WINONA, MINNESOTA

Monthly Total Growing Degree Days

(219067)

Base Temperature = 50 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201103
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 0.00 0.00 9.50 212.35 a 678.00 796.50 642.50 424.00 169.00 21.50 0.00 e 2953.35
1894 0.00 0.00 b 23.50 137.00 320.00 717.93 a 901.00 762.50 460.50 88.00 0.00 0.00 e 3410.43
1895 0.00 a 0.00 0.00 129.00 374.50 605.00 625.50 666.00 503.00 40.00 26.79 b 0.00 2969.79
1896 0.00 0.00 0.00 159.00 431.00 551.00 666.00 644.00 182.00 54.50 0.00 0.00 2687.50
1897 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
1898 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
1899 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
1900 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
1901 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
1902 0.00 0.00 6.50 70.00 382.00 447.50 680.50 516.50 267.50 80.00 21.50 0.00 a 2472.00
1903 0.00 0.00 8.50 47.50 348.50 414.50 636.50 477.50 308.00 77.00 13.50 0.00 2331.50
1904 0.00 a 0.00 a 0.00 52.00 292.50 468.00 573.50 523.00 349.50 123.00 9.00 0.00 2390.50
1905 0.00 0.00 17.00 37.50 187.50 491.50 615.00 631.50 369.00 108.50 a 0.00 0.00 d 2457.50
1906 0.00 0.00 b 0.00 93.50 243.00 481.61 b 631.22 b 677.00 445.50 79.00 7.50 0.00 a 2658.33
1907 0.00 0.00 0.00 z 7.50 98.00 447.50 639.00 525.00 319.50 65.50 0.00 0.00 2102.00
1908 0.00 0.00 1.00 135.00 325.50 523.50 734.50 0.00 z 602.00 163.00 0.00 0.00 2484.50
1909 0.00 0.00 0.00 4.00 315.00 564.50 733.00 802.00 341.50 134.50 24.50 0.00 2919.00
1910 0.00 0.00 117.50 200.00 200.00 652.00 834.50 668.50 350.00 213.50 0.00 0.00 3236.00
1911 0.00 0.00 17.50 83.00 524.00 744.83 a 759.50 588.50 382.50 69.00 0.00 0.00 3168.83
1912 0.00 0.00 0.00 105.50 357.00 486.50 727.00 595.00 430.00 123.50 4.50 0.00 2829.00
1913 0.00 0.00 1.00 144.50 288.00 767.00 754.50 732.00 441.00 160.50 22.00 0.00 3310.50
1914 0.00 0.00 0.00 a 131.50 381.00 568.00 816.50 671.50 399.00 258.00 25.00 0.00 3250.50
1915 0.00 0.00 0.00 273.50 159.50 403.50 571.50 474.00 365.50 127.00 24.50 0.00 2399.00
1916 0.00 0.00 0.50 31.00 284.50 406.00 911.00 716.00 336.50 127.00 12.00 0.00 2824.50
1917 0.00 0.00 0.00 43.00 173.50 402.50 702.00 525.50 291.00 26.00 0.00 0.00 2163.50
1918 0.00 0.00 25.50 15.00 407.50 531.50 645.50 683.50 179.00 148.00 23.50 0.00 2659.00
1919 0.00 0.00 7.00 40.34 a 246.00 633.50 784.00 605.00 481.03 a 112.50 0.00 0.00 2909.38
1920 0.00 0.00 27.50 28.50 283.00 615.00 633.00 562.50 476.50 260.50 0.00 0.00 2886.50
1921 0.00 0.00 25.00 178.50 403.52 a 706.00 853.50 653.50 462.50 101.00 0.00 0.00 a 3383.52
1922 0.00 0.00 3.00 34.50 470.50 610.50 606.50 701.00 466.00 186.50 20.00 0.00 3098.50
1923 0.00 0.00 0.00 74.00 338.00 675.50 817.00 601.00 402.50 86.50 2.50 0.00 2997.00
