr ALL OESLEPVED PHENOMENA SLIT CONINUED TO TRANSMIT ONLY )HE HIGHEST ORDER. FOR fxarple IIF THE OSERVATION LONINND RAIN, FO G AND S UKt, ALL THREE WILL APPEAT ON THE AWs FORMS 10/IDA, BUT ONLY THE RAIN WAS TANSITTEJ LONGLINE. THFOfPfE ONLY THE RAIN APPEARS IN OUR OATA BASE FOR HOURLY S 0 MRARIZATION. WHIS PRACTICE FFECTS THE PFRrLNTAQ[S IN THE TA*LES. nb -AIR

11 GLCBAL CLIMATOLOGY BRANCH Al WEATHER SERVICE/MAC PERCENTAGE FREQUENCY of OCCURRENCE OF WEATHER CONOITIONS STATION NUMPER: STATION NAME: PLAT1SBU GH AFR NY PEQIOD OF RECORD: MONTH: JAN I RAIN FAZIN SNOW % OBS SMOKE GUST I DeS HOURS I TSIMS L/OR RAIN C/OR HAIL WITH FOG C/OR BLCWING C/OR W/CBST TOTAL TIST) I CRIZZLE C/OR SLEET PRECIP HAZE SNOW SAND TO GBS DRIZZLE VI ION e u C3-OS b C U I I C L I 4.b s ? T TOTALS I ,S q STATION NUMBER: STATICA NAME: PLATISBURGH AFR NY PERIOG OF PECORD: MONTH: FEB IRAIN FAZING SNOW I OR! SMOKE OUST % Des HOURS I TSTHS C/OR RAIN C/Or HAIL WITH FOG C/OR BLOWING C/OR W/ 1 BSI TCTAL (LSTI I CRIZZLEL /OP SLEET PRECIF HAZE SNOW SAND T0 OBS ORIZZLE VI! ION s 64b C Ia.[ q U IS.S * TOTALS I I ~... ~ ~ ~ ~ ~ ~. :... l,,, - - ' 1 m I r 10Wd' Snoka

12 GLLBAL CLIMATOLOGY BRANH usafetac AIM WEATHER SERVICE/MAC PERCENTAGE FREOUENCY OF OCCURRENCE OF WEATHER CONDITIONS STATION NUMBER: STATION NAME: PLA77SOURGH AFB NY PERIOD OF RECORD:?8-87 MONTH: MAR... RAIN FRZING SNOW % OHS SMCKE DUST % OBS HOURS 1SIMS L/OR RAIN &IOR HAIL WIT H FOG E/OR BLOWING 0/OR w/cbst TOTAL (IST) DRIZZLE E/OR SLEET PRECIP HAZE SNOW SAND 10 OBS DRIZZLE VISION * * ' '......, 08-Z ,C O.6 93L OT-OS B B.N 10.0 lb C 6.C L C B e L TOTALS.1 7.b A.S k 0 STATION NUMBER: STATION NAME: PLATTSBURGH AFB NT PERIOD OF RECORD: TA-8 MONTH: APR I RAIN FRZING SNOw a OBS SMOKE DUST % OS HOURS I TSTMS 0/OR RAIN 0/OR HAIL WITH FOG E/OR BLCWING 0/OR W/BST TOTAL ILSIe I DRIZZLE &/OR SLEET PRECIF HAZE SNOW SAND 0 OAS DRIZZLE VISION o A.3 B * 1 1Z.B 4.7 lb.e S C B Cu cC U CC F C l.l S u t c.. TOTALS C :

13 GLLBAL CLIMATOLOCY BRANCH k6 WEATHER SERVICEMAC PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER CONDITIONS FROM HOURLY OBSFRVAIIONS STATION NUMBER: STAT ICN NAME: PLATTSBURGH AFS Ny PERIOD OF RECJRO: MONTH% MAY I RAIN FRZING SNOW % OBS SPORE OuST I ORS HOURS I TSTMS 0OR RAIN &/OR HAIL WITH FOG CIOR BLOWING E/OR W/CBST TOTAL ILST) DRIZZLE &/OR SLEET PRECIP HAZE SNOW SAND 10 CBS I DRIZZLE VISION I C L I L L S L C E TOTALS L STATION NUMBER: STATICh NAMF: PLATTSBURGH AFB NY PE0I00 OF RECoRD: MONTH: JUN I RAIN FAZING SNOW 5 OS SMOKE DUST x ORS HOURS I TSTMS &/OR RAIN C/OR HAIL WITH FOG 0/DR BLCwING EloR W/(BSI ITAL ILST) I CRIZLE &/OR SLEET PRECIP HAZE SNOW SAND 10 OeS DRIZZLE VISION O J3-OS Q-l].8 9.U 9.C p I0.C L L TOTALS

