Annual Weather Book RECORDED BY NW RESEARCH & OUTREACH CTR. By: Michael Leiseth

Annual Weather Book RECORDED BY NW RESEARCH & OUTREACH CTR. By: Michael Leiseth

Table I II 1 2 3 4 5 6 7 8 9, 10 11, 12 13, 14 15, 16 17 18 An average year in Crookston, MN. Seasonal extremes in Crookston, MN. Precipitation Charts Table 1: Daily Precipitation Table 2: Seasonal Rainfall Table 3: Seasonal Snowfall Temperature Charts Table 4: Daily Average Temperature Table 5: Daily Maximum Temperature Table 6: Daily Minimum Temperature Table 7: Highest Maximum Temperature Table 8: Lowest Maximum Temperature Table 9: Highest Minimum Temperature Table 10: Lowest Minimum Temperature Table 11: Growing Degree Days Table 12: Frost Occurrence

AN AVERAGE YEAR AT CROOKSTON Yearly climatic fluctuations around Crookston make describing an average year a very difficult task. With the help of dedicated weather observers over the past 128 years, the weather data were summarized and averages detemined. From the 1890 2017 weather records, the following averages were tabulated: Precipitation Calendar year (January 1 December 31) Total precipitation Average April to August monthy precipitation Number of days with 0.10 inches of rain or more Number of days with 0.50 inches of rain or more Number of days with 1.00 inches of rain or more 20.79 inches 2.74 inches 42 days 11 days 4 days Temperature Calendar year (January 1 December 31) Annual Mean June, July, August Mean December, January, February Mean Average date of last 32 F spring low temperature Average date of first 32 F fall low temperature Period free of 32 F or lower temperature Period free of 28 F or lower temperature Number of days minimum temperature 32 F and below Number of days minimum temperature 0 F and below Number of days maximum temperature 90 F and above 39.7 F 67 F 8 F 11 May 22 Sep. 128 days 150 days 184 days 59 days 10 days I

SEASONAL EXTREMES AT CROOKSTON Extremes in temperature and precipitation are of great interest to a wide variety of people and also the news media and many organizations involved with water and flood prediction. The following list of weather extremes are extracted and calculated from the 1890 2017 weather records at Crookston Precipitation Highest annual 32.87 1941 Lowest annual 9.97 1936 Highest May July 18.37 1968 Lowest May July 2.46 1910 Highest May September 26.01 1941 Lowest May September 6.06 1936 Highest May 15 October 14 22.29 1968 Lowest May 15 October 14 5.51 1936 Highest Total per Month 9.66 June 1895 Highest Total per Day 5.85 31st Aug 1908 Longest Period of No Precipitation 59 1980 Longest Period of Precipitation 10 1930 Temperature Coldest year, mean 33.5 F. (1893) Warmest year, mean 45 F. (1931) Coldest December February 4.2 F. (1935 1936) Warmest December February 19.8 F. (1930 1931) Coldest June August 62.7 F. (1915) Warmest June August 71.6 F. (1988) Coldest month 14 F. (February 1936) Warmest month 78.6 F. (July 1936) Coldest day 51 F. (February 15,1936) Warmest day 106 F. (July 28,1917) Last spring low temperature of 32 F. (June 20,1940) First fall low temperature of 32 F. (August 13,1964) Longest period free of 32 F. or lower temperature (167 days 1922) Shortest period free of 32 F. or lower temperature (69 days 1964) II

Monthly Rainfall 2017 4.5 4 3.5 3 2.5 2 3.41 4.01 1.5 1 1.42 0.5 0 0.17 0.23 0.61 0.79 0.94 0.77 0.38 0.32 0.83 PRECIP. (INCHES) 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 2017 Precipitation Compared to 30 yr & 128 Yr Average Jan. Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MONTH 2017 30 Yr Avg 128 Yr Avg Page 1

Table 1: Daily precipitation (inches) for each month in 2017, with 30 yr and 128 yr average. Day Jan. Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 0.08 0.04 0.25 0.17 2 0.02 0.49 0.22 0.01 3 0.02 0.01 4 0.03 0.35 0.67 5 0.05 6 0.22 7 0.01 0.28 8 0.17 0.04 9 0.10 0.16 10 0.02 11 0.11 0.01 12 0.04 13 0.71 0.04 14 0.01 0.01 0.01 15 0.91 0.01 16 0.28 0.16 0.18 0.01 0.01 17 0.01 0.05 0.11 18 0.03 0.35 0.01 19 0.02 0.10 1.02 20 0.15 0.23 0.10 21 0.01 0.08 0.19 0.08 0.49 0.03 22 0.08 0.02 0.02 23 0.26 0.01 0.07 0.05 24 0.01 0.23 0.82 0.06 25 0.26 26 0.60 27 0.06 0.03 0.05 28 0.21 1.45 0.03 29 0.01 30 0.09 0.01 0.01 31 0.04 0.42 0.01 Total: 0.17 0.23 0.61 0.79 0.94 3.41 1.42 0.77 4.01 0.38 0.32 0.83 Total for last year: 13.88 Total for 2016: 21.24 5 yr 0.45 0.39 0.81 1.12 3.01 3.57 2.55 1.72 1.81 1.48 0.58 0.56 10 yr 0.46 0.42 1.05 1.20 2.98 3.79 2.59 2.23 2.49 2.08 0.64 0.73 30 yr 0.49 0.45 0.86 1.12 2.97 3.80 3.09 2.82 2.42 1.84 0.87 0.65 128 yr 0.54 0.54 0.84 1.45 2.67 3.61 3.06 2.90 2.21 1.58 0.80 0.59 Page 2

Table 2: Yearly Small Grain Season (May Sugarbeet Season (May1 Sept. Seasonal Rainfall (Inches) Corn Sunflower Season (May ( May 1st _ Sept. 30th) Days with total precipitation 0.1 inches 0.5 inches 1.00 inches or more or more or more Total 1 July 31 30) 15 Sept. 30) 2017 13.88 5.77 10.55 10.37 23 6 2 2016 21.24 11.97 16.89 16.80 29 9 4 5 yr avg 18.47 9.80 13.60 12.90 24 8 4 10 yr avg 20.36 10.30 13.90 13.20 24 8 4 30 yr avg 21.46 10.20 15.60 14.50 27 9 4 128 yr avg 20.79 9.30 14.50 13.40 27 9 3 Page 3

