CLARK, SOUTH DAKOTA

Monthly Total Growing Degree Days

(391739)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201204
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 0.00 z 121.67 c 593.17 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 t 714.84
1894 0.00 b 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 574.50 n 1016.00 686.00 211.00 5.00 1.00 1919.00
1895 0.00 z 12.00 42.50 431.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 23.50 0.00 a 509.00
1896 0.00 a 9.32 a 2.00 214.50 607.00 609.50 h 860.00 842.00 506.00 0.00 z 0.00 z 0.00 z 3040.82
1897 0.00 z 0.00 z 0.00 z 76.00 p 337.00 h 0.00 z 0.00 z 150.50 y 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 4.50 0.00 22.50 342.00 620.00 a 784.50 885.50 1040.00 577.50 411.50 22.50 0.00 4710.50
1901 1.00 0.00 23.00 184.20 e 440.00 h 737.00 1089.00 942.00 474.50 331.00 20.50 0.00 3802.20
1902 1.15 d 0.00 z 0.00 z 132.00 553.50 611.50 929.00 859.00 519.50 313.00 21.00 0.00 3939.65
1903 0.00 b 0.00 z 6.00 0.00 z 0.00 z 805.50 909.00 810.00 475.00 336.50 66.50 0.00 3408.50
1904 0.00 b 0.00 2.50 89.00 509.50 747.50 798.00 786.00 540.50 339.50 87.50 0.00 3900.00
1905 0.00 5.50 101.00 180.00 372.50 694.00 864.00 913.00 668.00 219.00 69.00 0.00 4086.00
1906 0.00 1.00 2.50 239.50 437.00 594.50 864.50 819.50 672.50 237.00 29.00 0.00 3897.00
1907 0.00 0.00 a 58.00 49.00 295.00 693.00 879.50 875.00 491.00 226.82 a 11.50 0.00 3578.82
1908 1.00 0.00 16.00 281.50 432.00 664.00 901.50 820.00 744.00 243.00 38.50 0.00 4141.50
1909 0.00 0.50 2.50 52.50 439.50 778.00 853.00 1035.00 598.00 218.50 84.00 0.00 4061.50
1910 0.00 0.00 221.00 351.50 365.00 777.00 944.50 820.00 425.50 h 425.00 0.00 0.00 3904.00
1911 0.00 0.00 71.00 197.00 624.13 a 944.50 885.00 795.50 595.71 b 172.05 a 0.00 0.00 4284.90
1912 0.00 0.00 10.00 236.00 499.50 663.50 848.50 773.50 435.00 311.50 28.00 0.00 3805.50
1913 0.00 2.00 9.50 244.00 61.50 v 839.50 857.50 1007.50 630.00 242.00 48.00 1.00 3881.00
1914 0.00 0.00 16.50 225.00 538.00 781.03 a 1038.50 861.50 640.00 402.50 72.50 0.50 4576.03
1915 0.00 0.00 a 0.00 431.50 354.00 592.00 735.50 758.50 587.50 327.50 56.00 0.00 3842.50
1916 0.00 0.00 26.50 148.50 460.00 581.50 1126.00 863.50 540.50 185.00 0.00 z 0.00 a 3931.50
1917 0.00 0.00 a 9.00 61.00 383.22 b 617.50 961.00 772.50 547.50 103.50 119.00 0.00 3574.22
1918 0.00 0.00 106.50 108.50 552.50 779.00 868.00 914.00 461.00 391.50 51.50 0.50 4233.00
1919 0.00 0.00 20.50 165.50 481.00 796.00 967.00 852.50 656.50 151.00 0.00 z 0.00 z 4090.00
1920 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 712.00 901.50 846.50 690.00 437.00 4.50 0.00 3591.50
1921 0.00 16.50 58.50 254.50 496.00 951.00 1003.50 873.00 592.50 273.00 2.50 5.50 4526.50
1922 0.00 0.00 2.50 178.00 510.00 794.50 892.00 998.50 715.00 360.50 30.50 0.00 4481.50
1923 0.00 0.00 4.00 152.00 490.00 850.00 1017.50 788.00 620.00 232.00 40.00 2.00 4195.50
