WILLMAR RTC, MINNESOTA

Monthly Total Growing Degree Days

(219004)

Base Temperature = 40 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201202
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1893 0.00 z 0.00 z 0.50 41.50 441.50 916.00 1000.50 831.00 452.00 i 218.50 61.50 0.00 3511.00
1894 0.00 0.00 b 33.58 a 233.50 527.00 905.00 1030.50 924.00 595.50 197.00 1.00 0.00 4447.08
1895 0.00 3.50 14.50 336.00 524.50 722.00 872.00 842.00 629.46 b 154.50 33.00 0.00 a 4131.46
1896 0.00 5.50 4.50 232.50 645.00 798.50 885.50 853.50 454.50 173.00 0.00 0.00 4052.50
1897 0.00 0.00 a 10.00 156.50 464.50 682.50 993.50 758.00 756.50 310.00 17.50 0.00 4149.00
1898 0.00 0.00 17.00 n 222.00 e 500.65 a 800.50 940.85 a 857.50 593.00 132.50 7.00 0.00 4054.00
1899 0.00 0.00 0.00 206.90 a 471.00 766.67 c 953.50 889.00 508.00 270.00 39.50 0.00 4104.56
1900 2.00 0.00 5.37 e 326.00 605.00 797.50 920.50 1080.00 592.20 e 482.50 16.50 0.00 4827.57
1901 0.00 0.00 3.50 249.00 580.50 767.00 1087.50 959.50 374.00 g 288.00 2.50 0.00 3937.50
1902 0.00 7.28 c 59.00 155.50 567.00 667.00 706.00 g 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1455.78
1903 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1904 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1905 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1906 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1908 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1909 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1910 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1911 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1912 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1913 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1914 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1915 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1916 0.00 z 0.00 z 0.00 z 134.00 453.00 636.50 1139.50 900.00 540.00 227.85 a 52.00 0.00 a 4082.85
1917 0.00 0.00 7.50 69.00 408.00 651.00 993.50 799.80 a 565.00 112.50 56.50 0.00 3662.80
1918 0.00 0.50 111.00 142.00 602.50 768.50 935.00 901.50 430.00 330.00 67.00 0.00 4288.00
1919 0.00 0.00 21.50 176.00 506.00 846.50 1012.00 874.00 685.00 172.50 1.50 0.00 4295.00
1920 0.00 0.00 37.89 d 68.00 468.00 710.50 877.00 797.00 646.50 426.00 0.00 0.00 4030.89
1921 0.00 4.50 29.00 247.50 519.50 920.50 1025.50 840.00 594.00 253.00 2.00 0.00 4435.50
1922 0.00 0.00 0.00 136.50 570.00 808.00 817.00 919.00 706.00 333.00 44.50 0.00 4334.00
1923 0.00 0.00 0.50 145.50 488.50 818.00 1017.50 810.50 494.00 f 224.50 15.50 0.00 3520.50
1924 0.00 a 0.00 0.00 104.50 216.00 596.00 802.50 772.50 409.50 307.50 11.50 0.00 3220.00
1925 0.00 a 0.00 51.00 333.50 379.50 731.50 851.00 923.50 618.50 44.00 1.50 0.00 j 3934.00