Yearly Snowfall 30 25 SNOW (INCHES) 20 15 10 5 0 Jan. Feb. Mar. Apr. May Sept. Oct. Nov. Dec. MONTH 2017 2016 2015 2014 2013 Table 3 : Yearly Snowfall Year Total Jan. Feb. Mar. Apr. May Sept. Oct. Nov. Dec. 2017 16 0 3 0 3 0 0 1 4 6 2016 39 6 5 2 0 0 0 0 0 26 2015 25 6 4 3 0 0 0 0 4 9 2014 38 17 6 14 1 0 0 0 0 0 2013 72 8 15 19 8 0 0 0 2 20 5 Yr. Avg 38 7 6 8 2 0 0 0 2 12 10 Yr. Avg 41 8 7 8 3 0 0 0 4 15 30 Yr Avg 41 9 7 7 2 0 0 1 5 11 71 Yr Avg 41 9 6 7 2 0 0 1 6 9 Page 4

Max, Min, and Average for 2017 100 80 60 40 20 0 20 40 Max Temp. Min Temp. Avg Temp. Poly. (Avg Temp.) Max, Min, and Average for 2016 100 80 60 40 20 0 20 40 Max Temp. Min Temp. Avg Temp. Poly. (Avg Temp.) Page 5

Table 4: Daily Average Temperature (F) for 2017 with Monthly Averages Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 19 4 12 45 46 65 60 69 64 59 32 31 2 14 4 7 49 53 78 59 63 66 55 24 30 3 2 7 18 45 54 71 67 64 70 53 22 29 4 15 13 35 44 55 67 77 65 58 49 30 26 5 15 3 42 38 63 70 76 64 55 49 20 11 6 11 8 37 40 56 75 69 65 51 47 14 6 7 8 5 16 47 61 69 66 65 62 59 13 10 8 2 4 14 55 62 68 68 66 56 51 12 22 9 4 9 3 38 56 71 71 69 62 38 4 18 10 3 6 1 34 49 70 68 69 73 46 10 22 11 8 26 7 40 49 71 74 63 66 48 26 18 12 8 17 13 48 57 65 62 64 73 55 21 16 13 11 23 12 51 63 66 63 65 72 44 31 24 14 2 31 14 59 67 69 64 66 62 41 36 17 15 9 18 20 53 64 68 67 67 54 38 27 17 16 9 31 31 45 57 67 66 65 50 51 28 19 17 12 38 30 35 53 63 74 70 52 55 26 22 18 25 37 27 40 51 60 68 68 55 51 15 31 19 33 40 42 41 48 62 67 70 66 53 23 17 20 34 39 36 50 47 61 70 67 62 64 32 4 21 35 39 20 47 44 68 76 63 67 59 16 3 22 32 28 25 46 49 63 70 60 67 52 18 5 23 28 21 36 32 50 59 69 60 55 46 31 7 24 25 18 34 36 53 52 69 63 53 38 36 5 25 19 22 37 34 58 53 72 65 50 45 23 14 26 15 12 39 29 59 57 68 63 46 39 27 15 27 18 21 39 30 63 62 69 66 56 26 41 10 28 25 20 44 41 57 63 71 69 54 28 28 4 29 20 47 44 51 66 73 74 48 38 34 13 30 28 44 49 55 62 75 66 58 29 33 21 31 15 47 61 76 63 24 19 2017 Avg 11 18 26 43 55 65 69 65 59 46 24 10 2016 Avg 10 19 35 39 59 64 69 68 59 46 40 12 30 Yr Avg 7 11 26 42 56 66 69 68 58 43 27 13 128 Yr Avg 5 9 24 42 55 65 70 67 57 45 27 12 Page 6

Table 5: Daily Maximum Temperature (F) for 2017 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 23 11 22 51 58 85 71 79 70 64 35 39 2 17 9 10 58 65 94 72 73 83 64 30 43 3 10 14 32 58 65 83 81 73 92 62 30 39 4 9 21 45 56 73 81 91 79 71 58 34 37 5 7 8 52 46 80 85 89 78 69 61 30 15 6 2 15 55 52 73 90 81 80 70 62 24 14 7 2 5 23 61 74 80 78 81 80 75 25 24 8 10 3 24 65 73 80 84 83 73 61 17 31 10 9 15 0 11 49 69 86 81 78 81 49 12 26 11 12 24 7 44 58 81 84 80 86 64 22 27 12 1 35 14 53 68 84 85 80 83 62 31 35 13 5 28 19 62 70 78 69 79 93 69 26 32 14 1 32 22 65 79 76 74 72 84 56 43 35 15 8 39 25 70 80 79 80 80 68 52 41 20 16 15 31 31 64 81 77 78 80 60 54 33 21 17 15 37 38 57 64 80 83 68 54 72 33 28 18 23 44 36 43 61 71 87 79 62 77 35 30 19 32 42 36 47 63 69 80 82 70 62 20 35 20 37 47 51 53 63 73 81 87 76 74 36 31 21 35 47 49 59 53 74 85 78 73 79 44 10 22 37 47 24 64 52 85 86 74 81 70 22 9 23 33 35 34 60 53 77 79 76 80 65 28 18 24 33 29 39 35 59 65 80 75 61 56 44 21 25 28 21 37 40 70 59 80 75 56 47 45 1 26 24 30 43 37 70 67 84 77 54 56 30-10 27 20 18 46 32 72 74 81 69 53 50 31-11 28 26 30 48 36 78 79 84 78 71 31 54 3 29 26 30 56 52 64 67 86 87 68 35 38 7 30 24 61 60 59 76 87 90 63 47 48-8 31 33 55 62 66 71 89 81 72 34 40-16 33 57 77 87 77 32-11 Page 7