1924 0.00 0.00 0.00 60.00 114.50 444.00 602.50 578.50 254.00 239.50 14.00 0.00 2307.00
1925 0.00 0.00 a 24.50 146.00 238.00 545.00 664.00 683.50 506.50 29.00 0.00 0.00 2836.50
1926 0.00 0.00 0.00 78.50 405.00 440.00 724.00 658.50 360.50 96.50 0.00 0.00 2763.00
1927 0.00 0.00 0.00 z 50.50 0.00 z 0.00 z 0.00 z 0.00 z 408.50 f 181.35 a 1.00 0.00 232.85
1928 0.00 0.00 31.50 75.58 d 454.00 469.50 717.65 a 685.00 309.00 169.00 0.00 0.00 2911.23
1929 0.00 0.00 a 0.00 108.50 254.50 514.00 737.11 d 625.50 262.00 i 110.50 0.00 e 0.00 2350.11
1930 0.00 b 5.00 9.00 133.50 0.00 z 560.50 0.00 z 0.00 z 0.00 z 158.00 51.50 0.00 a 917.50
1931 0.00 c 0.00 a 0.00 150.00 302.50 783.50 896.50 732.50 619.00 237.31 b 50.50 0.00 3771.81
1932 0.00 0.00 1.03 a 71.00 394.00 749.00 812.00 698.00 315.00 93.50 4.14 a 0.00 3137.67
1933 0.00 0.00 0.50 92.50 356.50 a 939.50 893.00 686.00 562.76 a 81.00 23.50 0.00 3635.26
1934 0.00 0.00 0.00 93.50 649.45 a 789.00 0.00 z 672.00 381.50 259.00 7.00 0.00 2851.45
1935 0.00 a 0.00 6.00 92.00 208.50 478.45 a 915.50 702.50 418.00 117.50 0.00 0.00 2938.45
1936 0.00 0.00 2.00 44.50 523.00 546.00 959.00 851.50 518.50 113.00 2.00 1.50 3561.00
1937 0.00 0.00 0.00 55.00 369.00 540.50 822.50 845.00 475.50 111.00 0.00 0.00 3218.50
1938 0.00 0.00 45.00 152.00 323.00 573.00 720.00 733.00 414.00 277.00 48.50 0.00 3285.50
1939 0.00 0.00 24.00 126.00 540.00 681.50 825.00 683.50 577.00 139.50 1.50 0.00 3598.00
1940 0.00 0.00 0.00 58.50 305.00 630.50 840.50 633.00 484.50 185.50 11.00 0.00 3148.50
1941 0.00 0.00 0.00 209.00 480.50 629.50 770.00 714.50 479.50 134.00 18.50 0.00 3435.50
1942 0.00 0.00 6.50 234.50 269.00 562.76 a 684.50 677.50 327.50 166.00 12.00 0.00 2940.26
1943 0.00 0.00 30.00 76.00 245.50 664.00 789.47 a 684.50 286.00 100.00 0.00 0.00 h 2875.47
1944 2.50 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 40.96 d 0.00 a 43.46
1945 0.00 0.00 83.00 97.50 214.50 471.00 712.50 0.00 z 449.50 100.00 7.50 0.00 2135.50
1946 0.00 0.00 45.00 155.50 234.00 512.00 737.50 567.00 311.50 161.50 0.00 0.00 2724.00
1947 0.00 0.00 0.00 27.00 170.50 488.00 720.00 892.50 476.90 a 342.00 3.62 a 0.00 3120.52
1948 0.00 0.00 9.00 193.00 316.50 563.00 809.50 735.50 531.00 91.50 19.50 0.00 3268.50
1949 0.00 0.00 a 0.00 125.00 424.00 739.00 892.50 822.50 308.50 232.50 a 17.00 0.00 3561.00
1950 0.00 0.00 0.00 18.00 311.50 597.00 674.50 618.28 d 448.50 275.00 18.00 0.00 a 2960.78
1951 0.00 0.00 0.00 a 54.31 a 478.00 531.50 732.24 b 639.00 300.52 a 164.50 0.50 0.00 j 2900.57
1952 0.00 0.00 a 1.50 169.00 313.50 650.50 805.00 660.00 423.50 66.50 15.00 0.00 3104.50
1953 0.00 a 0.00 b 2.50 21.50 333.50 682.50 767.00 786.00 430.00 319.50 53.00 0.00 3395.50
1954 0.00 0.00 0.00 129.50 224.50 726.00 781.00 644.50 363.50 86.50 6.00 0.00 2961.50
