MITCHELL 2 N, SOUTH DAKOTA

Monthly Total Growing Degree Days

(395671)

Base Temperature = 40 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 669.00 948.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1617.00
1895 0.00 z 26.00 s 82.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 w 8.50 90.50
1896 4.13 a 25.00 24.50 303.50 683.50 806.50 965.00 918.00 485.50 216.50 0.00 0.00 4432.13
1897 0.00 0.00 26.50 208.00 542.50 737.00 1033.00 795.15 a 879.31 a 402.50 55.00 0.00 4678.96
1898 0.00 7.00 46.00 211.00 457.50 827.00 944.50 940.50 692.00 188.50 42.00 0.00 4356.00
1899 0.00 9.00 4.65 a 246.00 507.00 809.00 981.00 997.50 584.00 323.00 134.50 0.00 4595.65
1900 8.50 0.00 72.50 419.00 695.00 883.00 894.35 a 1113.50 681.50 534.00 32.50 8.00 5341.85
1901 8.50 0.00 70.00 319.00 626.00 885.00 1216.23 a 1039.53 a 601.50 418.00 30.50 0.00 e 5214.27
1902 3.50 8.50 91.93 b 206.00 674.25 a 720.00 981.00 866.00 515.00 366.00 37.00 0.00 4469.18
1903 0.00 a 0.00 36.00 262.00 603.50 771.50 978.00 907.50 620.50 386.00 56.50 0.00 4621.50
1904 0.00 0.00 35.50 146.50 577.00 776.50 922.50 892.50 658.50 409.00 120.00 14.47 a 4552.47
1905 0.00 16.59 a 154.50 242.50 444.00 768.00 917.71 b 1049.50 747.93 a 263.00 76.55 a 12.50 4692.78
1906 5.00 17.00 5.00 339.83 a 632.00 805.00 965.50 1007.00 737.07 a 319.50 44.48 a 5.00 4882.38
1907 0.00 b 9.33 a 120.90 a 78.50 328.00 747.00 959.50 927.93 a 566.00 272.00 46.00 0.00 4055.17
1908 7.50 2.00 51.00 339.83 a 509.00 726.50 982.00 860.50 868.00 296.50 85.86 a 0.00 a 4728.69
1909 0.00 b 1.00 8.50 92.00 535.50 811.55 a 980.50 1095.00 630.00 265.00 111.00 0.00 4530.05
1910 0.00 0.00 285.50 381.50 439.50 832.00 1019.50 853.00 603.50 480.00 7.50 0.00 4902.00
1911 0.00 0.00 122.00 256.00 691.50 978.00 955.50 839.00 664.66 a 213.00 2.00 0.00 4721.66
1912 0.00 a 0.00 19.50 288.00 614.00 764.00 942.00 855.50 529.66 a 335.00 79.00 0.00 4426.66
1913 2.67 b 7.00 32.50 306.00 517.00 920.17 a 979.08 a 1068.50 682.00 312.50 78.00 3.50 4908.93
1914 2.00 0.00 32.00 269.00 633.43 a 895.50 1119.50 906.00 658.00 395.25 a 118.50 0.00 5029.18
1915 0.00 0.00 0.00 480.50 411.02 b 662.50 812.00 761.50 569.00 328.50 91.00 1.03 a 4117.05
1916 0.00 0.00 51.50 175.34 a 495.50 676.00 1209.50 945.50 596.00 232.50 49.50 15.50 4446.84
1917 1.50 0.00 24.50 86.00 441.00 714.00 1049.19 b 862.50 596.00 128.50 108.50 1.00 4012.69
1918 0.00 5.00 184.45 a 105.50 609.00 856.00 946.00 978.00 457.00 393.00 64.00 16.50 4614.45
1919 5.50 0.00 59.50 211.50 559.50 880.50 1122.00 955.00 716.50 214.00 0.00 z 0.00 4724.00
1920 0.00 0.00 84.22 a 88.00 601.00 885.00 1039.00 962.00 764.50 520.50 20.50 1.00 4965.72
1921 0.00 31.50 122.89 c 347.00 628.00 1056.50 1164.00 993.50 731.00 407.00 26.50 16.00 5523.89