Table 6: Daily Minimum Temperature (F) for 2017 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 15-3 1 38 34 46 50 58 58 54 28 23 2 10-2 3 39 40 61 46 52 49 45 17 16 3-13 0 3 32 43 59 52 55 49 44 13 19 4-20 5 24 32 36 54 63 50 45 39 26 14 5-22 -2 32 31 45 56 64 50 41 36 11 6 6-20 1 18 29 38 61 57 49 32 32 5-3 7-14 -14 9 34 48 57 55 49 44 44 1-3 8-14 -10 4 45 50 56 51 49 38 42 6 13 9-7 -17-6 27 42 56 60 60 43 27-5 10 10-7 -12-6 24 40 60 53 57 60 27-1 18 11-16 17-1 26 31 59 63 46 49 34 21 0 12-20 6 6 34 45 52 56 49 52 40 16-1 13-23 14 2 36 46 57 52 57 60 31 19 13 14-5 23 2 47 53 59 48 51 56 31 31 14 15 3 5 8 42 47 59 55 54 49 21 21 13 16 3 24 24 32 49 55 49 62 46 31 22 10 17 1 32 23 27 45 56 60 61 41 33 18 13 18 18 31 17 32 38 52 56 53 41 40 11 26 19 28 32 33 30 34 51 53 53 56 32 9 2 20 33 31 22 40 41 48 55 55 52 50 20-1 21 33 31 15 31 36 52 65 51 53 49 11-14 22 30 20 16 32 45 50 60 44 54 39 8-8 23 23 13 32 30 41 53 58 44 49 35 17-8 24 21 14 30 33 36 46 57 50 49 28 27-12 25 14 13 30 31 45 40 60 52 47 34 16-18 26 9 5 31 27 46 41 56 56 40 29 24-20 27 10 11 30 23 47 45 54 54 40 21 28-24 28 23 10 31 29 49 59 57 51 40 20 18-16 29 15 32 28 44 55 59 58 33 29 20-17 30 23 33 36 43 53 62 50 44 25 26-26 31-4 36 45 64 49 16-27 Page 8

Table 7: Highest maximum Temperature (F) Recorded, 1890 2017 Day Jan. Feb. Mar. Apr. May June Day 1 41 (1927) 38 (1952) 48 (1992) 73 (2012) 88 (1952)+ 93 (1939) 1 2 41 (1944) 47 (2000) 52 (1905) 72 (1910) 91 (1959) 94 (1948) 2 3 36 (1944) 44 (1991) 57 (2000) 75 (1921) 91 (1959) 93 (1968) 3 4 40 (2001) 47 (1925) 53 (2000) 75 (1930)+ 91 (1985)+ 92 (1968)+ 4 5 57 (1902) 45 (1963) 67 (2000) 80 (1991) 97 (1926) 94 (1988) 5 6 40 (1990) 47 (2002) 61 (2000) 81 (1991) 97 (1926) 97 (1959) 6 7 45 (2003) 48 (1991) 60 (2000) 79 (1931) 94 (1891) 99 (1959) 7 8 46 (2002) 48 (1898) 50 (1898) 78 (1931) 89 (1987) 96 (1959) 8 9 45 (2012)+ 45 (1898) 55 (2015) 79 (1977) 88 (1928) 95 (2000)+ 9 10 44 (1958) 42 (1928) 55 (1990) 82 (1925) 92 (1987) 95 (1956) 10 11 40 (1958) 50 (2002) 58 (1990) 81 (1955) 89 (1906) 94 (1996)+ 11 12 42 (1928) 42 (1898) 60 (2015)+ 80 (1968) 94 (1900) 104 (1893) 12 13 43 (1899) 48 (2011) 61 (2012) 86 (2003) 92 (1932) 97 (1893)+ 13 14 43 (1899) 46 (1983)+ 62 (2015) 80 (1942) 90 (1932) 100 (1893) 14 15 40 (1942) 45 (1931)+ 70 (2015) 84 (1926) 95 (1987) 94 (1933) 15 16 43 (1942) 46 (1931) 74 (2012) 85 (2002) 87 (1918)+ 98 (1933) 16 17 41 (1972)+ 48 (2002) 73 (2012) 80 (1890) 91 (1972) 99 (1995) 17 18 38 (1944) 49 (2002) 72 (2012) 89 (1987) 92 (2012) 101 (1933) 18 19 45 (1900) 45 (1930) 73 (2012) 84 (1985) 94 (1948)+ 99 (1933) 19 20 47 (1944) 48 (1930) 75 (2012) 89 (1980) 88 (1994)+ 99 (1910) 20 21 46 (1900) 47 (2016)+ 69 (1910) 96 (1980) 99 (1964) 99 (1910) 21 22 47 (1900) 48 (1958) 67 (2012) 96 (1980) 95 (1980) 91 (1922)+ 22 23 47 (1942) 55 (1958) 76 (1910) 89 (1990) 94 (1928) 96 (1910) 23 24 48 (1981) 54 (1958) 68 (1945) 83 (1891) 91 (1967) 96 (1936) 24 25 43 (1944) 63 (1958) 66 (1945) 87 (1891) 90 (1980) 99 (1900) 25 26 42 (2006) 55 (1958) 67 (1946) 79 (1977) 95 (1931) 95 (1890) 26 27 40 (1892) 49 (1895) 78 (1946) 90 (1952) 97 (1977) 98 (1910) 27 28 40 (1892) 53 (1905) 74 (1946) 92 (1952) 95 (2006) 98 (1970) 28 29 43 (1992)+ 48 (1932) 66 (1963) 88 (1952)+ 96 (1939) 100 (1912) 29 30 41 (1993)+ 74 (1967) 87 (1992)+ 101 (1939) 99 (1921) 30 31 44 (2009) 78 (1963) 98 (1939) 31 128-Y Jan. 5 Feb. 25 Mar. 31 Apr. 21,22 May 30 June 12 128-Y Record 57 (1902) 63 (1958) 78 (1963) 96 (1980) 101 (1939) 104 (1893) Record + Previous years than the one recorded with the same temperature. Page 9