14 GLLBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC PERCENTAGE FREOUEhCT OF OCCURREfCE or WEATHEP CONCOITONS STATION NUMBER: STATICN NAME: PLATTSBURGH AFB NY PEDIO0 Or RECORD: MONTH: JUL I RAIN FRZING SNOW I % CR5 SWORE OUST OO1 HOURS TSIMS EfOR RAIN /OR HAIL WITH FOG C/OR BLOWING C/OR WICBS? TOTAL ILST) I DRIZZLE &/OR SLEET PRECIP HAZE SNOW SAND 10 OBS DRIZZLE VISION ? C C L L 15-17? L I C L TOTALS I L STATION NUMBER: STATICR NAME: PLATTSBURGH AFB NY PERIOD Or RECORD: MONTH: AUG... I RAIN FRZING SNOW % UBS SMOKE OUST % OpS HOURS I ISIMS C/OR RAIN CIOR HAIL WITH FOG CIOR BLOWING E/OR W/(BS1 IOTAL ILST) I DRIZZLE C/OR SLEET PRECIP HAZE SNOW SAND TO OBS DRIZZLE VISION u L L 1?-I4 1.1 b IS L L TOTALS Ia

15 GLCBAL CLIMATOLOGY BRANCH usafetac AIR WEATHER SERVICE/MAC PERCENTAGE FREOUEhCY OF OCCURRENCE or WEATHER CONDITIONS STATION NUMBER: STATION NAME: PLATTSBURGH AF3 NY PERIOD OF RECORD: 7p-s MONTH: SEP I RAIN FAZING SNOW I OBS SMOKE DUST % OBS HOURS I STHS CIOR RAIN C/OR HAIL WITH FOG C/OR SLOWING /OR WA/CST TOTAL ILSTI I DRIZZLE &/OR SLEET PRECIF HAZE SNOW SAND 10 OBS I DRIZZLE VISION C b 7.6 B S S IS-IT C c CL TOTALS o STATION NUMBER: STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: MONTH: OCT I RAIN FRZING SNOW % OB SMOKE OUST % 08s HOURS I TSIMS C/OR RAIN C/OR HAIL WITH FOG C/OR BLOWING C/OR A/(BST TOTAL (LST) I DRIZZLE C/OR SLEET PRECIp HAZE SNOW SAND 10 OS DRIZZLE VI!ION... O I ] I0.P !c t C is-i U TOTALS.1 1().3.4 1U o u.. TOTALS - Ag

16 GL(BAL CLIMATOLOGY BRANCH AIF WEATHER SERVICE/MAC PERCENTAGE FREQUENCY OF OCrURREACE OF WEATHER CONDITIONS STATION NUMBER: STATION NAME: PLAIISBURGH AFB NY PERIOD OF RECORO: MONTH: NOV... I RAIN FRZING SNOW % 0 8 S SNORE DuST % ORS HOURS I ISTMS &/OR RAIN CIOR HAIL WITH FOb E/OR BLOWING E/OR W/LEST TOTAL ILST) DRIZZLE 61OR SLEIT PRECIF HAZE SNOW SAND TO 08S I DRIZZLE VI!I ON ' C o 0-11 I C C no TOTALS C e ee.. Q... ee..... STATION NUMBER: STATION NAME: PLAITSBURGH AFR NY PERIOD Or RECORD: e MONTH: DEC. ~...e e~ o.. e..... e. e I RAIN FRZING SNOW I OpS SMOKE OUST I ORS HOURS I TSTMS E/OR RAIN C/OR HAIL WITH FOG L/OR BLOWING E/OR w/(ast TOTAL ILSTI I OIZZLE /OR SLEET PRECIF HAZE SNOW SAND 10 DaS DRIZZLE VI3ION... 0n S G b C I It G p TOTALS ' 7135 SANI..-

17 GLEBAL CLIMATOLOGY BRANCH usafetac AIR WEATHER SERVICE/MAC PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER CONDITIONS STATION NUMBER: STATICN NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: 78-8? MONTH: ALL d I 1.1 RZ'Z LE C / TECIP HAZE SNOW SAND 70.LEE O0 IDRIZZLE 81S1 ON..... Sd ANLL HN t7 SAP" "AV U Z Alum s 7200 JUL I1.5 S.9 S AUG C SEP OCT, ! NOV DEC, S TOTALS a IA- ago_ - 05