1955 0.00 0.00 0.00 133.00 391.50 486.72 a 885.00 810.00 394.00 132.50 0.00 0.00 3232.72
1956 0.00 0.00 0.00 2.50 266.00 656.50 628.00 639.50 273.50 192.00 33.00 0.00 2691.00
1957 0.00 0.00 0.00 129.83 a 205.50 515.50 778.00 590.03 a 295.50 56.50 g 1.50 0.00 2515.86
1958 0.00 0.50 0.00 70.50 290.50 395.00 619.00 619.00 379.00 166.88 a 9.64 b 0.00 2550.03
1959 0.00 0.00 0.00 49.00 401.97 a 588.00 657.00 743.50 404.00 26.00 0.00 0.00 2869.47
1960 0.00 0.00 3.50 103.50 296.00 414.50 643.50 655.50 422.00 115.00 0.00 0.00 2653.50
1961 0.00 0.00 1.50 8.50 208.00 543.00 667.50 657.50 351.50 149.00 0.00 0.00 2586.50
1962 0.00 0.00 0.00 84.50 403.00 500.50 576.50 620.50 259.00 175.50 0.00 6.00 2625.50
1963 0.00 0.00 8.50 91.00 206.50 565.38 d 738.00 596.00 392.00 335.50 6.00 0.00 2938.88
1964 0.00 0.00 0.00 76.50 403.00 559.50 806.50 585.00 316.50 108.00 58.50 0.00 2913.50
1965 0.00 0.00 0.00 20.50 365.00 500.00 628.55 b 585.00 221.50 117.00 10.00 0.00 2447.55
1966 0.00 0.00 10.50 20.00 183.50 574.00 783.00 592.50 372.00 99.00 1.50 0.00 2636.00
1967 0.00 0.00 17.00 57.50 177.50 587.50 652.50 563.00 347.00 114.50 0.00 0.00 b 2516.50
1968 0.00 0.00 33.07 a 85.00 163.00 523.50 629.50 608.50 287.50 148.00 6.00 0.00 2484.07
1969 0.00 0.00 0.00 82.00 313.62 a 334.14 a 670.00 689.00 338.57 b 86.50 0.00 0.00 2513.83
1970 0.00 0.00 0.00 b 111.50 290.88 a 587.50 763.50 668.64 b 347.00 126.50 0.00 0.00 a 2895.52
1971 0.00 0.00 0.00 87.50 153.00 660.00 598.00 562.50 370.00 208.50 0.00 0.00 2639.50
1972 0.00 0.00 0.00 23.50 377.00 460.00 565.00 599.00 306.50 62.50 0.00 0.00 2393.50
1973 0.00 0.00 6.00 45.50 137.50 557.00 704.00 628.00 317.50 208.00 0.00 0.00 2603.50
1974 0.00 0.00 0.00 z 77.00 163.00 406.50 747.00 512.00 195.50 64.50 9.00 0.00 2174.50
1975 0.00 0.00 0.00 7.50 299.00 475.50 721.00 601.00 177.50 108.50 27.50 0.00 2417.50
1976 0.00 0.00 0.00 72.00 198.92 a 0.00 z 717.50 623.50 325.00 88.50 0.00 z 0.00 a 2025.42
1977 0.00 c 0.00 b 18.50 256.03 a 576.50 530.00 810.50 516.00 343.00 25.50 9.00 0.00 a 3085.03
1978 0.00 0.00 2.00 30.00 295.00 519.00 615.00 590.50 453.50 41.50 11.50 0.00 2558.00
1979 0.00 0.00 0.00 30.50 181.00 493.97 a 711.50 589.00 403.00 72.00 5.00 0.00 2485.97
1980 0.00 0.00 0.00 116.50 356.50 518.50 777.50 633.00 310.00 62.50 2.00 0.00 2776.50
1981 0.00 1.00 12.00 85.00 228.50 534.00 60.00 z 650.50 311.79 b 53.00 16.55 a 0.00 1892.34
1982 0.00 0.00 0.00 45.00 350.50 374.50 727.00 613.50 305.00 85.50 0.00 0.50 2501.50
1983 0.00 0.00 5.50 0.00 z 171.00 577.50 886.00 0.00 z 0.00 z 0.00 z 17.31 d 0.00 1657.31
1984 0.00 c 0.00 c 0.00 0.00 z 266.00 655.00 718.50 0.00 z 379.00 182.38 a 0.00 z 0.00 a 2200.88
1985 0.00 a 0.00 3.00 228.50 0.00 z 562.50 794.50 605.53 a 0.00 z 0.00 z 0.00 z 0.00 2194.03