(Continued) Highest Maximum Temperature July Aug. Sep. Oct. Nov. Dec. Day 101 (1921) 99 (1989) 97 (1894) 86 (1976)+ 68 (2000)+ 54 (1962) 1 95 (2012)+ 100 (1946) 94 (1960) 87 (1892) 67 (1978) 51 (1962) 2 92 (2012) 100 (1989) 98 (1983) 85 (1937) 67 (2008) 54 (1982) 3 92 (1940)+ 99 (1947) 92 (1979)+ 87 (2011) 71 (1975) 54 (1941) 4 104 (1988) 98 (1931)+ 96 (1978) 89 (2011) 71 (1975) 47 (1939) 5 100 (1988)+ 98 (1941) 96 (1978)+ 85 (1909) 71 (2016) 52 (1939) 6 102 (1936) 97 (1963)+ 98 (1931) 86 (1975) 68 (1999) 56 (1939) 7 102 (1936) 104 (1983) 95 (1978) 83 (1975) 69 (1931) 50 (1990) 8 100 (1936) 98 (1949) 95 (1978)+ 84 (1938) 67 (2010) 56 (1990) 9 105 (1936) 97 (1988) 93 (1998) 83 (1938)+ 66 (1909) 49 (1939) 10 105 (1936) 95 (1988) 99 (1931) 84 (2015) 58 (1954) 47 (1928) 11 105 (1936) 95 (1978) 90 (1952) 88 (2015) 58 (1934) 51 (1939) 12 103 (1936) 101 (1965) 91 (1927) 82 (1934) 58 (2001) 45 (2002)+ 13 100 (1936) 100 (1965) 90 (1897) 80 (1962) 62 (1939) 46 (1890) 14 99 (1931) 99 (1952) 87 (1891) 80 (1962) 64 (2015) 43 (1913) 15 101 (1936) 96 (1971) 89 (1979) 80 (1963)+ 66 (2001) 52 (1962)+ 16 101 (1932) 97 (1945) 90 (1892) 80 (1910) 67 (1953) 48 (1939) 17 100 (1932) 100 (1976) 90 (1891) 76 (1945) 55 (1953)+ 50 (2011) 18 99 (1932) 100 (1976) 88 (1970) 78 (1953) 64 (1917) 47 (1890) 19 98 (1918) 99 (1976) 88 (1970)+ 79 (1953) 60 (1890) 47 (1890) 20 101 (1893) 99 (1976) 93 (1891) 81 (1947) 57 (2009) 41 (2003)+ 21 98 (2012)+ 97 (1947) 93 (1936) 75 (1963)+ 51 (1890) 46 (1890) 22 97 (1941) 95 (1925) 91 (2007) 79 (1963) 51 (1939) 40 (1899) 23 95 (1932)+ 97 (1976) 84 (1997) 75 (2014) 55 (2011) 44 (1957) 24 101 (1931) 97 (2013)+ 91 (1938) 72 (1901)+ 50 (1914) 44 (2011) 25 99 (1941) 95 (1937) 90 (1892) 76 (1990) 51 (1962) 49 (2011) 26 101 (1941) 97 (1991) 87 (1974) 72 (1944)+ 50 (1899) 40 (1928) 27 106 (1917) 96 (1991) 90 (1952) 71 (1944) 51 (1890) 38 (1962)+ 28 98 (1975) 96 (1969) 90 (1892) 71 (1891) 50 (1914) 49 (1897) 29 100 (1929) 93 (1972) 86 (1976) 72 (1950) 49 (1969) 42 (1897) 30 96 (1987)+ 93 (1921) 73 (1999) 38 (1904) 31 July 28 Aug. 8 Sept. 11 Oct. 5 Nov. 4,5 Dec. 7,9 128-Y 106 (1917) 104 (1983) 99 (1931) 89 (2011) 71 (1975) 56 (1939) Record (1990) + Previous years than the one recorded with the same temperature. Page 10

Table 8: Lowest Maximum Temperature (F) Recorded, 1890 2017 Jan. Feb. Mar. Apr. May June Day -16 (1974) -29 (1996) -6 (1916) 16 (1936) 34 (2011) 47 (1945) 1-17 (1911)+ -22 (1996) 0 (1893) 18 (1954) 30 (1907) 50 (1897) 2-18 (1896) -20 (1907)+ -3 (1917) 19 (2007) 32 (1954) 48 (1951) 3-20 (1896) -21 (1895) -6 (1919) 25 (1954)+ 38 (1944) 49 (1935) 4-20 (1912) -24 (1936) 2 (1893) 16 (1916) 38 (1931) 49 (1944) 5-20 (1912) -22 (1936) -1 (2008)+ 20 (1979) 35 (1907) 40 (1901) 6-17 (1966) -21 (1936) 1 (1996) 9 (1997) 40 (1950) 53 (1937) 7-15 (1894) -26 (1899) 2 (2003) 17 (1997) 41 (1955) 53 (1915) 8-20 (1912) -18 (1899) -3 (1948) 23 (1997) 36 (1907) 54 (1908) 9-25 (1912) -23 (1899) -8 (1948) 28 (1997) 38 (1946) 47 (1947) 10-25 (1912) -16 (1914) 2 (1956) 27 (1940) 39 (1946) 55 (1941) 11-13 (1916) -19 (1936) 2 (1896) 26 (1907) 42 (1901) 54 (1942) 12-21 (1916) -10 (1949) -4 (1897) 22 (1950) 40 (1907) 54 (1917) 13-23 (1892) -11 (1939) -5 (1897) 31 (1904) 42 (1946) 61 (1917) 14-18 (1972) -22 (1936) -4 (1897) 22 (1904) 41 (1916) 57 (1905) 15-17 (1977) -20 (1936) 6 (1893) 23 (1907) 45 (1942) 56 (1915) 16-20 (1994) -14 (1903) 1 (1902) 27 (1953) 41 (1890) 56 (1915) 17-20 (1994)+ -18 (1966) 5 (1923) 29 (1949) 45 (1890) 55 (1944) 18-17 (1996)+ -10 (1894) 10 (1912) 28 (1928) 38 (1968) 62 (1902) 19-22 (1943) -10 (1939) 12 (1913) 35 (1941)+ 38 (1931) 58 (1902) 20-18 (1954) -8 (1939) 6 (1906) 33 (1893) 45 (1953)+ 57 (1942) 21-20 (1936) -10 (1914) 10 (1940) 25 (1967) 55 (1963) 55 (1942) 22-28 (1936) -10 (1904) -4 (1974) 32 (1967) 42 (1968) 61 (1905) 23-24 (1904) -10 (1950) 8 (1923) 38 (1949)+ 51 (1974)+ 65 (1897) 24-14 (1918)+ -10 (1919) 7 (1996) 30 (1937) 46 (1943) 60 (1907) 25-20 (1893) -12 (1919) 14 (1904) 32 (1950) 47 (1943) 58 (1925) 26-15 (1966)+ -11 (1962) 15 (1899) 33 (1907) 42 (1965) 58 (1914) 27-25 (1966) -12 (1962) 11 (1970) 34 (1950) 48 (1947) 65 (1943) 28-20 (2004) -8 (1916) 10 (1969) 37 (1984)+ 53 (1910) 55 (1891) 29-20 (1918) 12 (1907) 33 (1909) 52 (1907) 58 (1945) 30-17 (1996) 16 (1936) 47 (1946) 31 Jan.23 Feb.1 Mar.1 Apr.7 May 2 June 6 128-Y -28 (1936) -26 (1893) -6 (1916) 9 (1997) 30 (1907) 40 (1901) Record + Previous years than the one recorded with the same temperature. Page 11