18 GLOBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC PERCENTAGE OF DAYS WITH VARIOUS ATMOSPHERIC PHENOMENA FROM DAILY OBSERVATIONS STATION NUMBER: STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: MONTH: ALL... RAIN FRZIN 6 SNOW % OBS SMOKE OUST % OS I TSTMS./OR RAIN 1/OR HAIL WITH FOG E/OR BLOWING LIOR Ii/BST TOTAL MONTH DRIZZLE f/or SLEET PRECIP HAZE SNOW SAND TO Os ORIZZLE VISION... JAN FEI 18.7 S.O s 904 MAR APR MAY JUN JUL AUG SEP T.8 76 B OCT S * NOV DEC TOTALS I e ' e e ~ e * e ~ e e o m s ~ m e o o m w m ~ e m w~ L

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20 V ~ ~ -r-kt PRECIPITATION. SNOWFALL AND SNOW DEPTH SUMMARIES PEACLNTAGE FREQUENCY Of VAPIOUS DAILY AMOUNTS OF PRECIPITATION ISNOWFALL Amn SNOW DEPTHI SUMMARIES: THESE SUMMARIES DERIVE FROM SUMMARY OF DAY DATA. DATA APE SUMMARIEO MONIHLY AND AKNUALLY WITH ALL YARS CO'BINED. DISPLAYED ARE: PERCENT OF DAYS Will' MEASURABLE AMOUNTS. A FECEN1T C(F DAYS 61TH NC AMOUNTS, TRACES. GIVIN AMOUNTS. MEANS, GREATEST AMOUNTS AND LEAST AMOUNT- (THE STATISTICAL ALuES ARE NOT TNCLUDED IN TIlE SNOW DEPTH SUMMARY BECAUSE CF THEIR DOESIFUL A%D LIMITED VALUr). ALSO PROVIDED ARE THE PbSE"VATIUN COUNTS. A VALUE OF 'o[" IN THESE TABLE-; IND:ATES -SS THAN.052 WHICH USUALLY INDTCYTES ONLY ONE OCCUTRENLE. LITREME DAILY AMOUNTS OF PRELIPDTATIUN ISNOWIALL AND SNOW UEPT11 SLMMAPIES: DATA DERIVED FROM SUMMARY OF DAY DAIA PRESENTED ARE THE EXTREPE DAILY AMOUNTS OF PRECIPITATION, SNOWFALL ANO SNOW OEPTH RY INUTVIUAL Ot.T' AUD year. ALSO PRESENTEO( ARE THE MEAN 5. STANDARD DE[VIATIONS AND TOTAL OASERVATION COUNTS. AN ASTERISK "" PRINTED IN THE TABLES INDICATES THAT THE ExIREME VALUE FOR THAT YEAR AND MONTH DERIVES FROM AN INCOMPLETE MONTH IAT LEAST ONE D AY OF THF MONTH IS MISSING). WHEN A MONTH HAS VALID ORSERVATlONS REPORTED BUT NT n OCCURRENCES, ZEROS APE OISFLAYr IN THE ViALES: LXITR"E DAILY PRLCIPITATION: ".UO" EQUALS NONr FOR THE MONTH IHfNOREDTHSI EYTREME DAILY SNOWFALL: ".UD EtIIJaS NON r FOq THE MONTH (TrNTHSI EXTREME DAILY SNOW OEPTH: 0"i ELUALS NONE FOR THE MONTH (WHOLE INCHES) TOTAL MONTHLY AMOUtNTS OF precipitation AND SNOWrALL SUMMARIES: DATA DERIVED FPO'M SUMMARY OF DAY DATA. DATA PRESENTFO BY YLAR AND MONTH. ALSO P17ESENTED AYE THE MEANS, S1ANPAPLI EFvIATIONS AND TOTAL OSEPVAATION COLUNTS. AI ASTFRISA "*" IN IHE TADLES INDICATES THAT OE Or MOITE DAYS wqe[ MISSING, FnP THE MONTH. NO OEC'JRRENCES FOR THE MONTH ARE ISuICATED B v?lpos. IF THE AMOUNT IS A TRACE. THEN "TRACE" IS PRINTED IN THE TAbLES. statistical VALUES DO NOT INCLIDE MEASUREMENTS FDOM TNCOPLLTE MONTHS. S p,boom...,,,_,. _..,.-.-, Am_- d -i H m,,,