1986 0.00 0.00 17.50 124.00 0.00 z 589.50 717.50 494.50 281.50 64.50 0.00 0.00 2289.00
1987 0.00 0.00 22.50 193.00 425.00 669.50 812.50 0.00 z 372.50 59.50 28.50 0.00 2583.00
1988 0.00 b 0.00 0.52 a 103.00 0.00 z 775.50 889.50 828.50 0.00 z 95.50 2.00 0.00 b 2694.52
1989 0.00 0.00 10.00 i 97.50 0.00 z 592.50 838.00 717.50 418.00 204.50 0.00 0.00 2868.00
1990 0.00 0.00 19.12 a 156.00 255.00 599.00 746.50 685.50 510.50 108.00 42.50 0.00 3122.12
1991 0.00 0.00 12.50 165.50 461.50 0.00 z 739.00 724.00 327.00 72.50 0.00 0.00 2502.00
1992 0.00 0.00 0.00 58.00 385.00 520.50 555.50 556.50 351.50 155.50 0.00 0.00 b 2582.50
1993 0.00 z 0.00 0.00 45.50 309.50 525.50 706.50 720.00 234.50 89.50 1.00 0.00 2632.00
1994 0.00 0.00 0.00 z 100.00 372.00 686.00 697.50 591.50 494.00 159.00 5.50 0.00 3105.50
1995 0.00 0.00 28.50 12.00 291.00 691.50 777.00 851.50 367.50 131.50 0.00 0.00 3150.50
1996 0.00 a 0.00 0.00 47.50 224.50 594.00 667.00 690.00 441.00 149.00 0.00 0.00 2813.00
1997 0.00 0.00 7.00 81.00 195.00 643.50 701.00 614.50 455.50 230.50 0.00 0.00 2928.00
1998 0.00 b 0.00 39.50 136.00 548.00 546.00 770.00 718.50 582.00 148.50 11.50 14.00 3514.00
1999 0.00 a 0.00 a 19.50 95.50 401.50 584.50 876.00 658.00 408.00 124.00 42.50 0.00 a 3209.50
2000 0.00 4.66 a 53.00 116.50 398.35 a 568.50 743.00 724.50 417.50 215.50 24.50 0.00 3266.01
2001 0.00 0.00 0.00 165.54 b 393.50 601.00 816.00 780.00 368.50 111.00 108.50 4.98 c 3349.02
2002 0.00 0.00 0.00 153.50 275.00 670.00 872.50 691.50 506.50 74.50 2.50 0.00 3246.00
2003 0.00 0.00 23.00 147.50 296.50 574.00 754.50 812.00 441.50 180.00 2.50 0.00 3231.50
2004 0.00 0.00 19.50 154.50 335.50 517.00 689.00 548.00 535.00 123.50 13.00 0.00 2935.00
2005 0.00 0.00 17.50 169.50 275.00 725.50 809.50 683.50 540.50 190.00 6.50 0.00 3417.50
2006 0.00 0.00 1.00 174.00 361.50 622.50 869.50 707.00 309.50 110.50 23.00 0.00 3178.50
2007 0.00 0.00 40.30 a 144.00 475.50 657.50 761.00 697.50 486.50 242.00 0.50 0.00 3504.80
2008 0.00 0.00 0.00 96.50 251.00 581.50 766.00 684.50 485.00 133.50 58.50 0.00 3056.50
2009 0.00 0.00 15.00 115.50 352.00 583.50 608.50 646.50 495.00 2.00 z 0.00 z 0.00 z 2816.00
2010 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
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
Period of Record Statistics
MEAN 0.02 0.10 9.90 95.81 315.23 572.85 738.83 657.00 388.51 135.95 11.87 0.25 2936.44
S.D. 0.24 0.65 17.67 59.42 107.95 104.12 92.17 85.81 95.00 67.98 17.44 1.53 364.73
SKEW 10.39 7.04 3.21 0.57 0.45 0.43 0.10 0.34 0.08 0.85 2.45 7.53 0.09
MAX 2.50 5.00 117.50 273.50 649.45 939.50 959.00 892.50 619.00 342.00 108.50 14.00 3771.81
MIN 0.00 0.00 0.00 2.50 98.00 334.14 555.50 474.00 177.50 25.50 0.00 0.00 2163.50
NO YRS 111 112 107 109 105 108 107 104 105 107 108 109 87