1922 0.00 0.00 52.50 285.00 684.50 959.46 b 982.00 1092.00 875.50 444.50 68.50 0.00 5443.96
1923 2.58 a 0.00 24.69 d 260.00 615.23 e 891.50 1136.50 947.00 749.50 316.00 103.00 17.50 5063.50
1924 1.00 14.50 5.00 309.50 404.00 741.00 961.50 986.50 612.50 537.00 69.50 0.00 4642.00
1925 0.00 0.50 143.00 490.50 564.50 875.00 1058.50 1115.00 874.50 124.50 35.50 6.20 a 5287.70
1926 0.00 9.00 78.50 352.00 818.00 841.00 1131.50 a 1047.50 619.14 a 392.50 28.00 0.00 5317.14
1927 1.50 9.85 a 51.00 254.00 496.00 811.50 994.00 906.50 775.00 476.00 25.00 0.00 4800.35
1928 4.50 1.00 105.50 154.50 694.00 736.50 1054.00 1034.00 634.50 371.00 40.00 3.50 4833.00
1929 0.00 0.00 79.50 297.00 528.50 817.00 1107.50 1049.00 566.00 373.00 14.50 1.50 4833.50
1930 0.00 57.00 47.00 359.50 533.72 a 844.50 1245.00 1108.77 a 715.00 362.00 97.50 3.00 5372.98
1931 15.50 17.00 36.68 a 348.50 539.50 1131.50 1210.50 1099.43 b 904.50 451.00 133.00 0.50 5887.61
1932 0.00 23.00 16.00 312.50 687.50 943.50 1162.50 1096.50 715.00 282.50 73.00 12.00 5324.00
1933 2.00 12.00 58.90 a 274.50 576.50 1211.50 1157.50 970.00 891.50 362.00 61.50 4.50 5582.40
1934 9.50 12.00 85.50 347.50 1006.00 1016.00 1226.00 1048.00 593.00 508.00 94.00 0.00 5945.50
1935 0.50 2.00 128.00 213.50 448.00 790.50 1305.50 1087.50 764.00 322.50 21.50 0.00 5083.50
1936 0.00 0.00 47.02 a 251.50 770.00 954.50 1440.00 1213.50 862.50 347.50 41.00 2.50 5930.02
1937 0.00 0.00 27.00 224.50 679.00 830.00 1190.00 1248.00 778.00 359.50 104.00 0.00 5440.00
1938 0.00 0.00 134.00 379.50 553.00 905.50 1159.00 1207.97 a 825.00 608.00 39.50 0.00 5811.47
1939 2.50 0.00 147.50 306.50 856.50 890.50 1201.50 1047.00 855.00 367.00 71.50 72.00 5817.50
1940 0.00 0.00 20.50 241.50 614.00 895.00 1214.00 990.50 874.00 577.50 33.00 0.00 5460.00
1941 0.00 0.00 26.87 a 362.50 795.50 902.00 1171.50 1123.50 753.00 397.00 99.50 40.50 5671.87
1942 12.00 0.00 45.50 445.50 521.00 862.50 1071.50 1032.00 576.00 403.50 80.00 0.00 5049.50
1943 0.00 26.50 131.75 a 362.00 529.00 876.00 1170.00 1097.50 675.00 398.50 19.14 a 4.50 5289.89
1944 10.00 0.00 2.00 157.00 770.00 854.00 1043.67 a 971.50 706.00 409.72 a 68.00 0.00 4991.88
1945 0.00 0.00 203.50 214.50 429.00 650.50 1018.00 994.00 646.00 393.00 24.31 a 0.00 4572.81
1946 0.00 0.50 199.00 463.00 497.00 886.00 1068.47 a 920.00 616.00 251.00 17.50 4.00 4922.47
1947 11.00 0.00 33.00 172.00 473.00 749.50 1025.00 1197.50 729.00 521.00 31.00 0.00 4942.00
1948 0.00 10.00 75.50 464.50 611.50 803.00 1068.50 1026.50 828.50 358.50 66.50 0.00 5313.00
1949 0.00 0.00 20.00 320.50 715.50 898.50 1138.00 1038.50 565.00 378.50 154.00 0.00 5228.50
1950 0.00 0.00 17.50 134.00 506.50 885.50 929.00 921.98 b 686.50 429.50 49.50 1.50 4561.48
