CLARK, SOUTH DAKOTA

Monthly Total Growing Degree Days

(391739)

Base Temperature = 50 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 21.11 c 291.52 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 t 312.63
1894 0.00 b 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 404.50 n 706.00 398.00 31.50 0.00 0.00 1135.50
1895 0.00 z 0.00 0.50 150.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 a 151.00
1896 0.00 a 0.00 a 0.00 75.50 299.50 389.50 h 550.00 532.00 225.50 0.00 z 0.00 z 0.00 z 1682.50
1897 0.00 z 0.00 z 0.00 z 0.50 p 133.00 h 0.00 z 0.00 z 90.50 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 0.00 0.00 0.00 141.50 327.05 a 484.50 575.50 730.00 306.00 139.50 3.00 0.00 2707.05
1901 0.00 0.00 0.00 50.40 e 226.50 h 445.00 779.00 632.00 201.00 91.00 0.50 0.00 2198.90
1902 0.00 d 0.00 z 0.00 z 21.50 259.00 315.00 619.00 549.00 231.00 45.50 0.00 0.00 2040.00
1903 0.00 b 0.00 z 0.00 0.00 z 0.00 z 505.50 599.00 500.00 229.50 90.50 7.00 0.00 1931.50
1904 0.00 b 0.00 0.00 26.00 235.00 447.50 488.00 476.00 254.50 118.00 0.50 0.00 2045.50
1905 0.00 0.00 15.50 48.50 143.00 394.00 554.00 603.00 368.00 99.50 1.00 0.00 2226.50
1906 0.00 0.00 0.00 57.00 201.00 294.50 554.50 509.50 373.50 74.00 0.00 0.00 2064.00
1907 0.00 0.00 a 11.00 8.00 104.00 396.50 569.50 565.00 214.00 53.22 a 0.00 0.00 1921.22
1908 0.00 0.00 0.00 125.50 175.50 367.50 591.50 510.00 480.00 91.00 1.00 0.00 2342.00
1909 0.00 0.00 0.00 6.00 183.50 478.00 543.00 725.00 299.50 93.00 18.50 0.00 2346.50
1910 0.00 0.00 64.00 150.50 114.50 478.50 634.50 510.00 216.00 h 196.00 0.00 0.00 2148.00
1911 0.00 0.00 3.50 50.50 350.82 a 644.50 575.00 485.50 297.32 b 20.67 a 0.00 0.00 2427.80
1912 0.00 0.00 0.00 56.00 216.00 369.00 538.50 463.50 236.00 95.00 0.00 0.00 1974.00
1913 0.00 0.00 0.00 98.50 4.50 v 539.50 547.50 697.50 368.50 87.00 0.00 0.00 2338.50
1914 0.00 0.00 0.00 76.50 265.00 481.03 a 728.50 553.00 341.00 169.50 6.00 0.00 2620.53
1915 0.00 0.00 a 0.00 211.00 135.50 301.00 425.50 448.50 301.50 96.50 0.00 0.00 1919.50
1916 0.00 0.00 0.00 12.50 211.00 282.00 816.00 553.50 271.00 45.00 0.00 z 0.00 a 2191.00
1917 0.00 0.00 a 0.00 5.00 127.74 b 317.50 651.00 462.50 254.50 14.50 2.50 0.00 1835.24
1918 0.00 0.00 8.50 13.50 269.50 479.00 558.00 604.00 199.50 166.00 2.50 0.00 2300.50
1919 0.00 0.00 0.00 36.00 222.50 500.50 657.00 542.50 373.50 48.00 0.00 z 0.00 z 2380.00
1920 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 414.00 591.50 536.50 410.00 203.00 0.00 0.00 2155.00
1921 0.00 0.00 14.00 71.50 252.50 651.00 693.50 563.00 297.00 54.50 0.00 0.00 2597.00
1922 0.00 0.00 0.00 24.00 217.50 494.50 582.00 688.50 415.00 155.50 1.50 0.00 2578.50
1923 0.00 0.00 0.00 48.00 216.00 550.00 707.50 478.00 325.50 66.50 0.00 0.00 2391.50
