COLUMBIA 8 N, SOUTH DAKOTA

Monthly Total Growing Degree Days

(391873)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 86.00 q 70.00 g 0.00 0.00 0.00
1950 0.00 0.00 0.00 9.44 c 192.20 a 478.97 a 546.93 c 517.70 a 309.50 77.50 c 0.00 b 0.00 a 2132.24
1951 0.00 a 0.00 a 0.00 a 63.75 b 260.50 326.79 b 596.00 513.64 b 238.89 c 87.83 a 0.00 0.00 e 2087.40
1952 0.00 e 0.00 b 0.00 b 116.00 205.93 c 564.11 b 673.98 b 633.00 420.50 21.18 a 0.00 a 0.00 f 2634.70
1953 0.00 a 0.00 b 0.00 a 23.04 b 228.00 455.00 f 637.50 675.00 330.00 190.13 a 4.44 c 0.00 a 2088.11
1954 0.00 b 0.00 b 0.00 d 45.50 147.80 c 445.86 a 769.46 c 609.15 a 202.50 j 33.50 h 0.00 c 0.00 d 2017.78
1955 0.00 a 0.00 d 0.00 f 131.67 c 386.43 b 442.50 788.43 a 723.85 a 272.00 f 102.76 d 0.00 0.00 e 2575.64
1956 0.00 e 0.00 0.00 1.00 257.30 a 668.79 a 602.00 626.00 268.00 131.46 d 0.00 0.00 a 2554.56
1957 0.00 0.00 b 0.00 76.50 192.50 415.00 814.78 a 629.82 a 238.97 a 88.35 a 0.00 0.00 2455.92
1958 0.00 0.00 0.00 59.40 e 293.95 c 320.69 a 568.85 a 709.38 a 421.50 112.52 d 0.00 a 0.00 2486.29
1959 0.00 b 0.00 0.00 52.24 a 220.32 c 629.00 714.00 764.67 a 212.00 f 15.50 f 0.00 b 0.00 h 2380.23
1960 0.00 a 0.00 0.00 44.00 243.50 418.00 722.50 663.00 342.50 95.50 0.00 0.00 d 2529.00
1961 0.00 b 0.00 4.50 18.10 a 158.50 571.50 604.00 717.98 c 128.50 h 54.50 i 1.55 a 0.00 i 2076.14
1962 0.00 g 0.00 c 0.00 63.62 a 250.50 468.62 a 555.42 a 337.00 o 60.50 u 91.28 d 0.00 d 0.00 d 1429.44
1963 0.00 b 0.00 a 29.89 c 62.50 222.50 588.50 470.00 i 423.50 i 368.00 239.50 0.00 0.00 1510.89
1964 0.00 0.00 0.00 77.50 267.08 e 395.00 h 767.50 562.00 272.00 77.50 a 4.50 0.00 2028.08
1965 0.00 0.00 0.00 28.50 243.50 469.00 670.00 634.50 91.61 b 93.00 0.00 0.00 2230.11
1966 0.00 a 0.00 6.50 4.66 a 197.50 475.00 815.00 575.16 c 256.50 g 55.59 b 0.00 c 0.00 f 2129.40
1967 0.00 g 0.00 i 18.71 b 33.50 g 170.00 f 463.27 d 512.00 g 590.72 d 275.50 i 9.50 q 0.00 0.00 1072.70
1968 0.00 0.00 18.50 49.50 134.00 487.50 637.00 605.50 314.00 65.00 0.00 0.00 2311.00
1969 0.00 0.00 0.00 58.50 302.50 328.00 646.00 742.00 384.50 38.50 3.00 0.00 2503.00
1970 0.00 0.00 0.00 47.00 264.50 604.00 743.50 704.00 411.00 82.00 0.00 0.00 2856.00
1971 0.00 0.00 0.00 104.00 171.50 571.50 579.50 439.50 k 342.50 70.00 0.00 0.00 1839.00
1972 0.00 0.00 0.00 8.00 325.00 498.00 603.00 673.50 324.00 78.00 0.00 0.00 2509.50
1973 0.00 0.00 0.00 51.50 239.50 552.50 686.00 771.12 c 186.50 g 126.21 c 0.00 b 0.00 2426.84
1974 0.00 0.00 0.00 59.50 189.50 476.50 830.00 563.68 a 273.00 107.00 0.00 0.00 z 2499.18
1975 0.00 n 0.00 k 0.00 i 2.00 g 172.00 i 477.12 d 799.50 617.50 229.29 b 108.00 16.00 0.00 2247.40
1976 0.00 0.00 0.53 b 62.00 0.00 z 588.00 782.75 a 748.81 b 375.50 85.00 0.50 x 0.00 f 2642.59
1977 0.00 c 0.00 a 0.00 178.00 487.70 c 541.50 768.80 a 490.32 a 190.00 j 21.50 q 0.00 k 0.00 m 2466.31
1978 0.00 r 0.00 n 0.50 m 17.00 n 190.50 m 314.50 k 678.42 e 694.50 497.00 79.50 6.00 0.00 1955.42
1979 0.00 0.00 0.00 18.50 156.50 475.00 660.00 530.88 c 417.50 47.50 0.00 0.00 2305.88
1980 0.00 c 0.00 0.00 101.50 367.00 507.00 723.50 608.78 b 337.50 88.50 2.07 a 0.00 2735.84
1981 0.00 0.00 4.50 96.00 208.00 435.50 698.00 626.00 298.50 57.00 1.00 0.00 2424.50
