MITCHELL 2 N, SOUTH DAKOTA

Monthly Total Growing Degree Days

(395671)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200303
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 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
1894 0.00 z 0.00 z 0.00 z 0.00 z 361.50 648.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1009.50
1895 0.00 z 4.00 s 17.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 w 0.00 17.00
1896 0.00 a 1.00 0.00 131.50 373.50 506.50 655.00 608.00 205.00 45.50 0.00 0.00 2526.00
1897 0.00 0.00 0.00 71.00 248.50 449.00 723.00 485.15 a 579.31 a 182.00 5.50 0.00 2743.46
1898 0.00 0.00 7.50 50.50 183.00 527.00 634.50 630.50 394.50 36.50 0.00 0.00 2464.00
1899 0.00 0.00 0.00 a 90.50 244.50 509.00 671.00 687.50 302.50 91.00 21.00 0.00 2617.00
1900 0.00 0.00 15.50 183.50 394.00 583.00 584.35 a 803.50 400.50 241.50 6.00 0.00 3211.85
1901 0.00 0.00 9.50 135.00 319.50 585.00 906.23 a 729.53 a 324.00 141.50 2.00 0.00 e 3152.27
1902 0.00 0.00 10.16 b 66.50 364.25 a 422.00 671.00 556.00 225.50 104.00 1.00 0.00 2420.41
1903 0.00 a 0.00 4.50 72.50 300.00 471.50 668.00 597.50 355.50 116.00 7.50 0.00 2593.00
1904 0.00 0.00 2.50 36.00 274.50 476.50 612.50 582.50 365.00 174.50 15.00 0.00 a 2539.00
1905 0.00 0.00 a 41.50 68.00 171.50 468.00 607.71 b 739.50 447.93 a 125.50 3.62 a 0.00 2673.26
1906 0.00 0.00 0.00 106.55 a 348.50 505.00 655.50 697.00 437.07 a 114.50 2.07 a 0.00 2866.19
1907 0.00 b 0.00 a 29.45 a 11.00 117.00 447.00 649.50 617.93 a 283.00 70.00 0.00 0.00 2224.88
1908 0.00 0.00 7.00 164.48 a 246.00 426.50 672.00 550.50 583.50 122.00 5.69 a 0.00 a 2777.67
1909 0.00 b 0.00 0.00 16.50 256.50 511.55 a 670.50 785.00 330.00 102.00 36.50 0.00 2708.55
1910 0.00 0.00 111.50 170.00 159.50 532.50 709.50 543.00 315.50 239.00 0.00 0.00 2780.50
1911 0.00 0.00 25.00 73.50 407.00 678.00 645.50 530.00 366.72 a 44.50 0.00 0.00 2770.22
1912 0.00 a 0.00 0.00 88.00 314.00 464.00 632.00 545.50 287.59 a 102.00 7.00 0.00 2440.09
1913 0.00 b 0.00 0.00 122.50 239.00 620.17 a 669.08 a 758.50 403.00 145.00 0.00 0.00 2957.26
1914 0.00 0.00 0.50 107.50 343.58 a 595.50 809.50 596.00 358.00 155.00 a 22.50 0.00 2988.08
1915 0.00 0.00 0.00 249.50 170.50 b 364.00 502.00 451.50 276.00 82.00 16.50 0.00 a 2112.00
1916 0.00 0.00 1.00 25.34 a 237.50 376.00 899.50 635.50 315.00 61.00 4.00 0.00 2554.84
1917 0.00 0.00 2.50 11.00 176.50 414.00 739.19 b 552.50 299.00 29.00 10.00 0.00 2233.69
1918 0.00 0.00 33.07 a 5.50 309.00 556.00 636.00 668.00 187.00 169.50 5.50 0.00 2569.57
1919 0.00 0.00 3.50 50.00 262.50 581.00 812.00 645.00 423.50 71.00 0.00 z 0.00 2848.50