21 GLOBAL CLI.ATOLOGY BRANCH AIR WEATHER SERVICEtNAC PERCENTAGE FREQUENCY OF OCCURRENCE OF PRECIPITATION FROM SUMMARY OF DAY DATA STATION NUMBER: STATION NAME: PLAYTSBURGH AFB NY PERIOD OF RECORD: 56-B7... AMOUNTS IN INCHES I I I I I.51 I I S.O1 I OVER 1 2 DAYSI TOTAL[ MONTHLY AMOUNTS N T I o1 MONTH NONE ITRACEI T TO I TO S.o0 I O I I i MEAS I ITH Ot I I II I I I I I I A I I I I MEAN GREATEST LEAS1... I I I I I I... I I i... JAN 2a :I I 37.7 I 'q FEB q.5i I ? N If I I MAR 42.5 I 23.9) ? APR ? I Ol ,55 I I g B MAY 46.8 I15.9? JU ? I I I JUN 47.5 I i 1 7.8! 6.01 I I 1.3 I I JUL ?1 7 " I I AUG ? ? 6.8? I I I I ? I OC I I I OCT ? 7.2? 5.51 I 1.1 I 33.a I I I I I I NOV ? I I I I I1 I I I I DEC I 1 I I I I II I I o I I I ANN I I I.9 I.0 I I I 36.0 I B9 *- ff-

22 'Uw.. --,., _.., , ~ GLuBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC EXTREME VALUES OF PRECIPITATION IFROM DAILY OBSERVATIONS) STATION NUMBER: 72622S STATION NAME: PLATTSBURGH AF8 NY PERIOD OF RECORD: HOUR AMOUNTS IN INCHES 3 -M-O-N-T-H-S- ALL YEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC MONIHS 56 I * to l SB % & c ? SS.6b ? 6b To Z.? Z So S i S * : o o B O SS NOTE I EBASED ON LESS THAN FULL MONTHS) CONTINUE 0 ON NEXT PAGE... 4 L

23 GLtBAL CLIMATOLOGY BRANCH EXTREME VALUES O! PRECIPITATION (FRoM DAILY 08SERVAlIONS) AIR WEATHER SERVICE/MAC STATION NUMBER: STATION NAME: PLATTSBURGH AFB Ny PERIOD OF RECORD: :"...' ''. '.. ''. '.. '... ''.O HOUR AMOUNTS IN INCHES -M-O.N-T-H-S- ALL YEAR JAN FEB MAR APR MAy JUN JUL AUG SEP OCT NOV EC MONTHS I MEAN I D3.71B S.. I * ,SO TOTAL OBS I NOTE A (BASED ON LESS THAN FULL MONIHSI L. L.

24 GLOBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC MONTHLY PRECIPITATION (FROM DAILY OBSERVATIONS) STATION NUMBER: STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: TOTAL MONTHLY PRECIPITATION IN INCHES -M-O-N-T-H-S- ALL YEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EC MONTHS Sb I * ,05 j.s T z S * SS R S4 7o b e Q6 1, t S SD q , o.70 8s NOTE I (BASED ON LESS THAN FULL MONTHS1 CONTINUED ON NEXT PAGE... AMR-L.... L

25 GLLBAL CLIMATOLOGY BRANCE AIR WEATHER SERVICE/MAC MONTHLY PRECIPITATION IFROM DAILY OBSERVATIONS) STATION NUMBER: STATION NAME: PLATTSBURGH AF0 Ny PERIOD OF RECORD: TOTAL MONTHLY PRECIPITATION IN INCHES -M-O-N.T.H-S- ALL YEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV CEC MONTHS 86"' , %.S S 87 I S D S.D TOTAL OBS ? % NOTE 0 6BASED ON LESS THAN FULL MONTHS) -' L

26 I GLOBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC PERCENTAGE FREQUENCY OF OCCURRENCE OF SNOWFALL FROM SUMMARY OF DAY DATA STATION NUMBER: STATION NAME: PLATTSBURGH AF B MY PERIOD OF RECORD: AMOUNTS IN INCHES I I 0.1 I I I 6.5 I o.5 I 15.s I 25.5 I OVER I DAYSI TOTALI PONTHILY AMOUNTS ITO TOI TOTO OTO 01TO TO I WITH I MONTH NONE ITRACEI 0.4 I I I 50.9 I S1.9 I MEAS i OS I I 1I I I I I I I I I I I AMTS I I MEAN GREATEST LEASI I I I I JAN I I B.FES I I I I.5 1 I I.1 I III I I I 28.9 I MAR I 1.1I I I I ~~I I I I I I III APR I I I I I I I I I I I MAY I JUN I I I I I I I I I I I I JUL I I I I I I I I I SEP TRACE TRACE.0 I I I I I I I I OCT I I I I I I I I I I I I I I I NOW TRACE DEC I I I 30.1 I I I I I I I I I I I I... ANN 75.0 I I ? I.3 I.1 I.0 I I I 10.8 I L