1926 0.00 0.00 20.00 196.50 598.50 653.00 968.50 859.00 477.00 217.00 11.50 0.00 4001.00
1927 0.00 0.00 24.50 184.50 387.50 717.50 830.50 782.00 654.00 313.50 1.50 0.00 3895.50
1928 0.00 0.00 54.50 108.50 630.50 639.00 956.00 903.50 512.50 301.00 30.00 0.00 4135.50
1929 0.00 0.00 20.50 197.50 419.00 743.00 1006.50 927.50 534.50 277.50 8.50 0.00 4134.50
1930 0.00 20.50 19.00 260.00 533.00 791.00 1009.57 a 990.50 592.50 288.50 68.00 0.00 4572.57
1931 0.00 1.00 0.50 225.00 462.50 961.00 1063.50 895.00 813.50 383.00 68.50 0.00 4873.50
1932 0.00 12.95 a 7.50 199.50 562.50 898.00 1017.00 930.50 574.50 217.00 16.50 0.00 4435.95
1933 0.00 0.00 5.50 144.50 476.88 a 1061.00 1080.00 884.00 791.00 234.50 14.00 0.00 4691.38
1934 0.00 0.00 9.00 165.50 859.00 916.50 1058.50 853.50 444.50 365.50 33.00 0.00 4705.00
1935 0.00 0.00 44.50 143.50 403.50 660.50 1150.50 934.00 611.00 237.00 0.00 0.00 4184.50
1936 0.00 0.00 0.00 115.50 701.50 779.00 1197.00 1010.50 712.50 237.00 1.50 0.00 4754.50
1937 0.00 0.00 1.00 153.50 586.50 742.00 1046.50 1094.00 652.00 202.50 37.00 0.00 4515.00
1938 0.00 0.00 87.00 284.50 445.50 817.00 990.00 1035.00 664.00 480.00 53.00 0.00 4856.00
1939 0.00 0.00 89.50 201.50 718.00 837.00 1016.50 928.50 703.50 231.00 28.50 17.50 4771.50
1940 0.00 0.00 0.00 135.50 512.50 829.00 1076.00 845.50 737.00 419.00 23.00 0.00 4577.50
1941 0.00 0.00 7.00 333.50 712.00 805.00 1020.00 952.73 a 641.50 321.00 26.00 14.50 4833.23
1942 0.00 0.00 17.00 363.50 432.50 727.00 915.50 917.50 515.00 349.00 32.00 0.00 4269.00
1943 0.00 a 0.00 45.50 195.50 427.00 849.00 1051.50 964.00 526.50 290.50 0.00 0.00 4349.50
1944 7.75 a 0.00 0.00 101.50 653.50 871.00 947.50 931.00 632.00 344.50 66.00 0.00 4554.75
1945 0.00 0.00 156.00 148.50 389.00 616.00 919.50 948.00 560.17 a 256.50 11.00 0.00 4004.67
1946 0.00 0.00 110.50 319.50 440.50 796.00 982.00 838.50 585.50 258.50 6.50 0.00 4337.50
1947 0.00 0.00 10.00 105.00 403.00 705.50 1000.00 1129.50 643.00 531.00 36.00 0.00 4563.00
1948 0.00 0.00 12.00 299.00 548.50 794.50 1066.50 953.00 783.00 319.00 45.50 0.00 4821.00
1949 0.00 0.00 1.00 212.00 667.00 878.50 1061.00 1025.00 528.50 335.50 52.00 0.00 4760.50
1950 0.00 0.00 1.00 60.50 443.50 831.00 900.00 805.50 647.50 362.50 25.50 0.00 4077.00
1951 0.00 0.00 0.00 b 113.00 661.33 a 695.00 945.00 833.00 478.97 a 282.10 a 9.50 3.50 4021.40
1952 0.00 0.00 0.00 298.50 582.50 868.00 1017.50 886.00 687.50 204.00 64.14 a 0.00 4608.14
1953 0.00 0.00 18.00 98.50 530.50 861.00 968.50 1005.43 a 654.00 495.50 85.00 0.00 4716.43
1954 0.00 a 3.00 1.00 225.00 411.78 a 884.50 1032.00 893.50 589.00 236.00 72.50 0.00 4348.28
1955 0.00 0.00 21.00 389.50 724.50 811.50 1134.00 1047.50 613.50 335.00 2.00 0.00 5078.50