1920 0.00 0.00 14.47 a 0.00 296.00 585.00 729.00 652.00 477.00 269.00 0.00 0.00 3022.47
1921 0.00 1.50 24.36 c 129.00 347.00 756.50 854.00 683.50 431.00 139.50 0.00 0.00 3366.36
1922 0.00 0.00 2.50 60.00 374.50 659.46 b 672.00 782.00 575.50 178.00 12.50 0.00 3316.46
1923 0.00 a 0.00 3.44 d 90.50 317.75 e 591.50 826.50 637.00 449.50 121.50 7.00 0.00 3044.69
1924 0.00 0.00 0.00 110.00 151.00 442.00 651.50 676.50 320.50 230.00 10.00 0.00 2591.50
1925 0.00 0.00 28.50 206.00 289.00 575.00 748.50 805.00 578.00 14.50 0.00 0.00 a 3244.50
1926 0.00 0.00 12.50 152.00 508.00 541.00 821.50 a 737.50 340.34 a 154.00 0.00 0.00 3266.84
1927 0.00 0.00 a 7.50 80.00 206.50 511.50 684.00 596.50 498.50 192.50 0.00 0.00 2777.00
1928 0.00 0.00 33.00 38.50 384.50 436.50 744.00 724.00 351.50 171.00 2.00 0.00 2885.00
1929 0.00 0.00 1.00 81.50 271.00 517.00 797.50 739.00 275.50 134.50 0.00 0.00 2817.00
1930 0.00 4.50 6.00 135.00 260.92 a 544.50 935.00 798.77 a 418.00 170.00 4.50 0.00 3277.18
1931 0.00 0.00 0.00 a 165.50 288.50 831.50 900.50 789.43 b 604.50 184.00 30.00 0.00 3793.93
1932 0.00 1.00 4.50 86.50 380.00 643.50 852.50 786.50 415.00 105.50 0.00 0.00 3275.00
1933 0.00 0.00 7.23 a 97.50 296.00 911.50 847.50 660.00 591.50 138.00 6.50 0.00 3555.73
1934 0.00 0.00 9.00 137.00 696.00 716.00 916.00 738.00 319.00 246.00 8.50 0.00 3785.50
1935 0.00 0.00 35.50 73.50 167.50 490.50 995.50 777.50 470.50 113.00 0.00 0.00 3123.50
1936 0.00 0.00 4.13 a 86.00 462.50 654.50 1130.00 903.50 563.00 120.50 1.00 0.00 3925.13
1937 0.00 0.00 0.00 61.50 369.00 530.00 880.00 938.00 482.00 135.00 15.00 0.00 3410.50
1938 0.00 0.00 2.50 175.00 254.50 605.50 849.00 897.97 a 528.00 325.50 3.50 0.00 3641.47
1939 0.00 0.00 62.00 121.50 546.50 590.50 891.50 737.00 565.50 136.50 2.50 0.00 3653.50
1940 0.00 0.00 0.00 61.00 312.50 595.00 904.00 680.50 574.00 279.50 0.00 0.00 3406.50
1941 0.00 0.00 0.00 a 131.50 493.50 602.00 861.50 813.50 465.00 140.50 13.50 6.50 3527.50
1942 0.00 0.00 8.50 212.50 251.50 562.50 761.50 722.00 330.50 195.50 4.00 0.00 3048.50
1943 0.00 0.00 61.48 a 134.00 254.50 577.50 860.00 787.50 375.00 163.50 0.00 a 0.00 3213.48
1944 0.00 0.00 0.00 17.00 488.00 554.00 733.67 a 661.50 406.00 131.75 a 11.50 0.00 3003.42
1945 0.00 0.00 47.00 42.00 183.50 362.00 708.00 684.00 367.00 142.00 0.00 a 0.00 2535.50
1946 0.00 0.00 58.00 211.00 218.00 592.00 758.47 a 610.00 325.50 63.50 0.00 0.00 2836.47
1947 0.00 0.00 2.50 52.50 190.50 449.50 715.00 887.50 440.50 243.00 0.00 0.00 2981.00
1948 0.00 0.00 8.00 199.00 304.00 503.00 758.50 716.50 528.50 113.50 7.50 0.00 3138.50
1949 0.00 0.00 0.00 119.00 405.50 598.50 828.00 728.50 277.00 137.50 19.50 0.00 3113.50