1924 0.00 0.00 0.00 33.00 56.00 304.50 493.00 502.50 191.00 116.50 0.00 0.00 a 1696.50
1925 0.00 0.00 20.00 155.50 211.50 402.50 579.00 701.50 416.00 0.00 0.00 0.00 2486.00
1926 0.00 0.00 1.50 81.50 387.50 384.00 651.50 588.50 230.50 63.50 0.00 z 0.00 z 2388.50
1927 0.00 z 0.00 z 0.00 z 0.00 z 93.50 391.50 529.00 465.50 449.46 b 92.50 0.00 0.00 2021.46
1928 0.00 0.00 13.50 24.00 291.50 362.50 642.50 664.00 254.50 108.00 0.50 0.00 2361.00
1929 0.00 0.00 0.00 a 41.38 a 207.00 446.00 744.50 657.00 220.00 82.00 0.00 0.00 2397.88
1930 0.00 0.00 1.00 73.00 180.00 420.00 a 799.50 702.00 307.50 110.00 4.50 0.00 2597.50
1931 0.00 a 0.00 0.00 113.50 200.50 689.50 837.00 700.00 518.50 144.50 3.50 0.00 3207.00
1932 0.00 a 0.00 0.00 38.50 259.00 543.50 729.00 652.50 288.50 68.50 0.00 0.00 2579.50
1933 0.00 0.00 0.00 44.00 217.50 786.00 807.00 623.00 473.50 64.50 0.50 0.00 3016.00
1934 0.00 0.00 0.00 70.50 549.50 580.00 782.50 614.00 213.00 195.00 1.50 0.00 3006.00
1935 0.00 0.00 3.00 22.50 85.50 373.00 825.00 587.00 345.00 45.47 a 0.00 0.00 a 2286.47
1936 0.00 0.00 0.00 38.50 347.50 481.50 987.00 736.00 394.50 56.83 a 0.00 0.00 3041.83
1937 0.00 0.00 0.00 11.50 255.50 397.76 a 742.50 854.50 372.00 79.50 2.00 0.00 2715.26
1938 0.00 0.00 2.00 80.00 140.00 475.50 690.00 753.50 446.00 226.00 5.50 0.00 2818.50
1939 0.00 0.00 a 43.50 112.00 427.80 a 490.00 752.50 662.88 a 447.00 81.00 0.00 0.00 3016.68
1940 0.00 0.00 0.00 30.00 234.05 a 516.00 791.50 564.50 477.00 172.50 0.00 0.00 2785.55
1941 0.00 0.00 0.00 94.00 388.50 480.00 732.50 677.35 a 359.50 70.50 0.50 4.00 2806.85
1942 0.00 0.00 0.00 146.50 154.50 422.50 608.00 607.50 266.50 150.00 0.00 0.00 2355.50
1943 0.00 0.00 23.00 53.00 155.00 444.50 g 729.00 644.00 231.00 124.00 0.00 0.00 1959.00
1944 0.00 0.00 0.00 8.00 411.00 489.00 626.50 581.77 a 290.50 99.72 a 5.50 0.00 2511.98
1945 0.00 0.00 31.50 32.50 154.00 289.00 579.00 586.00 257.00 57.00 0.00 0.00 1986.00
1946 0.00 0.00 29.00 114.50 175.67 a 431.38 a 611.50 515.50 317.00 51.50 0.00 0.00 2246.05
1947 0.00 z 0.00 z 0.00 z 30.00 125.50 i 346.00 624.00 761.50 343.00 218.60 b 0.00 0.00 j 2323.10
1948 0.00 0.00 3.10 a 70.50 192.50 385.86 a 665.50 591.00 428.57 b 38.00 1.00 0.00 a 2376.03
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 719.64 c 278.00 p 220.50 80.00 8.79 a 0.00 1028.94
1950 0.00 0.00 0.00 3.00 164.82 a 507.50 534.50 490.00 333.00 104.50 2.00 0.00 2139.32
1951 0.00 0.00 0.00 53.50 264.53 a 307.00 588.50 538.00 190.86 a 104.50 0.00 0.00 2046.90
1952 0.00 0.00 f 0.00 118.50 244.50 576.00 702.50 621.00 449.00 38.00 1.50 0.00 a 2751.00
1953 0.00 0.00 0.00 22.00 243.50 531.00 618.50 660.00 317.00 226.50 16.00 0.00 2634.50
1954 0.00 0.00 0.00 69.50 179.50 471.50 770.50 633.00 303.10 a 52.00 8.00 0.00 2487.10