(Continued) Lowest maximum temperature July Aug. Sep. Oct. Nov. Dec. Day 57 (1968) 64 (1903) 56 (1946) 42 (1993) 11 (1984) -16 (1896) 1 60 (1915) 63 (1907) 56 (1974)+ 39 (1989) 17 (1951)+ -10 (1896) 2 60 (1915) 67 (1978) 56 (1918) 43 (1950) 18 (1951)+ -1 (1964) 3 63 (1915)+ 65 (1907) 57 (1935) 40 (1898) 17 (1951) -2 (1898) 4 67 (1904) 70 (1912) 58 (1986)+ 42 (1952) 17 (1935) -1 (1984) 5 66 (1908) 62 (1921) 50 (1911) 42 (1976)+ 19 (1959)+ -11 (1936) 6 58 (1994) 65 (1909) 55 (1946)+ 37 (1917) 10 (2003) -11 (1893) 7 66 (1994)+ 64 (1917) 51 (1941) 34 (1985) 13 (1966) -9 (1927) 8 66 (1958) 64 (1914) 51 (1928) 31 (1985) 17 (1902) -15 (1977) 9 67 (1951) 64 (1913)+ 52 (1962) 37 (1935) 15 (1995)+ -13 (1893) 10 65 (1993) 63 (1951) 50 (1902) 33 (1917) 8 (1911) -12 (1995) 11 67 (1913) 64 (1985)+ 46 (1890) 33 (1917)+ 8 (1911) -12 (1917) 12 63 (1993)+ 66 (1994)+ 46 (1903) 37 (1937) 8 (1911) -21 (1917) 13 65 (1961) 64 (1979) 47 (1956) 36 (1909) 8 (1940) -17 (1901) 14 63 (1906) 64 (1897) 42 (1903) 38 (1897) 6 (1932) -11 (1926) 15 64 (1937) 66 (1964) 50 (1918)+ 32 (1952) 14 (1903) -6 (1963) 16 63 (1915) 63 (1935)+ 45 (1901) 30 (1930) 10 (1903) -11 (1897) 17 63 (1895) 62 (2004) 46 (1918) 27 (1930) 1 (1894) -12 (1983) 18 70 (1915)+ 63 (1907) 49 (1918) 30 (1917)+ -5(1896) -23 (1916) 19 64 (1895) 65 (1902) 45 (1945) 28 (1913) 0 (1896) -19 (1989) 20 63 (1948) 60 (1916)+ 46 (1912) 32 (1913) -2 (1896) -18 (1999) 21 67 (1949) 61 (1906) 46 (1895) 30 (1917) 5 (1892) -15 (1999) 22 63 (1897) 58 (1940) 44 (1942) 26 (1936) -1 (1900)+ -15 (1983) 23 67 (1911) 50 (1914) 37 (1912) 29 (1933) 3 (1977) -18 (1983) 24 67 (1918)+ 53 (1914) 40 (1942)+ 26 (1997) 2 (1996) -18 (1933) 25 67 (1918) 55 (1911) 40 (1934) 29 (1936) -2 (1985) -16 (1934) 26 65 (1905) 59 (1946)+ 39 (1941) 22 (1919) -8 (1985) -19 (1917) 27 66 (1971) 60 (1907)+ 40 (1908)+ 20 (1925) -6 (1985) -21 (1917) 28 63 (1903) 55 (1892) 41 (1894) 23 (1917)+ -15 (1896) -16 (1990) 29 63 (1903) 58 (1904) 44 (1908) 24 (1996) -16 (1896) -15 (1893) 30 66 (1931) 59 (1974)+ 25 (1911) -16 (1973) 31 July 1 Aug.24 Sep.24 Oct.28 Nov.30 Dec.19 128-Y 57 (1968) 50 (1914) 37 (1912) 20 (1925) -16 (1896) -23 (1916) Record + Previous years than the one recorded with the same temperature. Page 12