27 GLUBAL CLIMATOLOGY BRANCH A 1 WEATHER SERVICE/MAC EXTREME VALUES OF SNOWFALL IFROM DAILY OBSERVATIONS) STATION NUMBERs STATION NAME: PLATTSBURGH AFS Ny PERIOD OF RECORD: HOUR AMOUNTS IN INCHES -M-0-N-T-H-S- ALL YEAR JAN FEB MAR APR MAy JUN JUL AUG SEP OCT NOV DEC MONTHS -56 I 3.5 R*T 9.5 TRACE TRACE TRACE TRACE TRACE TRACE I TRACE.0.o.0.0 TRACE 6.T 5.0 1D TRACE TRACE * TRACE TRACE TRACE O f o T TRACE TRACE * TRACE TRACE TRACE TRACE 4.0 ' TRACE.0.O.0.0 TRACE T.3 is.% D.0 D E TRACE 5.9 f B.S TRACE " TRACE I TRACE TRACE TRACE 1.3 C T TRACE so TRACE TRACE ; S TRACE TRACE TRACE TRACE TRACE TRACE.0 2, NOTE * (BASED ON LESS THAN FULL MONTHS? CONTINUED ON 1,ERt PAGE-... * L L_

28 6LUBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICEJMAC EXTREME VALUES OF SNOWFALL (FROM DAILY OBSERVATIONS) STATION NUMBER: STATION NAME: PLAITSBUR6H AFB Ny PERIOD OF RECORD: HOUR AMOUNTS in INCHES I -M-O-..hT-H- S- ALL C - YEAR I JAN FEB MAR APR MAy JUN JUL AU6 SEP OCT NOV DEC MONTHS... 9;;...6 2:...6:... 5 RC TRACE'; TRACE I TRACE TRACE MEAN m 5.97 '1.90 ' ' TRACE * S.D DJ ODO T07AL OBS NOTE * IBASED ON LESS THAN FULL MONTHS$ -LL V

29 GLABAL CLIMATOLOGY BRANCH MONTHLY SNOWFALL IFROM DAILY OBSERVATTONS$ Alk WEATHER SERVICE/MAC STATION NUMBER: STATION NAME: PLATTSBURGH AFP Ny PERIOD OF RECORD: TOTAL MONTHLY SNOWFALL IN INCHES -M-ON-T-H-S- ALL TEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT Nov CEC MONTHS * TRACE TRACE TRACE TRACE TRACE TRACE 1.7 1c s TRACE TRACE i1s TRACE 1.1 TRACE * TRACE 7.1 TRACE 21.5 C S TRACE 1.9 IC TRACE s TRACE O *0 TRACE S TRACE TRACE TRACE O TRACE TRACE.1 4F TRACE TRACE * TRACE TRACE O.0 TRACE , TRACE S C S TRACE :1 TRACE "O *0 a *0.0.0.? 19.? 36,6 82 I TRACE TRACE TRACE TRACE I s.9 TRACE TRACE TRACE e NOTE * EBASED ON LESS THAN FULL MNT1THS CONTINUED ON NEXT PAGE... L L a-*_aim. h.ah me-.

30 GLOBAL CLIMATOLOGY BRANCH USAFEyAC AIR WEATHER SERVICE/MAC MONTHLY SNOWFALL *FROM DAILY OBSERVATIONSt STATION NUMBER: STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: TOTAL MONTHLY SNOWFALL IN INCHES -M-O-N-r.H.S- ALL YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC MONTHS TRACE.0.0 *D.0 TRACE C 69.3 MEAN , G TRACE j3 9 'B A1 S.0 I * TOTAL OBS ? NOTE A jbaseo ON LESS THAN FULL MONTHS1 0d&

31 GLI;BAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MaC PERCENTAGE FREQUENCY OF OCCURRENCE OF SNOW DEPTH FROM SUMMARY OF DAY DATA STATION NUMBER: STATION NAME: PLATTSBURGH AFS NY PERIOD OF RECORD: AMOUNTS IN INCHES I I I I I I I 25 I 37 I 1 9 I 61 OVER I DAYSI TOTALI MONTHLY AMOUNTS I I I TO I IO TO TO TO O I TO I WITH I MONTH I NONE ITRACEI I I 6 I 12 I 24 I 36 I 48 I 60 I 120 I 170 I MEAS I OBS I I I I I I I I I I I t I I ANTS I I MEAN GREATEST LEASi JAN b FES S , I I I I MAR I I I I II I I I APR 85.2 I 8.11 I 2.1 I I 1 1 I MAY I I JUN JUL I AUG I I I I I I I II I I S E P I. I I I III OCT I I I I NOv I I I 2.0O1 I.71 I 1 I DE C ANN, 7,0...,o... ANN ; "' ;,, o,.;...;,,, ;; ;..... [6 r".l-.