1982 0.00 0.00 0.00 48.00 227.00 355.50 748.00 616.50 268.50 34.50 0.00 0.00 2298.00
1983 0.00 0.00 0.00 21.00 131.00 460.00 772.00 788.50 301.50 20.50 0.00 0.00 2494.50
1984 0.00 0.00 0.00 6.00 174.00 449.00 648.50 671.50 182.50 121.50 0.00 0.00 a 2253.00
1985 0.00 0.00 0.00 93.00 339.00 343.50 634.00 449.00 208.50 16.00 0.00 0.00 2083.00
1986 0.00 f 0.00 15.50 22.00 252.50 496.50 642.50 495.47 b 181.00 40.50 0.00 0.00 2145.97
1987 0.00 0.00 0.00 a 161.90 a 384.40 a 594.00 759.00 497.50 294.50 26.50 0.00 0.00 2717.80
1988 0.00 0.00 0.00 68.50 390.50 736.50 761.00 636.00 228.50 31.50 0.00 0.00 2852.50
1989 0.00 0.00 0.00 59.00 271.00 469.50 780.00 636.00 275.00 78.00 0.00 0.00 2568.50
1990 0.00 0.00 0.00 105.00 172.50 471.00 596.50 587.50 364.00 33.50 10.50 0.00 2340.50
1991 0.00 0.00 a 0.00 88.00 357.00 566.50 622.00 655.50 292.50 57.50 0.00 0.00 2639.00
1992 0.00 0.00 0.50 39.00 301.50 387.00 414.50 453.00 227.50 72.50 0.00 a 0.00 1895.50
1993 0.00 0.00 1.00 16.00 196.00 320.50 488.00 534.00 142.50 33.00 0.00 0.00 1731.00
1994 0.00 0.00 0.00 31.50 347.50 516.50 545.00 485.50 310.50 51.00 0.00 0.00 2287.50
1995 0.00 0.00 0.00 0.00 137.00 541.50 634.50 673.00 274.50 28.00 0.00 0.00 2288.50
1996 0.00 0.00 a 0.00 11.50 164.50 504.00 562.00 621.00 292.50 53.00 0.00 0.00 2208.50
1997 0.00 0.00 0.00 10.50 143.50 544.50 634.00 570.00 360.50 132.00 0.00 0.00 2395.00
1998 0.00 0.00 0.00 83.50 309.00 387.50 694.00 635.00 412.00 29.00 0.00 0.00 2550.00
1999 0.00 0.00 2.00 37.50 249.00 456.50 675.50 586.50 185.00 30.00 10.00 0.00 2232.00
2000 0.00 0.00 1.00 46.00 244.50 428.50 648.50 599.00 293.50 79.50 1.50 0.00 2342.00
2001 0.00 a 0.00 0.00 73.00 300.00 514.00 719.50 662.50 310.00 0.00 z 6.50 0.00 2585.50
2002 0.00 0.00 0.00 57.50 177.00 633.50 776.00 590.00 385.00 15.00 0.00 0.00 2634.00
2003 0.00 0.00 4.50 56.00 180.50 442.50 660.50 694.00 284.50 130.00 0.00 0.00 2452.50
2004 0.00 0.00 0.50 33.00 170.50 346.50 571.50 404.00 328.00 64.00 1.50 0.00 1919.50
2005 0.00 0.00 1.50 56.00 196.50 537.50 661.50 541.00 404.00 73.50 1.00 0.00 2472.50
2006 0.00 0.00 0.00 84.50 240.50 492.00 783.50 634.00 203.00 78.00 8.50 0.00 2524.00
2007 0.00 0.00 3.50 85.00 338.50 554.50 746.50 551.00 321.00 61.50 0.00 0.00 2661.50
2008 0.00 0.00 0.00 8.00 168.00 437.00 697.50 633.50 306.50 42.50 4.00 0.00 2297.00
2009 0.00 0.00 0.00 31.00 200.00 405.50 527.00 522.50 405.00 9.00 0.00 0.00 2100.00
2010 0.00 0.00 1.00 93.50 278.00 521.50 705.50 712.00 234.50 117.00 1.00 0.00 2664.00
2011 0.00 0.00 0.00 17.50 189.00 466.00 809.50 634.00 299.50 158.50 0.00 0.00 2574.00
2012 0.00 0.00 53.39 d 57.60 e 286.00 574.00 820.50 569.00 287.50 43.00 0.00 0.00 2690.99
2013 0.00 0.00 0.00 m 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 0.00 0.00 2.79 55.20 242.87 487.35 679.03 614.34 303.13 74.67 1.34 0.00 2402.05
S.D. 0.00 0.00 8.57 38.35 76.78 88.45 92.11 84.38 78.73 44.37 3.10 0.00 250.08
SKEW 0.00 0.00 4.30 0.89 0.80 0.17 -0.39 -0.18 -0.15 1.18 2.87 0.00 -0.49
MAX 0.00 0.00 53.39 178.00 487.70 736.50 830.00 788.50 497.00 239.50 16.00 0.00 2856.00
MIN 0.00 0.00 0.00 0.00 131.00 320.50 414.50 404.00 91.61 9.00 0.00 0.00 1731.00
NO YRS 59 61 60 60 59 60 61 60 54 57 62 57 43