1956 0.00 0.00 0.00 69.00 544.50 954.50 885.00 908.00 551.00 478.50 54.00 0.00 a 4444.50
1957 0.00 0.00 6.00 249.00 487.00 753.50 1106.50 894.00 487.50 f 275.90 a 12.50 p 0.00 g 3771.90
1958 0.00 8.50 10.50 214.00 641.50 652.50 890.73 a 972.00 673.50 385.50 60.50 0.00 4509.23
1959 0.00 0.00 27.00 189.00 610.00 918.00 1009.50 1044.50 648.00 147.00 2.50 2.00 4597.50
1960 0.00 0.00 3.50 181.50 550.50 744.50 999.50 972.00 662.00 341.00 20.50 0.00 4475.00
1961 0.00 4.50 31.00 72.00 480.50 869.50 950.00 1015.00 602.50 337.50 12.50 0.00 4375.00
1962 0.00 0.00 0.00 181.00 632.00 779.00 875.50 934.00 553.50 416.50 28.50 27.50 4427.50
1963 2.00 0.00 93.52 a 259.00 505.00 908.00 1016.50 925.00 705.50 597.50 61.00 0.00 5073.02
1964 0.00 0.00 4.00 235.00 678.00 865.50 1091.50 859.50 606.00 315.50 111.50 0.00 4766.50
1965 0.00 0.00 0.00 118.00 568.50 809.50 955.50 896.50 364.00 349.00 47.00 0.00 4108.00
1966 0.00 0.00 58.50 92.50 441.00 839.50 1099.50 848.50 628.50 288.00 2.50 0.00 4298.50
1967 0.00 0.00 43.00 177.50 409.50 774.00 934.50 865.50 625.00 277.00 26.50 0.00 4132.50
1968 0.00 0.00 146.50 270.50 415.00 826.00 947.00 933.50 624.00 337.38 a 23.00 0.00 4522.88
1969 0.00 0.00 0.00 241.00 605.50 627.00 972.50 1015.50 661.00 204.00 58.00 0.00 4384.50
1970 0.00 0.00 0.00 172.00 560.00 909.00 1037.50 959.00 643.00 283.50 0.50 0.00 4564.50
1971 0.00 0.00 14.00 258.00 497.50 906.00 847.50 916.00 640.00 381.50 16.50 0.00 4477.00
1972 0.00 0.00 5.50 122.00 630.00 821.00 914.50 941.00 579.50 230.50 9.00 0.00 4253.00
1973 0.00 0.00 46.00 163.50 514.50 875.50 970.50 988.50 586.50 458.50 23.50 0.00 4627.00
1974 0.00 0.00 0.00 240.00 445.50 811.50 1109.00 821.50 540.00 345.50 34.00 0.00 4347.00
1975 0.00 0.00 0.00 75.00 648.50 808.00 1088.50 932.50 536.00 348.00 112.50 0.00 4549.00
1976 0.00 7.00 50.00 306.50 539.50 909.00 1046.50 989.50 632.00 212.00 12.50 0.00 4704.50
1977 0.00 0.00 39.00 418.00 816.00 844.00 1030.50 818.00 634.50 255.00 55.00 0.00 4910.00
1978 0.00 0.00 24.50 129.00 631.50 828.00 956.50 960.50 787.50 310.50 84.00 0.00 u 4712.00
1979 0.00 z 0.00 z 0.00 e 114.50 434.50 810.00 970.00 850.50 687.00 246.00 23.00 0.00 4135.50
1980 0.00 0.00 2.00 311.50 688.00 825.00 1025.50 887.50 601.00 220.50 44.00 0.00 4605.00
1981 1.00 20.00 80.00 293.50 524.50 775.00 955.50 864.00 608.00 252.00 94.50 0.00 4468.00
1982 0.00 0.00 8.00 185.50 590.50 596.50 939.50 858.50 553.00 254.50 12.50 7.00 4005.50
1983 0.00 2.00 19.00 105.00 418.00 759.00 1031.50 1083.00 619.00 215.00 42.50 0.00 4294.00
1984 0.00 0.00 0.50 179.00 459.00 821.50 954.50 964.00 436.50 329.50 25.00 0.00 4169.50
1985 0.00 0.00 31.00 318.00 695.00 692.00 937.50 741.50 518.00 155.50 4.50 0.00 4093.00
1986 0.00 0.00 43.50 231.50 562.00 877.50 1014.50 812.00 557.00 265.50 11.00 0.00 4374.50