32 GLOBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC EXTREME VALUES OF SNOW DEPTH IFROM DAILY OBSERVATIONSI STATION NUMBER: 7262Z5 STATION NAME: PLATTSBURGH AFB My PERIOD OF RECORD: o...o...o...ee...o...e...o... DAILY SNOW DEPTH IN INCHES -M-ON.T-H.S- ALL YEAR 9 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV LEC MONTHS 5E. I ' e S js O O sb 1l TRACE a s O N TRACE a TRACE , TRACE a N N 66 1t 1N a 0 a a l IZ 11 N TRACE N a IN 73 S a C a 8 1N IN 76 IB 6 7 TRACE TRACE a a N N TRACE TRACE ID N B T N a TRACE a B TRACE a G a 0 TRACE N N TRACE a es a NT 0 O NOTE * (BASED ON LESS THAN FULL MONTHS) CONTINUED ON KEXT PAUE... * L_ ILL...,..,.. nii.. -,a-. -,. 1

33 GLtBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC EXTREME VALUES OF SNOW DEPTH IFROM DAILY OBSERVATIONS) STATION NUMBER: STATION NAMES PLATTSBURGH AFB Ny PERIOD OF RECORD: DAILY SNOW DEPTH IN INCHES -f-o.n. -H-S- ALL YEAR I JAN FEB MAR APR MAy JUN JUL AUG SEP OCT NOV VEC MONTHS... ".. -i ;... BA b i TRACE a MEAN I D.0.0 a S.D. I ' OOD B TkTAL OBS ' NOTE * IBASED ON LESS THAN FULL MONTHS) M L.-._.. l..... dll... _L

34 'A 1rPPF A: 4 ".AA-~ TTIT -PPRR PIppppppp AAAA RkpF RRRPR TTYTTTT~TTT rccclcc pp Pp AA AA RR RR? IT cc cc (.PPPPPPPPP AA AA RRRRR IT cc pppppppp AAAAAAAAAA RPRRRPRP IT cc PP AAAAAAAAAA nh RP IT cc pp AA AA RR PR T cc cc PP AA AA WR RRT 77 crcccccc pp AA AA PR Rk IT CCCCCC p

35 '_-z" ' l; 1A SURFACE WIND SUMMARIES XTREME VALUES OF PEAK WINDS! DATA DERAVED FROM SUMMARY 3F IAY LATA. VALUES PRESENTED KY INDIVIDUAL MONTH ARID YEAR WITH ALL YEARS COMBINED. 'PEEOS PRESENTED IN KNOTS. C DIRECTIONS PRESENTED IN 16 COMPASS POINTS FROM AEGINNIMG OF PEPIOD OF PECU(l THkOUCH JUNE If,. COMMENCING JULY 1968 DIFCTIONS PRESENTED IN TENS OF orgdees. AN ASTERISK "*" IN THE TABLES INDICATES THAT THE VALUE I; RASED ON AN INEO'APLLTE MONTH OF THPLE OR HOSE MISSING DAYS. MEANS AND STANDARD DEVIATIONS PRESNTET DO NOT INCLUDE INCOMPLETE MONIiS. COMPUIE THESE STATISTICS AND INCOMPLETF MONTHS ARE NOT INCLUDED. FOUR OR MORE MONTHS ARE NELTI) TO TABLES ALSO INCLUDE THE OBSERVATION COUNTS. LIVANIATE PERCENTAUE FREQUENCY TABULATIONS OF SURFACE WINUS: CATA DERTAEE FROM HOURLY DATA. PRESENTED ARE THE PERCENTAGE FREQUENCY OF WIND DIRFCTION TO I6 COMPASS PnINI, VERSUS IND SPEED IN KNOTS IN INCREMENTS OF EAUrOoT CLASSIFICATIONS. CALM AND VAQIABLE PERCENTAGES ARE SHOWN Ry BOTH DIRECTIONS AND SPEED. ANn TN ATOITION THE MEAN WIND STEED is FOR EACH DIRECTION. GIVN DATA PRESENTED 3Y THE STANDARO 3-HOUR TIME GROUPS PY MONTH. MONTHLY AN) ANNUALEy (ALL YEARS COMBINIDI. A SEPARATE ANNUAL TABLE PRESENTS THE SAME BIVAPIATF DISTOILITITNS VITH IMPPST CEILING/VISIRILITY LIMITATIONS: WHEN VISIBILITIES ECUAL TC OR GREATER THAN 112 MILES, THE CEILINSS ARE 200 TO l4rd FEET 3NO/ON WI-EN THE CEILING IS EQUAL TO OR nreater THAN TO FEET, THE VISIPILITIES ARE 112 THROUDH Z MILES. A PETCEPATAGE VALUE OF ".0" IN THESE TATLES INDICATES ONE OQ MORE OCCURRENCES AMOUNIING TO LESS THAE.3c%. F