1951 0.00 9.50 11.37 a 139.50 590.50 657.50 940.00 929.00 491.50 315.00 26.50 3.00 4113.37
1952 0.00 0.00 10.33 a 340.50 612.00 995.50 1129.00 1007.50 794.50 285.50 76.50 4.00 5255.33
1953 0.00 0.00 88.00 145.00 572.00 950.50 1064.00 1078.00 763.50 546.50 120.00 0.50 5328.00
1954 0.00 57.00 10.50 369.50 482.00 872.00 1156.00 1009.00 719.00 269.00 139.00 0.00 b 5083.00
1955 0.00 a 0.00 61.00 505.50 773.50 825.00 1258.50 1231.00 785.50 424.00 23.50 0.00 5887.50
1956 0.00 0.00 34.50 146.00 652.00 1095.50 1035.00 979.50 704.00 542.00 46.50 12.00 5247.00
1957 0.00 0.50 18.50 277.50 522.50 787.76 a 1198.00 1047.50 618.00 332.00 15.50 10.50 4828.26
1958 1.00 34.00 11.50 233.50 704.50 784.00 966.50 1082.50 789.00 440.00 93.50 1.00 5141.00
1959 0.00 0.00 85.00 286.00 624.00 999.83 a 1083.50 1179.00 690.50 200.00 16.50 3.50 5167.83
1960 0.00 0.00 1.50 274.50 618.50 837.00 1115.50 1070.50 750.00 442.50 83.00 0.00 5193.00
1961 0.00 5.00 65.00 190.00 553.50 933.00 1059.50 1121.50 650.50 404.00 41.50 4.50 5028.00
1962 7.50 15.50 2.50 324.00 760.00 872.50 1008.50 1020.00 660.00 454.50 90.50 31.00 5246.50
1963 3.00 13.50 159.50 329.00 630.00 993.00 1152.00 1022.00 765.50 575.50 55.00 0.00 5698.00
1964 0.00 0.50 5.00 345.50 766.50 950.00 1201.50 923.00 674.00 369.00 97.00 0.00 5332.00
1965 0.00 2.00 7.00 277.00 693.50 860.00 1048.50 1008.00 432.00 437.50 72.50 1.00 4839.00
1966 0.00 0.00 153.50 163.50 566.50 893.00 1226.00 916.50 637.50 384.00 24.00 3.50 4968.00
1967 1.00 3.00 161.50 299.00 548.00 850.00 1044.50 1018.00 730.50 373.50 43.00 0.00 5072.00
1968 0.00 0.00 226.00 315.00 504.00 957.50 1083.50 1094.50 723.00 410.50 63.50 8.50 5386.00
1969 0.00 0.00 0.00 362.00 714.50 743.00 1105.00 1113.00 790.50 215.50 66.50 3.50 5113.50
1970 0.00 5.50 0.50 252.00 718.50 970.00 1139.50 1127.50 775.00 317.50 15.00 0.50 5321.50
1971 0.00 3.50 57.00 340.50 551.50 1021.50 983.00 1114.50 706.00 445.50 45.00 0.00 5268.00
1972 0.00 1.00 58.00 236.00 652.50 903.00 1009.50 1029.50 712.50 0.00 z 0.00 z 7.50 4609.50
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 347.50 f 31.55 a 0.00 31.55
1974 3.00 8.50 56.00 261.00 518.50 813.50 1220.50 879.00 574.00 352.50 36.50 0.00 4723.00
1975 0.00 a 0.00 14.50 142.00 663.00 845.50 841.00 i 984.52 b 582.50 376.00 128.50 0.00 3736.52
1976 0.00 39.00 103.00 343.97 a 594.54 c 927.00 1171.00 1122.41 b 716.00 242.50 48.00 0.00 5307.42
1977 0.00 a 17.50 54.00 419.50 809.00 935.00 1163.50 905.00 683.50 259.50 73.00 0.00 5319.50
1978 0.00 0.00 64.50 182.50 589.50 870.00 1031.50 1026.00 822.50 312.58 a 83.08 d 0.00 4982.16
1979 0.00 0.00 14.00 190.00 474.00 815.50 1040.50 953.50 792.00 297.50 31.00 8.00 4616.00