1924 0.00 1.00 0.00 147.00 253.50 596.50 803.00 812.50 471.50 392.00 12.50 0.00 a 3489.50
1925 0.00 0.00 89.00 427.50 438.00 700.00 889.00 1011.50 707.50 42.00 7.00 0.00 4311.50
1926 0.00 0.00 34.50 227.50 688.00 682.50 961.50 898.50 497.50 243.50 0.00 z 0.00 z 4233.50
1927 0.00 z 0.00 z 0.00 z 0.00 z 340.50 687.50 839.00 775.50 717.86 b 328.00 2.50 0.00 3690.86
1928 0.00 0.00 67.50 94.50 598.50 662.50 952.50 974.00 524.50 268.50 21.50 0.00 4164.00
1929 0.00 0.00 32.55 a 189.83 a 415.00 746.00 1054.50 967.00 492.00 289.00 6.00 0.00 4191.88
1930 0.00 23.00 14.00 245.50 432.50 720.00 a 1109.50 1012.00 582.00 265.00 56.50 0.00 4460.00
1931 0.00 a 5.00 18.50 269.00 413.50 989.50 1147.00 1010.00 805.00 379.00 65.00 0.00 5101.50
1932 0.00 a 13.00 8.00 211.50 548.00 843.50 1039.00 962.50 586.50 189.50 25.00 5.50 4432.00
1933 0.00 2.50 32.00 178.50 478.00 1086.00 1117.00 933.00 772.00 232.00 25.00 0.00 4856.00
1934 6.00 0.00 25.00 195.50 859.50 880.00 1092.50 924.00 473.00 425.50 40.50 0.00 4921.50
1935 0.00 0.00 44.50 124.50 337.50 667.00 1135.00 896.50 635.00 200.98 a 0.00 0.00 a 4040.98
1936 0.00 0.00 3.50 142.50 646.00 781.50 1297.00 1046.00 689.00 227.33 a 4.00 0.00 4836.83
1937 0.00 0.00 15.50 148.50 558.50 687.93 a 1052.50 1164.50 661.50 255.50 56.50 0.00 4600.93
1938 0.00 0.00 57.00 245.00 400.50 775.50 1000.00 1063.50 739.50 492.00 24.50 0.00 4797.50
1939 0.00 0.00 a 97.50 295.50 732.12 a 790.00 1062.50 972.88 a 712.00 259.50 48.00 44.50 5014.50
1940 0.00 0.00 0.00 133.00 522.87 a 816.00 1101.50 874.50 766.00 437.50 21.00 0.00 4672.37
1941 0.00 0.00 11.50 281.50 681.50 763.00 1042.50 987.35 a 635.00 309.00 60.00 22.50 4793.85
1942 0.50 0.00 23.50 354.00 394.00 722.50 918.00 917.50 491.50 350.00 40.00 0.00 4211.50
1943 0.00 0.00 69.50 238.50 405.50 674.50 g 1039.00 954.00 523.50 334.50 3.00 0.00 3567.50
1944 5.00 0.00 0.50 93.00 683.00 786.00 936.50 891.77 a 590.50 326.53 a 51.50 0.00 4364.30
1945 0.00 0.00 142.50 141.50 389.00 570.50 889.00 896.00 533.00 256.50 20.00 0.00 3838.00
1946 0.00 0.00 128.50 343.00 422.12 a 722.07 a 921.50 825.50 607.50 234.00 12.50 0.00 4216.69
1947 0.00 z 0.00 z 0.00 z 129.50 322.00 i 644.50 934.00 1071.50 614.00 465.53 b 17.50 0.00 j 3876.53
1948 0.00 0.00 19.12 a 260.50 479.50 685.86 a 975.50 901.00 728.57 b 244.50 27.50 2.07 a 4324.12
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1029.64 c 428.00 p 496.50 272.00 93.10 a 0.00 1891.25
1950 0.00 0.00 5.50 74.50 394.73 a 807.50 844.50 800.00 633.00 330.00 25.00 0.00 3914.73
1951 0.00 0.50 0.00 120.50 563.17 a 584.00 898.50 848.00 436.03 a 251.00 7.50 1.00 3710.20
1952 0.00 0.00 f 0.00 281.00 534.50 876.00 1012.50 931.00 748.00 208.50 47.00 0.00 a 4638.50
1953 0.00 0.00 28.00 82.50 490.50 830.00 928.50 970.00 611.50 470.50 92.00 0.00 4503.50
1954 0.00 4.00 3.00 249.00 406.50 770.00 1080.50 943.00 594.83 a 192.00 93.50 0.00 4336.33