36 GLOBAL CLIMATOLOGY BRANCH usafetac AIR WEATHER SERVICE/MAC EXTRENE VALUES OF SURFACE WINDS (FROM DAILY OBSERVATIONSI STATION NUMBER: STAIION NAME: PLA1ISBURGH AFB NY PERIOD OF RECORD: Sb-87 DAILY PEA% GUSTS IN KNOTS 3 -- O-N-?-H-S- ALL YEAR I JANI FEBi MARl APRA MAYA JUNI JULI AUG I SEPI OCTI NOVI VECI MONIHS 56 AA 3 I ASE *301 W $291 SSE 331 W 41 SSE 301 W 381 WSW*351 S? S *301 V *361 UNW NW *4121 WSW*311 SW *371 WNW*323 NW *261 WSw*341 W 1411 SSE 331 S 311 NW * WSW 351 WNW 361 WNW 391 WSW 341 WSW 391 WNW 351 WSW 331 W 301 SSE 291 WNW 421 sw 31 NW 291 WNW w 581 WSW 351 S 371 S 391 NW 321 NNW 331 w 391 NW 291 S 281 SSE 351 W :31 WW *361 W WNW 3141 WSW 361 N 30i SW 381 SSE 321 W *331 W 28A W 21. SSE 291 S 331 W I.1 NW 31 W 1 61 N 253 WSW 341 S 431 WSW 311 SSE 211 NNW 351 SE *321 NNW*Zsl SSE*291 WNW*301 SSW*3S1 WSW 331 S NW 0391 S 353 WNW 321 W 35 W 161 NNE 271 N 321 SE 291 NNE 291 WNW 401 NNW 331 WNW 421 W WSW 381 SW 401 SW 401 SW 521 NSW 371 W 0301NW 33 SW 391 NNW 381 NW 131 WNW 351 SSW 321 Sw W 381 mw 381 s 11 S 301 WSW 171 NNW 391 NW 36 WSW 321 W 151 SSE 311 WNW.71 S 351 WSW NW 1.1! 311 NW 311 SSE 311 W 311 WNW 311 NW 261 NNW 3* W 1 NW 'a8 SW %I1 NW :8 66 NW 481 u 451 6W.1. S 351 NNW 411 NW 311 NW 321 NW 301 SW 371 W 331 SW 331 S 361 NW SW 321 N 501 S 3.1 WSW 41l NNE 391 W 311 S 281 NW 261 S 391 S 351 WSW 381 W 1.31 N s NNW 41 W 41.l NNW 1.01 W 411 NW 291 S / / 281 1/ fill W / / S / / / % * / / / / / / / / / / 4. I/ / / 1 32/ / / / 341 Z0/ / 44 27/ / / 1 27/ / / / / 311 Z8/ / / / / / / / / / 31. 2/ IT/ / / 41 2Sf / / / / / / / / / / 32 36/ / / / 313 IS/ / / / / / / / / / / / 41 26/ 41 31/ 35 27/ 1.01 ZS/ / / / / / / 1 26/ / / / / / / / / / / 50 1/ / 401 2? / , 181 IS/ / / S / / / 28 18/ / / 38 24/ / /.21 25/ / / / / / / / / / / 1Ol 32/ / I/ / ?/ / / / / / / 361 3D/ / I 17/ 321 I/ / / / / / / / 4S / / / / 351 2%./ 361 2/ / / / / / 31 18/ / / / / / / / / / / 1.3 NOTES * ERASED ON LESS THAN FULL MONTHS) S ERASED ON LESS THAN FULL MONTHS AND.100 KNOTSI CONTINUED ON AEXT PAGE... * L.