1980 0.00 0.00 27.50 321.50 649.00 936.50 1157.50 1004.00 716.50 308.50 91.00 0.50 5212.50
1981 11.00 51.50 94.00 431.50 513.50 895.00 896.00 f 982.00 702.00 265.57 a 136.50 0.00 4082.57
1982 0.00 11.00 18.50 238.00 617.00 699.50 1088.00 994.50 646.00 270.00 17.50 12.00 4612.00
1983 0.00 10.00 48.50 124.50 502.50 807.00 1160.50 1226.50 718.50 311.50 101.00 0.00 5010.50
1984 0.00 0.00 5.50 j 192.00 511.50 876.50 1061.00 1082.00 540.50 315.00 54.50 6.50 4639.50
1985 0.00 5.00 72.50 399.50 743.50 754.00 1055.50 892.50 600.50 289.50 19.50 0.00 4832.00
1986 0.00 0.50 126.00 260.69 a 625.00 962.50 1132.00 940.00 635.00 346.00 36.50 0.00 5064.19
1987 12.00 19.00 73.50 427.00 782.50 1005.50 1127.00 929.00 698.00 209.00 92.50 2.50 5377.50
1988 0.00 0.00 88.50 230.50 773.50 1092.00 1125.50 1088.50 706.00 254.50 58.50 12.50 5430.00
1989 16.50 0.00 62.00 326.00 574.50 807.50 1157.50 1027.00 458.00 j 214.50 k 39.00 2.50 4012.50
1990 9.00 6.50 72.00 275.50 509.00 889.00 984.50 1008.50 801.50 264.50 88.00 0.00 4908.00
1991 0.00 9.00 70.50 285.50 648.50 1022.00 1065.00 1063.50 682.00 285.50 5.00 0.00 5136.50
1992 0.00 5.50 72.50 174.00 626.00 773.50 806.50 827.50 626.00 302.50 1.50 0.00 4215.50
1993 0.00 0.00 35.50 170.50 554.00 744.50 946.50 981.50 497.00 289.00 19.50 0.00 4238.00
1994 0.00 1.00 67.50 251.50 696.00 880.50 935.50 911.00 717.00 371.00 51.50 0.00 4882.50
1995 0.00 9.50 102.00 102.50 465.00 888.00 1061.00 1108.00 625.50 260.50 4.00 2.00 4628.00
1996 5.00 19.50 20.00 133.00 466.00 894.50 932.50 962.50 624.00 301.50 16.00 0.00 4374.50
1997 0.00 0.00 49.50 209.50 431.00 918.00 1082.00 979.50 731.00 397.50 13.50 0.00 4811.50
1998 3.10 a 18.50 60.50 243.00 698.50 762.00 1088.00 1050.00 845.00 327.50 53.00 39.50 5188.60
1999 0.00 30.00 62.00 a 241.03 a 607.00 832.24 a 1113.33 b 1002.00 613.50 281.50 147.93 a 7.00 4937.53
2000 0.00 a 50.23 a 129.50 256.55 a 629.00 818.00 1071.50 1030.00 671.00 389.00 36.00 0.00 5080.78
2001 0.00 0.00 0.50 243.50 655.00 892.50 1129.50 1042.00 670.86 a 261.90 b 201.72 a 0.00 5097.48
2002 12.00 12.50 8.50 259.50 438.50 976.00 1196.00 1026.50 756.00 169.50 40.00 2.00 4897.00
2003 7.00 1.50 105.50 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 114.00
Period of Record Statistics
MEAN 1.95 7.50 64.40 270.30 600.15 866.16 1075.28 1010.93 690.06 352.27 59.90 4.32 5006.39
S.D. 3.78 12.51 55.18 96.98 113.19 102.17 106.38 97.07 102.01 98.29 39.76 9.75 430.47
SKEW 2.07 2.31 1.30 0.18 0.47 0.44 0.18 0.07 -0.06 0.27 0.82 4.32 -0.06
MAX 16.50 57.00 285.50 505.50 1006.00 1211.50 1440.00 1248.00 904.50 608.00 201.72 72.00 5945.50
MIN 0.00 0.00 0.00 78.50 328.00 650.50 806.50 761.50 432.00 124.50 0.00 0.00 4012.69
NO YRS 109 108 107 106 107 107 104 106 105 104 105 108 100