1955 0.00 b 0.00 0.00 153.00 389.50 445.00 792.50 763.50 365.00 126.14 b 0.00 0.00 3034.64
1956 0.00 0.00 0.00 6.00 266.50 643.50 585.00 572.50 259.50 174.50 0.00 a 0.00 2507.50
1957 0.00 0.00 0.00 77.50 167.00 412.00 806.00 645.00 234.00 78.50 0.00 0.00 2420.00
1958 0.00 0.00 0.00 47.50 341.00 341.00 572.00 725.00 407.00 160.68 a 0.00 0.00 b 2594.18
1959 0.00 0.00 a 0.00 53.50 243.00 625.00 704.50 751.00 333.00 17.50 0.00 0.00 2727.50
1960 0.00 0.00 0.00 50.00 237.50 415.50 723.50 668.50 349.00 109.00 0.00 0.00 2553.00
1961 0.00 0.00 9.50 25.00 175.00 545.50 602.50 727.50 244.82 b 98.50 0.00 0.00 2428.32
1962 0.00 a 0.00 0.00 g 70.00 258.85 a 463.89 c 578.50 631.88 a 241.00 75.50 g 0.00 d 0.00 f 2244.12
1963 0.00 0.00 41.50 64.50 205.00 555.52 a 696.00 650.00 396.50 268.00 0.00 0.00 c 2877.02
1964 0.00 a 0.00 z 0.00 83.00 0.00 z 0.00 z 787.00 532.50 287.00 109.00 5.50 0.00 1804.00
1965 0.00 0.00 0.00 36.50 265.00 446.00 656.50 603.50 109.50 83.50 5.50 0.00 2206.00
1966 0.00 0.00 11.50 7.50 205.50 485.00 805.50 491.50 290.00 82.00 0.00 0.00 2378.50
1967 0.00 0.00 32.50 41.00 183.00 407.50 592.50 581.50 345.50 101.50 0.00 0.00 2285.00
1968 0.00 0.00 33.50 58.50 136.00 508.00 607.50 609.50 290.00 91.00 0.00 0.00 2334.00
1969 0.00 0.00 0.00 60.00 291.00 303.50 625.50 693.37 a 396.00 39.50 2.50 0.00 2411.37
1970 0.00 0.00 0.00 63.00 278.50 564.00 725.50 697.50 391.50 94.50 0.00 0.00 2814.50
1971 0.00 0.00 0.00 115.50 177.00 570.00 553.87 a 682.00 314.50 87.00 0.00 0.00 2499.87
1972 0.00 0.00 0.00 9.00 299.50 483.00 578.50 614.00 306.50 70.00 0.00 0.00 2360.50
1973 0.00 0.00 0.00 40.00 235.50 535.00 700.50 772.50 277.50 166.50 0.00 z 0.00 a 2727.50
1974 0.00 0.00 0.00 80.00 183.00 489.00 857.50 555.00 295.50 122.00 0.00 0.00 2582.00
1975 0.00 0.00 0.00 5.50 272.00 473.00 816.50 644.00 241.00 140.00 27.50 0.00 2619.50
1976 0.00 0.00 7.50 80.00 253.00 592.00 766.98 b 807.00 410.00 97.00 0.00 0.00 3013.48
1977 0.00 0.00 0.00 a 176.00 483.50 557.50 749.00 497.50 339.00 46.00 7.50 0.00 2856.00
1978 0.00 0.00 6.50 28.00 279.50 510.00 650.50 687.50 490.00 70.50 23.00 0.00 2745.50
1979 0.00 0.00 0.00 42.00 166.50 494.50 635.50 573.50 440.00 63.03 a 0.00 0.00 2415.03
1980 0.00 a 0.00 a 0.00 135.50 367.50 534.50 713.50 630.00 357.00 101.50 4.50 0.00 2844.00
1981 0.00 b 0.00 6.00 123.00 218.50 478.00 730.64 b 658.00 397.50 68.50 4.00 0.00 2684.14
1982 0.00 0.00 0.00 64.00 280.00 334.50 719.50 635.50 301.00 50.50 0.00 0.00 2385.00
1983 0.00 0.00 0.50 11.00 159.50 475.50 811.00 853.00 376.00 64.00 6.21 a 0.00 2756.71
1984 0.00 0.00 0.00 14.00 214.50 492.00 679.50 707.50 246.50 124.50 0.00 a 0.00 2478.50
1985 0.00 0.00 0.00 125.00 378.00 375.00 682.50 465.50 268.50 29.97 a 2.00 0.00 2326.47
1986 0.00 0.00 26.00 46.50 245.00 518.50 700.50 482.00 216.00 60.50 0.00 0.00 2295.00