1955 0.00 b 0.00 23.00 424.00 695.50 745.00 1102.50 1073.50 635.00 332.45 b 7.00 0.00 5037.95
1956 0.00 0.00 4.00 76.50 535.00 943.50 895.00 882.50 537.00 435.00 29.48 a 0.00 4337.98
1957 0.00 0.00 6.00 230.50 430.50 712.00 1116.00 955.00 518.00 246.00 10.50 0.50 4225.00
1958 0.00 23.50 9.50 179.50 642.50 641.00 882.00 1035.00 697.00 353.40 a 41.50 0.00 b 4504.90
1959 0.00 0.00 a 34.50 216.00 524.00 925.00 1014.50 1061.00 599.00 136.00 2.50 0.00 4512.50
1960 0.00 0.00 0.00 178.00 518.50 715.50 1033.50 978.50 638.00 311.50 27.00 0.00 4400.50
1961 0.00 1.00 43.50 105.00 421.00 845.50 912.50 1037.50 503.04 b 288.00 17.00 0.00 4174.04
1962 0.00 a 0.00 2.00 g 206.00 565.23 a 762.22 c 888.50 941.88 a 536.00 260.50 g 27.12 d 14.50 f 3926.95
1963 0.00 0.00 119.00 227.00 482.00 855.52 a 1006.00 960.00 696.50 537.00 38.00 0.00 c 4921.02
1964 0.00 a 0.00 z 2.50 231.50 0.00 z 0.00 z 1097.00 842.50 574.50 312.00 78.00 0.00 3138.00
1965 0.00 0.00 0.00 151.50 555.00 746.00 966.50 913.50 310.50 331.50 53.00 0.00 4027.50
1966 0.00 0.00 87.00 85.50 446.50 785.00 1115.50 801.50 579.50 270.00 3.50 0.00 4174.00
1967 0.00 0.00 97.00 184.00 409.00 707.50 902.50 891.50 635.50 270.50 26.50 0.00 4124.00
1968 0.00 0.00 152.50 208.50 378.50 807.50 917.50 919.50 590.00 289.00 17.50 0.00 4280.50
1969 0.00 0.00 0.00 242.00 583.50 596.00 935.50 1003.37 a 695.00 149.50 41.00 0.50 4246.37
1970 0.00 0.00 0.00 158.00 569.50 864.00 1035.50 1007.50 667.00 279.50 0.00 0.00 4581.00
1971 0.00 0.00 33.50 289.50 471.00 869.50 863.87 a 992.00 598.00 321.50 21.00 0.00 4459.87
1972 0.00 0.00 5.50 119.00 584.50 783.00 888.50 924.00 590.00 212.50 10.00 0.00 4117.00
1973 0.00 0.00 31.50 165.50 518.50 835.00 1010.50 1082.50 569.50 419.50 0.00 z 0.00 a 4632.50
1974 2.50 0.00 21.00 239.50 455.00 789.00 1167.50 865.00 569.00 352.00 20.00 0.00 4480.50
1975 0.00 0.00 15.50 78.00 573.00 773.00 1126.50 954.00 528.00 358.50 114.50 0.00 4521.00
1976 0.00 11.50 72.00 290.00 523.00 892.00 1076.98 b 1117.00 696.50 223.00 8.00 0.00 4909.98
1977 0.00 0.00 26.35 a 396.50 793.50 857.50 1059.00 807.50 638.50 246.50 52.50 0.00 4877.85
1978 0.00 0.00 38.50 148.50 575.00 810.00 960.50 997.50 790.00 278.50 90.00 0.00 4688.50
1979 0.00 0.00 0.00 135.00 403.00 794.50 945.50 883.50 740.00 268.67 a 17.00 0.50 4187.67
1980 0.00 a 0.00 a 3.50 315.00 656.50 834.50 1023.50 940.00 655.50 263.00 58.00 0.00 4749.50
1981 6.41 b 19.00 70.00 359.50 512.50 778.00 1040.64 b 968.00 693.50 282.00 93.00 0.00 4822.55
1982 0.00 0.00 6.00 209.50 582.00 634.50 1029.50 945.50 588.50 240.00 4.50 6.00 4246.00
1983 0.00 7.50 26.50 84.00 449.00 775.50 1121.00 1163.00 646.50 287.00 55.34 a 0.00 4615.34
1984 0.00 0.00 0.00 147.50 488.50 792.00 989.50 1017.50 486.50 298.00 37.76 a 0.00 4257.26
1985 0.00 2.00 32.50 328.50 685.00 669.50 992.50 775.50 502.00 224.75 a 15.50 0.00 4227.75