1950 0.00 0.00 0.00 41.00 242.50 585.50 619.00 611.98 b 389.00 176.50 3.50 0.00 2668.98
1951 0.00 0.00 0.00 a 53.50 291.50 366.00 630.00 619.00 236.50 140.00 0.00 0.00 2336.50
1952 0.00 0.00 0.00 a 151.50 309.50 695.50 819.00 697.50 494.50 79.50 9.00 0.00 3256.00
1953 0.00 0.00 4.50 41.00 308.50 650.50 754.00 768.00 465.00 279.50 34.00 0.00 3305.00
1954 0.00 0.00 0.00 149.00 238.00 572.00 846.00 699.00 420.00 75.50 15.00 0.00 b 3014.50
1955 0.00 a 0.00 4.00 224.50 464.50 525.00 948.50 921.00 490.50 185.50 0.50 0.00 3764.00
1956 0.00 0.00 0.50 28.50 372.50 795.50 725.00 669.50 407.50 270.50 0.00 0.00 3269.50
1957 0.00 0.00 0.00 113.00 228.00 487.76 a 888.00 737.50 319.50 116.50 0.00 0.00 2890.26
1958 0.00 0.00 0.00 64.50 395.50 485.50 656.50 772.50 494.50 205.00 3.00 0.00 3077.00
1959 0.00 0.00 5.50 99.50 324.50 699.83 a 773.50 869.00 409.00 38.00 0.00 0.00 3218.83
1960 0.00 0.00 0.00 99.00 311.50 537.00 805.50 760.50 454.00 185.50 7.50 0.00 3160.50
1961 0.00 0.00 16.50 52.50 263.50 633.00 749.50 811.50 354.50 148.50 3.50 0.00 3033.00
1962 0.00 0.00 0.00 145.50 450.00 572.50 698.50 710.00 361.50 194.00 3.50 2.50 3138.00
1963 0.00 0.00 54.00 114.50 334.50 693.00 842.00 712.00 465.50 292.50 0.00 0.00 3508.00
1964 0.00 0.00 0.00 123.50 456.50 650.00 891.50 613.00 375.00 133.00 15.00 0.00 3257.50
1965 0.00 0.00 0.00 82.00 390.00 560.00 738.50 698.00 188.00 150.00 9.50 0.00 2816.00
1966 0.00 0.00 31.00 45.50 302.50 593.00 916.00 606.50 343.00 132.50 0.00 0.00 2970.00
1967 0.00 0.00 55.00 94.00 289.00 550.00 734.50 708.00 436.00 153.00 0.00 0.00 3019.50
1968 0.00 0.00 64.50 99.50 216.00 657.50 773.50 784.50 423.00 158.00 3.00 0.00 3179.50
1969 0.00 0.00 0.00 113.50 407.50 444.00 795.00 803.00 490.50 56.00 5.00 0.00 3114.50
1970 0.00 0.00 0.00 97.00 418.50 670.00 829.50 817.50 480.00 125.00 0.00 0.00 3437.50
1971 0.00 0.00 5.00 140.50 252.50 721.50 673.00 804.50 412.50 176.50 0.00 0.00 3186.00
1972 0.00 0.00 0.00 43.50 350.50 603.00 699.50 719.50 416.00 0.00 z 0.00 z 0.00 2832.00
1973 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 139.00 f 2.59 a 0.00 2.59
1974 0.00 0.00 7.00 86.00 210.00 513.50 910.50 569.00 296.00 111.00 0.50 0.00 2703.50
1975 0.00 a 0.00 0.00 38.50 362.50 545.50 621.00 i 674.52 b 290.00 150.00 24.00 0.00 2085.02
1976 0.00 0.00 29.00 106.03 a 302.80 c 627.00 861.00 812.41 b 430.00 105.50 2.00 0.00 3275.75
1977 0.00 a 0.00 8.50 192.00 499.00 635.00 853.50 595.00 383.50 48.00 15.00 0.00 3229.50
1978 0.00 0.00 12.00 36.50 293.50 570.00 721.50 716.00 522.50 108.50 a 20.77 d 0.00 3001.27
1979 0.00 0.00 1.00 66.00 217.50 515.50 730.50 643.50 492.00 82.00 0.00 0.00 2748.00