Table 9: Highest Minimum Temperature (F) Recorded, 1890 2017 Jan. Feb. Mar. Apr. May June Day 27 (1992)+ 28 (1992) 30 (1992)+ 49 (2012) 62 (1988) 66 (1923) 1 32 (1992) 29 (1991) 33 (1961) 47 (1991) 57 (1951) 66 (1944) 2 30 (1927) 31 (1991)+ 33 (1983)+ 40 (1958)+ 62 (1941) 66 (1948) 3 30 (2007) 30 (1925) 33 (1992)+ 43 (1929) 61 (1941) 69 (1988) 4 27 (1902) 26 (1991)+ 35 (1992) 49 (1991) 61 (1941) 65 (1988)+ 5 29 (1984) 27 (1925) 37 (1983) 44 (1991) 67 (1926) 73 (1939) 6 27 (1963) 28 (1991) 35 (1973) 44 (1963)+ 65 (1896) 67 (1959) 7 32 (2002) 23 (1935) 34 (1968) 48 (1900) 61 (1897) 65 (1972)+ 8 32 (2002) 34 (2009) 36 (1903) 42 (2005)+ 65 (1896) 74 (1894) 9 28 (1958) 32 (2009) 35 (1973) 45 (1976) 63 (1991)+ 65 (1970)+ 10 24 (2002)+ 27 (1908) 39 (1990) 45 (2015)+ 63 (1991) 72 (2007) 11 32 (1928) 32 (1908) 39 (1995) 52 (1941) 60 (1977) 75 (1894) 12 26 (1960) 33 (1935) 36 (1964) 45 (2002)+ 65 (1958) 70 (1894) 13 30 (1906) 33 (2011)+ 36 (1973) 52 (1976) 65 (1932) 71 (1979) 14 26 (1969) 28 (2011)+ 45 (2015) 53 (1963) 63 (1977) 73 (1973) 15 29 (1931) 33 (1998) 44 (2012) 54 (1963) 61 (1903) 74 (1995) 16 20 (1972) 33 (1998) 53 (2012) 53 (1977) 64 (1903) 71 (1995)+ 17 32 (1944) 32 (1998)+ 60 (2012) 55 (1931) 67 (1972) 71 (1995) 18 32 (1914) 34 (1930) 57 (2012) 53 (1973) 68 (1941) 72 (1933) 19 24 (1919)+ 31 (1899) 38 (1946) 60 (1900) 60 (1902) 70 (1909) 20 32 (1908) 34 (1930) 46 (1926) 54 (1900) 67 (1991) 73 (1910) 21 20 (1942) 33 (1930) 37 (1902) 50 (1957)+ 66 (1991) 73 (2005) 22 33 (1909) 32 (1931) 48 (2012) 52 (1957)+ 62 (2006) 72 (1922)+ 23 32 (1944) 38 (2000) 45 (1945) 54 (1900) 68 (1967) 72 (1910) 24 32 (1968) 35 (1998) 48 (1945) 59 (1894) 65 (1977) 71 (1936)+ 25 26 (2006)+ 40 (1958) 46 (1945) 55 (1901) 65 (1978) 74 (1996) 26 24 (1891) 36 (1933) 41 (1968) 60 (1974) 68 (2006) 77 (1996) 27 23 (2006) 37 (1932) 45 (1946) 58 (1896) 71 (1969) 74 (1963) 28 26 (1992)+ 32 (2004) 47 (1963) 55 (1952) 70 (1937) 75 (2002)+ 29 29 (1931) 50 (1967) 60 (1894) 71 (1988) 76 (1931) 30 30 (2005) 42 (1963) 73 (1997) 31 Jan. 23 Feb. 26 Mar. 18 Apr. 20,27,30 May 31 June 27 127-Y 33 (1909) 40 (1945) 60 (2012) 60 (1900) 73 (1997) 77 (1996) Record (1974), (1894) + Previous years than the one recorded with the same temperature. Page 13

(Continued) Highest minimum temperature July Aug. Sep. Oct. Nov. Dec. Day 75 (1919)+ 73 (1989)+ 74 (1921) 59 (1973)+ 47 (1938) 34 (1909) 1 76 (2010) 74 (1989) 70 (1929) 64 (1897) 45 (1964)+ 32 (1973)+ 2 70 (2012)+ 67 (1909) 70 (1960) 64 (1914) 49 (1956) 40 (1941) 3 70 (1938)+ 72 (1947) 70 (1897) 64 (1914) 46 (1981)+ 33 (1941) 4 71 (1910) 72 (1947) 71 (1960) 62 (2011) 44 (1977)+ 29 (1920) 5 71 (1937) 72 (1941)+ 74 (1970) 68 (2011) 50 (1977) 32 (1951) 6 75 (1936) 72 (1937) 76 (1976) 60 (1975) 50 (1977) 32 (1935) 7 78 (1936) 70 (1949) 70 (1897) 60 (1975)+ 44 (1963) 30 (1952) 8 73 (1936) 68 (1976)+ 70 (1964) 53 (1923) 39 (1964) 34 (1939) 9 80 (1936) 70 (1947)+ 65 (1972)+ 62 (1938) 42 (2009) 29 (2015) 10 81 (1936) 72 (1936)+ 71 (1931) 60 (1997) 44 (2009) 34 (1921) 11 79 (1936) 71 (1969) 70 (1952) 60 (1943) 46 (2007) 33 (1921) 12 74 (1936)+ 73 (1978) 70 (1952) 62 (1956) 43 (1981)+ 30 (2006)+ 13 74 (1901) 73 (1922) 71 (1927) 61 (1963)+ 43 (1944) 33 (1928) 14 73 (1983) 77 (1937) 65 (1968)+ 57 (1962) 43 (1931) 33 (2001) 15 71 (1975) 71 (1972) 67 (1908) 60 (1947) 45 (2015) 32 (1895) 16 82 (1894) 73 (1995) 67 (1963) 55 (1947) 41 (1953) 31 (1977)+ 17 74 (1957)+ 74 (2003) 67 (1964) 53 (1929) 35 (1922) 32 (1957) 18 80 (1932) 79 (1976) 64 (1941)+ 61 (1956) 34 (1934)+ 27 (1890) 19 71 (1935) 77 (1976) 66 (1914) 59 (1920) 35 (1962)+ 30 (1979) 20 71 (1941) 68 (1972)+ 69 (1914) 61 (1953) 35 (1966)+ 27 (1979) 21 71 (1965) 72 (1947) 66 (1940) 50 (1963) 31 (1966)+ 32 (1931) 22 71 (2007)+ 74 (1947) 71 (1930) 53 (1923) 36 (1954) 29 (1928) 23 73 (2007)+ 70 (1976) 62 (1917) 52 (1973) 34 (1998)+ 30 (2005) 24 72 (1917) 65 (1974)+ 61 (1923) 55 (1970) 33 (1944) 30 (1940) 25 76 (1931) 71 (1953) 58 (1938) 50 (1931) 34 (1962) 32 (1959) 26 72 (1929) 69 (1953) 62 (1979) 45 (1964)+ 41 (1962) 32 (1959) 27 73 (1941) 75 (1937) 63 (1898) 49 (1900) 36 (1962) 32 (1999) 28 74 (1917) 74 (1969) 64 (1905) 50 (1977)+ 34 (1914)+ 32 (1897) 29 75 (1975) 73 (2008) 65 (1905) 54 (1977) 35 (1932) 28 (1991) 30 75 (1975) 73 (2008) 50 (2000) 28 (1991) 31 July 17 Aug. 15,20 Sep. 7 Oct. 6 Nov. 6,7 Dec. 3 128-Y 82 (1894) 77 (1937) 76 (1976) 68 (2011) 50 (1977) 40 (1941) Record (1976) (1977) + Previous years than the one recorded with the same temperature. Page 14