1987 0.00 0.00 1.50 147.50 369.50 615.50 753.00 520.50 306.50 37.50 6.00 0.00 2757.50
1988 0.00 0.00 0.50 50.00 367.50 712.50 788.00 673.00 295.00 28.00 0.00 0.00 2914.50
1989 0.00 0.00 1.00 83.00 238.00 398.50 755.00 622.00 298.50 118.50 0.00 0.00 2514.50
1990 0.00 0.00 4.00 98.50 167.50 489.00 580.00 601.50 436.50 47.00 15.50 0.00 2439.50
1991 0.00 0.00 1.50 86.00 342.50 576.00 631.50 628.50 273.50 59.50 0.00 0.00 2599.00
1992 0.00 0.00 0.00 38.50 281.50 374.50 384.00 412.50 224.50 92.00 0.00 0.00 1807.50
1993 0.00 0.00 0.00 15.50 179.50 325.50 520.50 550.50 137.50 43.50 0.00 0.00 1772.50
1994 0.00 0.00 0.00 45.00 338.50 492.00 541.00 500.00 335.00 63.00 0.00 0.00 2314.50
1995 0.00 0.00 0.00 0.00 118.50 528.50 631.50 660.50 274.00 32.50 0.00 0.00 2245.50
1996 0.00 0.00 0.00 17.50 162.50 505.50 572.00 619.50 277.50 74.50 0.00 0.00 2229.00
1997 0.00 0.00 0.00 a 15.50 136.50 554.50 631.00 561.50 363.50 137.00 0.00 0.00 2399.50
1998 0.00 0.00 0.00 50.50 319.00 371.50 679.00 655.00 477.50 46.00 0.00 0.00 2598.50
1999 0.00 0.00 9.00 29.46 b 237.00 452.50 719.50 582.00 226.00 34.00 23.00 0.00 2312.46
2000 0.00 0.00 12.50 39.50 264.00 427.00 664.50 637.50 0.00 z 120.50 10.00 0.00 a 2175.50
2001 0.00 0.00 0.00 72.00 264.50 487.00 724.88 a 701.50 310.00 52.00 25.00 0.00 2636.88
2002 0.00 0.00 0.00 60.50 153.50 566.00 803.50 604.00 388.50 23.00 0.00 0.00 2599.00
2003 0.00 0.00 2.50 89.50 164.00 431.00 697.00 702.00 305.50 151.00 0.00 0.00 2542.50
2004 0.00 0.00 6.00 53.00 174.50 350.00 590.50 441.50 382.00 59.50 1.50 0.00 2058.50
2005 0.00 0.00 2.50 67.00 206.00 545.50 693.50 598.00 438.50 74.50 3.00 0.00 f 2628.50
2006 0.00 0.00 0.00 80.00 246.50 539.50 808.00 661.00 194.00 79.00 7.50 0.00 2615.50
2007 0.00 0.00 3.50 62.50 299.50 528.50 732.50 571.00 342.50 75.50 0.00 0.00 2615.50
2008 0.00 0.00 0.00 16.00 136.50 396.00 655.50 590.50 296.00 33.00 10.50 0.00 2134.00
2009 0.00 0.00 0.00 25.00 179.50 402.00 504.50 490.50 365.50 4.50 0.00 0.00 1971.50
2010 0.00 0.00 8.50 73.50 240.00 471.00 666.50 726.50 228.00 108.50 2.50 0.00 2525.00
2011 0.00 0.00 0.00 10.50 144.00 408.50 777.00 605.57 b 278.50 155.50 0.00 0.00 2379.57
2012 0.00 0.00 52.00 61.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 113.00
Period of Record Statistics
MEAN 0.00 0.00 5.21 60.25 236.21 467.26 666.66 611.37 318.68 91.16 2.71 0.04 2465.75
S.D. 0.00 0.00 11.65 43.54 86.61 96.80 101.79 91.80 82.93 51.80 5.55 0.38 313.62
SKEW 0.00 0.00 2.91 0.98 0.80 0.36 0.06 0.17 0.19 0.94 2.80 10.30 -0.15
MAX 0.00 0.00 64.00 211.00 549.50 786.00 987.00 854.50 518.50 268.00 27.50 4.00 3207.00
MIN 0.00 0.00 0.00 0.00 56.00 282.00 384.00 412.50 109.50 0.00 0.00 0.00 1696.50
NO YRS 111 108 109 112 107 109 113 113 112 112 110 109 93