1986 0.00 0.00 81.00 212.00 535.00 818.50 1010.50 792.00 508.00 243.50 8.50 0.00 4209.00
1987 0.00 0.00 35.00 355.00 663.00 915.50 1063.00 830.50 604.50 153.00 59.00 0.00 4678.50
1988 0.00 0.00 23.50 166.00 677.50 1012.50 1098.00 983.00 586.00 152.50 11.00 1.00 4711.00
1989 0.00 0.00 15.50 207.50 506.50 696.00 1065.00 932.00 557.50 293.50 9.50 0.00 4283.00
1990 0.00 0.00 42.00 212.50 435.00 782.50 890.00 911.50 722.00 180.50 55.50 1.50 4233.00
1991 0.00 3.50 28.50 231.50 579.00 876.00 941.50 938.50 533.50 225.50 2.50 0.00 4360.00
1992 0.00 2.50 27.00 119.50 566.50 674.50 694.00 722.00 503.00 242.50 0.00 0.00 3551.50
1993 0.00 0.00 18.00 112.50 458.50 622.00 830.50 860.50 396.00 192.50 2.50 0.00 3493.00
1994 0.00 0.00 18.00 171.50 610.00 792.00 851.00 810.00 631.00 278.00 21.00 0.00 4182.50
1995 0.00 0.00 58.50 50.50 387.00 825.00 941.50 970.50 534.50 165.00 1.00 0.00 3933.50
1996 0.00 0.00 7.00 84.50 376.00 805.50 882.00 929.50 558.50 230.00 4.50 0.00 3877.50
1997 0.00 0.00 7.75 a 138.50 374.00 854.50 941.00 871.50 654.50 315.00 5.50 0.00 4162.25
1998 1.50 1.50 24.50 210.50 624.50 669.50 989.00 965.00 775.00 252.50 25.00 15.50 4554.00
1999 0.00 6.00 38.50 174.64 b 534.50 752.50 1029.50 892.00 505.50 194.50 113.00 0.50 4241.14
2000 0.00 17.00 94.00 170.00 557.00 727.00 974.50 947.50 0.00 z 345.00 33.00 0.00 a 3865.00
2001 0.00 0.00 0.00 182.50 558.50 787.00 1034.88 a 1011.50 605.00 224.00 182.50 0.00 4585.88
2002 3.00 0.50 1.00 168.00 346.50 866.00 1113.50 914.00 669.00 89.00 11.00 0.00 4181.50
2003 0.00 0.00 50.00 254.50 444.50 731.00 1007.00 1012.00 568.00 343.50 8.50 0.00 4419.00
2004 0.00 0.00 57.00 200.00 421.00 650.00 900.50 751.50 682.00 231.00 37.00 0.00 3930.00
2005 0.00 9.50 33.00 239.50 433.50 845.50 1003.50 908.00 731.00 270.00 46.00 0.00 f 4519.50
2006 0.00 0.00 16.00 268.00 519.50 839.00 1118.00 971.00 442.50 199.00 55.50 0.00 4428.50
2007 0.00 0.00 72.50 212.50 604.50 828.50 1042.50 881.00 630.50 297.00 38.00 0.00 4607.00
2008 0.00 0.00 1.00 100.00 382.00 696.00 965.50 900.50 596.00 205.50 63.00 0.00 3909.50
2009 0.00 0.00 32.50 137.50 443.00 695.00 814.50 800.50 660.00 72.00 63.50 0.00 3718.50
2010 0.00 0.00 34.50 304.50 467.00 771.00 976.50 1036.50 521.50 330.00 48.50 0.00 4490.00
2011 0.00 0.50 2.00 103.00 382.00 708.50 1087.00 915.57 b 560.00 347.50 29.50 0.00 4135.57
2012 2.00 0.00 213.50 245.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 460.50
Period of Record Statistics
MEAN 0.31 1.86 34.84 200.31 504.97 765.52 976.66 921.35 599.80 278.22 35.34 1.03 4318.09
S.D. 1.11 4.79 42.22 88.75 108.66 98.42 101.79 91.82 93.26 89.04 32.01 5.02 367.20
SKEW 4.10 3.01 2.12 0.62 0.48 0.31 0.06 0.17 -0.11 0.24 1.49 7.00 -0.13
MAX 6.41 23.50 221.00 431.50 859.50 1086.00 1297.00 1164.50 805.00 537.00 182.50 44.50 5101.50
MIN 0.00 0.00 0.00 49.00 253.50 570.50 694.00 722.00 310.50 42.00 0.00 0.00 3489.50
NO YRS 111 108 109 112 107 109 113 113 112 112 110 109 93