1980 0.00 0.00 0.00 136.00 353.00 636.50 847.50 694.00 419.00 127.00 11.00 0.00 3224.00
1981 0.50 3.50 6.00 186.00 221.50 595.00 646.00 f 672.00 403.50 56.83 a 11.50 0.00 2156.33
1982 0.00 0.00 0.00 73.00 309.50 400.00 778.00 684.50 353.00 67.00 0.00 0.00 2665.00
1983 0.00 0.00 4.00 22.50 210.00 507.00 850.50 916.50 443.50 84.00 27.00 0.00 3065.00
1984 0.00 0.00 0.00 j 24.00 237.00 576.50 751.00 772.00 296.50 132.00 2.00 0.00 2791.00
1985 0.00 0.00 2.50 189.00 434.00 454.00 745.50 582.50 347.00 60.50 0.00 0.00 2815.00
1986 0.00 0.00 46.00 72.41 a 321.00 662.50 822.00 630.00 335.00 113.50 2.50 0.00 3004.91
1987 0.00 0.00 13.50 193.50 480.50 705.50 817.00 619.00 398.00 53.00 12.50 0.00 3292.50
1988 0.00 0.00 13.00 77.00 468.00 792.00 815.50 778.50 408.50 66.00 0.00 0.00 3418.50
1989 0.00 0.00 8.00 147.00 296.50 507.50 847.50 717.00 269.50 j 89.00 k 4.00 0.00 2527.50
1990 0.00 0.00 9.00 131.50 221.00 589.00 674.50 698.50 508.00 81.50 22.00 0.00 2935.00
1991 0.00 0.00 1.50 94.50 389.50 722.00 755.00 753.50 406.00 100.50 0.00 0.00 3222.50
1992 0.00 0.00 4.00 43.50 332.00 473.50 496.50 517.50 331.00 123.00 0.00 0.00 2321.00
1993 0.00 0.00 6.00 37.00 258.50 444.50 636.50 671.50 216.00 83.50 0.00 0.00 2353.50
1994 0.00 0.00 7.50 86.00 417.50 580.50 625.50 601.00 418.50 113.00 3.50 0.00 2853.00
1995 0.00 0.00 11.00 3.00 169.00 588.50 751.00 798.00 348.50 71.00 0.00 0.00 2740.00
1996 0.00 0.00 0.00 35.00 206.00 594.50 622.50 652.50 331.50 107.50 0.00 0.00 2549.50
1997 0.00 0.00 13.00 48.00 174.00 618.00 772.00 669.50 433.00 191.00 0.00 0.00 2918.50
1998 0.00 a 0.50 19.00 66.00 389.50 470.50 778.00 740.00 549.50 75.50 3.50 1.00 3093.00
1999 0.00 0.00 2.58 a 55.86 a 298.00 532.24 a 803.33 b 692.00 317.50 72.00 32.59 a 0.00 2806.10
2000 0.00 a 0.00 a 24.00 74.48 a 321.00 518.00 761.50 720.00 394.00 141.00 5.50 0.00 2959.48
2001 0.00 0.00 0.00 106.00 347.00 592.50 819.50 732.00 378.10 a 67.34 b 38.28 a 0.00 3080.72
2002 1.00 0.00 0.00 107.50 188.00 676.00 886.00 716.50 463.00 46.50 0.00 0.00 3084.50
2003 0.00 0.00 17.50 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 17.50
Period of Record Statistics
MEAN 0.01 0.11 11.88 95.50 311.54 566.70 765.28 700.94 400.44 132.33 6.51 0.09 2994.82
S.D. 0.11 0.58 18.71 55.66 99.63 101.48 106.38 97.05 94.89 63.53 9.01 0.67 371.54
SKEW 8.23 6.22 2.50 0.53 0.73 0.47 0.18 0.07 0.08 0.72 1.76 8.52 0.01
MAX 1.00 4.50 111.50 249.50 696.00 911.50 1130.00 938.00 604.50 325.50 38.28 6.50 3925.13
MIN 0.00 0.00 0.00 0.00 117.00 362.00 496.50 451.50 187.00 14.50 0.00 0.00 2112.00
NO YRS 109 108 107 106 107 107 104 106 105 104 105 108 100