Table 10: Lowest Minimum Temperature (F), 2017 Jan. Feb. Mar. Apr. May June Day -39 (2010) -45 (1893) -31 (1980) -8 (1970) 16 (1958) 27 (1964) 1-34 (2014) -39 (1996) -29 (1916) -7 (1899) 14 (1907) 29 (1910) 2-33 (1919) -38 (1895) -28 (1893) -3 (1975)+ 6 (1967) 29 (1928) 3-36 (1896) -37 (1895) -28 (1917) 1 (1970) 19 (1891) 31 (1964) 4-36 (1924) -40 (1936) -25 (1890) -4 (1936) 20 (1929) 33 (1897) 5-35 (1968) -42 (1936) -29 (1955) -10 (1979) 21 (1954) 30 (1953)+ 6-32 (1974)+ -38 (1936) -24 (1955)+ -9 (1936) 18 (1976) 31 (1901) 7-35 (1973) -40 (1899) -24 (1891) 5 (1997) 18 (1955) 34 (1938) 8-34 (1989)+ -38 (1994)+ -28 (1948) 10 (1997)+ 22 (1990)+ 33 (1915) 9-36 (1989) -33 (1899) -39 (1948) 13 (1973) 20 (1907) 35 (1903) 10-39 (1912) -36 (1914) -29 (1948) 7 (1940) 19 (1946) 35 (1900) 11-40 (2009) -36 (1936) -25 (1896) 0 (1950) 17 (1946) 38 (1969)+ 12-39 (1979)+ -33 (1916) -30 (1896) 1 (1950) 21 (1918) 36 (1969)+ 13-38 (2009)+ -35 (1936) -33 (1897) 5 (1893) 25 (1945)+ 36 (1993)+ 14-39 (1971) -51 (1936) -35 (1897) 7 (1921) 26 (1967)+ 38 (1961)+ 15-43 (1977) -42 (1936) -22 (2013) 11 (1961) 20 (1961) 37 (1976) 16-35 (1977) -30 (1956) -21 (1939) 9 (1953) 25 (1930)+ 39 (1915) 17-44 (1892) -38 (1966) -22 (1923) 16 (1953) 26 (1929) 37 (1926) 18-41 (1996) -38 (1966) -18 (1893) 4 (1928) 22 (1968) 34 (1940) 19-37 (1996) -34 (1939) -21 (1955) 17 (1966) 27 (1892) 31 (1940) 20-41 (1954) -28 (1966) -18 (1893) 11 (1945) 24 (1924) 36 (1902) 21-39 (1936) -33 (1914) -14 (1940) 17 (1909) 25 (1963) 40 (1959) 22-36 (1948)+ -32 (1914) -16 (1974)+ 11 (1918) 18 (1968) 35 (1967) 23-39 (1936) -33 (1955) -15 (1955) 18 (1919) 26 (1930) 39 (1958) 24-35 (1997) -36 (1950) -17 (1893) 15 (1958) 26 (1893) 39 (1926) 25-37 (1893) -37 (1897) -18 (1964) 18 (1933)+ 26 (1961) 37 (1929) 26-37 (1895) -28 (1962) -18 (1955) 11 (1909) 27 (1907) 41 (1925) 27-39 (1966) -34 (1897) -14 (1964) 15 (1909) 24 (1947) 39 (1923) 28-35 (1965) -28 (1980) -15 (1969) 9 (1958) 21 (1903) 40 (1959)+ 29-33 (1950)+ -14 (1975) 19 (1903) 29 (1964)+ 38 (1892) 30-45 (1996) -8 (1969) 23 (1968) 31 Jan.31 Feb. 15 Mar. 10 Apr. 6 May 3 June 1 128-Y -45 (1996) -51 (1936) -39 (1948) -10 (1979) 6 (1967) 27 (1964) Record + Previous years than the one recorded with the same temperature. Page 15