1987 0.00 0.00 57.50 422.00 697.50 931.50 1052.00 855.00 634.00 139.00 76.50 0.00 4865.00
1988 0.00 0.00 12.50 181.50 799.50 1023.50 1118.50 1022.50 616.00 176.50 8.50 0.00 4959.00
1989 0.00 0.00 13.50 175.00 547.00 803.50 1086.00 928.00 569.50 285.50 7.50 0.00 4415.50
1990 0.00 0.00 32.50 249.00 459.50 847.50 935.50 875.00 685.50 192.50 63.50 0.50 4341.00
1991 0.00 0.00 21.50 239.50 627.50 933.00 962.50 940.00 557.50 211.50 0.00 0.00 4493.00
1992 0.00 0.00 16.50 91.50 631.50 747.00 754.50 767.50 535.50 242.50 0.00 0.00 3786.50
1993 0.00 0.00 15.50 120.00 512.50 690.00 891.00 904.00 417.50 192.50 1.00 0.00 3744.00
1994 0.00 0.00 8.00 162.00 634.50 846.50 896.50 824.50 679.50 302.50 39.50 0.00 4393.50
1995 0.00 0.00 48.50 80.00 465.50 922.00 967.00 992.00 555.50 204.50 0.00 0.00 4235.00
1996 0.00 0.00 0.00 83.50 421.50 844.50 910.00 873.00 571.50 265.50 4.00 0.00 3973.50
1997 0.00 0.00 1.50 155.00 385.00 920.00 951.50 859.00 680.50 340.50 3.50 0.00 4296.50
1998 0.00 7.50 42.50 266.00 722.00 720.50 987.50 952.50 766.00 309.00 31.50 19.50 4824.50
1999 0.00 0.00 z 32.50 204.50 598.50 801.00 1048.50 889.00 545.50 225.00 100.50 0.50 4445.50
2000 0.00 10.50 112.50 171.00 616.00 746.50 961.00 947.00 567.00 338.50 52.00 0.00 4522.00
2001 0.00 0.00 0.00 185.00 598.50 825.00 1029.50 998.00 598.50 254.00 189.50 0.00 4678.00
2002 0.00 0.00 0.00 164.50 398.00 909.00 1075.50 884.50 686.00 117.50 1.50 0.00 4236.50
2003 0.00 0.00 44.50 275.00 497.00 787.00 980.00 998.50 582.00 337.00 4.00 0.00 4505.00
2004 0.00 0.00 52.50 250.00 441.00 705.50 914.50 724.50 753.62 a 283.50 34.00 0.00 4159.12
2005 0.00 1.00 33.50 280.00 452.50 922.50 1034.50 899.00 725.50 317.50 57.50 0.00 4723.50
2006 0.00 0.00 20.00 319.50 606.50 864.50 1092.50 937.50 534.00 215.50 55.00 0.00 4645.00
2007 0.00 0.00 70.50 254.50 672.00 905.00 1065.00 893.00 661.50 351.50 23.50 0.00 4896.50
2008 0.00 0.00 0.00 128.00 452.50 776.00 1007.50 921.50 623.50 245.00 75.00 0.00 4229.00
2009 0.00 0.00 27.00 185.00 541.00 782.00 857.00 833.00 735.00 98.00 77.50 0.00 4135.50
2010 0.00 0.00 36.00 377.00 558.50 812.50 694.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1784.00
2011 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2012 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.12 1.19 25.80 198.90 541.14 805.74 987.60 909.95 608.35 282.91 33.10 0.93 4409.02
S.D. 0.82 3.58 32.45 85.15 109.61 92.78 81.51 79.14 88.30 94.83 32.42 4.06 327.58
SKEW 8.33 3.80 1.87 0.45 0.29 -0.13 -0.18 0.22 -0.16 0.53 1.56 4.91 -0.48
MAX 7.75 20.50 156.00 422.00 859.00 1061.00 1197.00 1129.50 813.50 597.50 189.50 27.50 5078.50
MIN 0.00 0.00 0.00 41.50 216.00 596.00 754.50 724.50 364.00 44.00 0.00 0.00 3220.00
NO YRS 102 101 103 105 105 105 103 103 99 103 102 100 93