37 GLuBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/mAC EXTREME VALUES OF SURFACE WINDS IFRO" DAILY OBSERVATIONS1 STATION NUMBER: STATION NAME: PLATTSBURGH AFS Ny PERIOD OF RECORD: DAILY PEAK GUSTS IN KNOTS I.N-O-N-T-H-S- ALL YEAR I JANI FEBI MARl APRI MAYI JUNI JULI AUGI SEPI OCTI NoVI CECI MONTHS 86 2:/1 39/ / 1.l 15/ / 'Ol / / / 361 2?1 35 zti 28/ / 50 35/9 18/ 361 Z9/ / / I' Sol 19/ 30l 28, MEAN I I ; S.D. I S TOTAL OBS I T1 941J NOTES A IBASED ON LESS THAN FULL MONTHSI S 1BASED ON LESS THAN FULL MONTHS AND #100 KNOTSI Ads-

38 GLCBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SiEEO FROM HOURLY observations STATION NUMBER: STATICN NAME: PLATTSRURGH AFB NY PERIOD OF RECORD: 78-V7 MONTH: JAN HOURS(1STI: WTD SPEED TN KNOTS DIRECTION ? D GE 56 T(TAL MEAN (DEGREES) I t WINO NNE S.C NE E FNE.1.1.c E L ESE.1.1 I.c SE.i SSE ? 9.s s SSW ' 5.C SW ! WSW A 7.2 W s WNW NW NNW 1.9 Z.C VARIABLE I TOTALS I *Y e... TOIAL NUMBER OF OBSERVATIONS: 930

39 GL.BAL CLIMATOLOGY BRANCH AIR WEATHER SERVICE/MAC PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO STEED FROM HOURLV OBSERVATIONS STATION NUMBER: STATICN NAME: PLATTSBURGH AFV NY PERIOD OF RECORD: 7e-87 MONTH: JAN HOURSILSTI: D300-DS00... WIhD SPEED IN KNCTS DIRECTION I P VT GE 56 TcTAL MEAN IDEGREESI t WIND... ''*''N. ;;... ;; ;; NNE b N I.2.1.T b.7 ENE L.. 1 C ESE...I 2.L SE SSE S SSW.9.B T.t SW.9 1.t ; WSW T. 6.C W B I S.E WNW I NW b i NNW T VARIABLE I TOTALS I C.8 1B.B lo io0r.a. e... TOTAL NUMBER OF OBSERVATIONS: 930 0

40 GLLBAL CLIMATOLOGY BRANCH AIR WEATHER SERVICEfMAC PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED STATION NUMBER: STATION NAME: PLATTSBURGH AFB NY PERIOD OF RECORD: MONTH: JAN HOURS(LSTI: I WIND SPEED TN KNOTS DIRECTION I D S5 GE 56 TCTAL MEAN (DEGREES) I WIND... ; ;...;...;...;...;...;... N I S NNE NE S.c ENE ESE SE SSE S SSW SW WSW W Q.s 5. WNW N W S NNW S. 6.f VARIABLE TOTALS t TOTAL NUMpER OF OBSERVATIONS: 930 min

41 GLLBAL CLIMATOLOGY BRANCH Al. WEATHER SERVICE/MAC PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEU STATION NUMPER: STAT ION NAME: PLAITSBuRbH AFB NY PEPIOD OF RECORD: 7A-87 MONTH: JAN HOUR71LST): I WOD SPEED IN KNOTS DIRECTION I F-SS GE 56 TCTAL MEAN IDEGREESI I t WIND N I NNE N.M 5.1 NE ENE E E 1.0. I.I 2.F ISEC.] SE ' SSF.1 2.C q 7E S ,5 SSW C S b WSW P. W l.s R WN W " 8.; NW C S NNW VARIABLEI CALM I//////i//I //// / //d // I//m/ // ///// / //I// // / TOTALS 1b.8 ;1.I S.9 IU0.C 5.s TOIAL NUMBER OF OBSERVATIONS: 930, = _...._ =... d I~ d-.,,. -

42 GLGBAL CLIMAICLOrY BRANCH usmfetac AIR WEATHER SERVICE/MAC PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEFD STATION NUMBER: 72b225 STATION NAME: PLATTSBURGH AFR NY PERIOD OF RECORD: M4ONIN: JAN HOURSILSI): O0 I WIND SPEED IN KNOTS DIRLCTION oi-*? GE 56 T(TAL MEAN IDEbREES) I t wind N I.Z ? NNE.9 3.C NE ENE E S ESE 1.3 I.C SE SSE i i.' 55W SW WSW b W WNU NN I. I 1.C S.5 1C.C NNW.3.4 1~. I l0.,3 VARIABLE I TOTALS io IOTAL NUMBER OF OBSERVATIONS-: 930 A