(Continued) Lowest minimum temperature July Aug. Sep. Oct. Nov. Dec. 39 (1954) 38 (1927) 34 (1946) 25 (1998)+ 0 (1951)+ -32 (1896) 40 (1945) 41 (1971)+ 32 (1946) 13 (1989) -5 (1935) -29 (1896) 39 (1967) 39 (1972) 32 (1974) 19 (1989) 1 (1936) -24 (1964)+ 38 (1967) 41 (1923) 34 (1903) 16 (1935) -7 (1919) -18 (1964) 41 (1965) 45 (1957)+ 33 (1929)+ 14 (1935) -8 (1951) -17 (1964) 42 (1908) 45 (1976) 31 (1934) 15 (1989) -2 (2003) -24 (2013) 42 (1891) 42 (1904) 33 (1992) 17 (1990) -13 (1936) -24 (2013)+ 41 (1922) 42 (1927) 33 (1956) 16 (1989) -9 (1892) -22 (2013)+ 43 (1968) 37 (1890) 30 (1917) 16 (1897) -3 (1933) -26 (1909) 41 (1945) 37 (1967) 29 (1917) 15 (1935)+ -2 (1995)+ -32 (1977) 38 (1890) 41 (1968) 26 (1955) 19 (1893) -1 (1935) -27 (1985) 38 (1926) 39 (1898) 29 (1902) 12 (1917) -7 (1986) -25 (1893) 39 (1950) 31 (1964) 26 (1923) 13 (1917) -11 (1919) -29 (1901) 42 (1930) 36 (1968) 25 (2011) 19 (1923) -11 (1919) -31 (1901) 41 (1912) 39 (1979) 29 (1949) 19 (1943) -20 (1911) -30 (1901) 41 (1912) 39 (2012)+ 27 (1973) 10 (1952) -14 (1933) -26 (1919) 41 (1994)+ 38 (1890) 23 (1959) 5 (1992) -12 (1891) -25 (1989)+ 42 (1891) 38 (1932) 18 (1929) 6 (1992) -9 (1894) -29 (1929) 41 (1951) 34 (2004) 25 (1938) 7 (1916) -16 (1896) -35 (1916) 41 (1944)+ 36 (1950) 25 (1973) 10 (1916) -13 (1921)+ -35 (1916) 39 (1947) 37 (1950) 20 (1913) 10 (1913) -18 (1978)+ -31 (1963) 45 (1925)+ 33 (1890) 20 (2012)+ 5 (1936) -24 (1896) -31 (1945) 43 (1953) 34 (1891) 25 (1976)+ 3 (1917) -29 (1985) -33 (1892) 44 (1920)+ 34 (1923) 23 (1951) 3 (1917) -28 (1996) -29 (1937) 44 (1900) 37 (1992) 23 (1893) 9 (1933) -28 (1996) -35 (1990)+ 43 (1962) 35 (1915) 11 (1893) -2 (1919) -24 (1985) -38 (1990) 41 (1925) 35 (1941) 20 (1893) 6 (1976)+ -30 (1985) -30 (1924) 43 (1925) 32 (1965)+ 21 (1945)+ -1 (1919) -30 (1893) -38 (1933) 42 (1925) 36 (1915) 22 (1945)+ 4 (1919) -30 (1896) -33 (1917) 41 (1971) 33 (1931) 23 (1920) 9 (1906) -29 (1896) -32 (1976) 41 (1903) 33 (1935) 10 (1906) -32 (1978)+ July 4,11,12 Aug. 13 Sep. 26 Oct. 26 Nov. 27,28,29 Dec. 26,28 38 (1967) 31 (1964) 11 (1893) -2 (1919) -30 (1985) -38 (1990) (1890) (1926) (1893) (1896) (1933) + Previous years than the one recorded with the same temperature. Page 16

Table 11: Growing Degree Days, Cooling Degree Days, Heating Degree Days, and Days Max Temperature was greater than or equal to 90. GDD 2017 Days Wheat Sugarbeets Potatoes Sunflower Dry Bean Corn Heating Cooling >= 90 (F) 32 (F) 40 (F) 45 (F) 50 (F) 55 (F) 50 86 (F) 65 (F) 65 (F) Jan 1674 Feb 1315 Mar 1197 Apr 352 212 145 91 48 45 666 May 714 484 363 271 196 271 309 2 Jun 1 1005 765 620 483 360 477 62 77 Jul 1 1150 902 747 596 459 590 17 145 Aug 1 1037 789 635 489 376 486 30 43 Sep 2 824 593 466 355 349 349 200 35 Oct 477 318 236 165 107 165 586 Nov 1218 Dec 1636 Total 5 5560 4063 3211 2450 1893 2382 8910 301 GDD 2016 Days Wheat Sugarbeets Potatoes Sunflower Dry Bean Corn Heating Cooling >= 90 (F) 32 (F) 40 (F) 45 (F) 50 (F) 55 (F) 50 86 (F) 65 (F) 65 (F) Jan 1704 Feb 1324 Mar 917 Apr 76 63 20 13 8 13 779 May 1 842 616 489 371 269 368 216 30 Jun 958 722 575 439 321 438 75 54 Jul 1137 889 735 583 439 580 25 138 Aug 1119 871 717 568 431 565 24 119 Sep 823 587 450 332 233 332 184 16 Oct 572 Nov 762 Dec 1640 Total 1 4953 3746 2985 2304 1700 2295 8219 356 Avg. 5 Yr 5 4984 3791 3027 2349 1776 2316 9148 N/A 10 Yr 6 N/A 3589 2965 2304 1736 2270 9089 N/A 30 Yr 8 N/A 3697 2907 2238 1650 2257 9266 N/A 128 Yr 10 N/A 3569 2790 2082 1449 2201 9365 N/A Page 17

Table 12: Date of last spring and first fall occurrence of 32 F and 28 F, length of period free of 32 F or lower and 28 F and lower. And Number of days minimum and maximum temperatures were < 32 F or < 0 F. Max Max Days Days <=32 F <=0 F Temp Temp Between Between <=32 <=0 F 2017 11 May 6 Sep 118 29 Apr 9 Oct 163 179 41 31 4 Year Last Spring Occurrence Low Temperatures <= 32 F <= 28 F First Fall Occurrence Last Spring Occurrence First Fall Occurrence Total No. of Day Minimum Temp. Longest Consecutive Days 2016 14 May 8 Oct 147 15 May 9 Oct 147 157 31 26 4 2015 29 May 29 Sep 123 18 May 30 Sep 135 165 44 15 2 2014 16 May 7 Oct 144 15 May 8 Oct 146 179 79 29 4 2013 11 May 13 Oct 155 11 May 15 Oct 157 201 74 52 3 2012 25 Apr 12 Sep 140 26 Apr 17 Sep 144 171 37 26 2 2011 2 May 14 Sep 135 2 May 14 Sep 135 176 48 21 1 2010 8 May 14 Oct 159 10 Apr 14 Oct 187 145 55 38 2 2009 22 May 28 Sep 129 24 Apr 8 Oct 167 180 68 30 3 2008 26 May 29 Sep 126 13 May 23 Oct 163 136 77 21 4 5 Yr Avg 16 May 30 Sep 137 11 May 8 Oct 150 176 54 31 3 10 Yr Avg 13 May 28 Sep 138 4 May 5 Oct 154 169 55 29 3 30 Yr Avg 10 May 25 Sep 138 27 Apr 5 Oct 160 180 53 30 3 128 Yr Avg 11 May 22 Sep 128 5 May 2 Oct 150 184 59 38 5 Page 18