COLUMBIA 8 N, SOUTH DAKOTA

Monthly Total Cooling Degree Days

(391873)

Base Temperature = 65 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 4.50 q 1.00 g 0.00 0.00 0.00
1950 0.00 0.00 0.00 0.00 c 18.08 a 94.14 a 106.84 c 102.30 a 31.00 0.00 c 0.00 b 0.00 a 352.36
1951 0.00 a 0.00 a 0.00 a 2.14 b 12.50 25.18 b 157.00 103.16 b 1.67 c 0.00 a 0.00 0.00 e 301.64
1952 0.00 e 0.00 b 0.00 b 11.50 9.41 c 158.04 b 217.00 b 189.00 106.50 0.00 a 0.00 a 0.00 f 691.45
1953 0.00 a 0.00 b 0.00 a 0.00 b 15.00 125.50 f 185.50 216.00 45.50 17.05 a 0.00 c 0.00 a 479.05
1954 0.00 b 0.00 b 0.00 d 0.00 6.64 c 79.14 a 313.32 c 150.35 a 12.50 j 0.00 h 0.00 c 0.00 d 549.45
1955 0.00 a 0.00 d 0.00 f 2.22 c 43.83 b 74.00 326.02 a 270.73 a 63.50 f 1.72 d 0.00 0.00 e 718.52
1956 0.00 e 0.00 0.00 0.00 17.05 a 232.24 a 143.50 187.50 14.00 6.31 d 0.00 0.00 a 600.61
1957 0.00 0.00 b 0.00 0.00 10.00 36.50 349.78 a 190.13 a 13.97 a 1.55 a 0.00 0.00 601.93
1958 0.00 0.00 0.00 2.40 e 16.05 c 38.79 a 138.98 a 274.87 a 91.00 3.44 d 0.00 a 0.00 565.54
1959 0.00 b 0.00 0.00 0.00 a 45.95 c 212.50 255.50 304.32 a 13.50 f 0.00 f 0.00 b 0.00 h 818.26
1960 0.00 a 0.00 0.00 0.00 19.00 32.50 275.00 216.00 81.00 0.50 0.00 0.00 d 624.00
1961 0.00 b 0.00 0.00 0.00 a 7.50 159.50 151.50 257.41 c 26.50 h 0.00 i 0.00 a 0.00 i 575.91
1962 0.00 g 0.00 c 0.00 9.31 a 0.00 80.17 a 112.12 a 103.50 o 0.00 u 0.00 d 0.00 d 0.00 d 201.60
1963 0.00 b 0.00 a 0.00 c 0.50 14.50 158.50 140.00 i 111.00 i 26.50 9.50 0.00 0.00 209.50
1964 0.00 0.00 0.00 0.00 25.04 e 100.00 h 305.00 151.50 50.00 0.00 a 0.00 0.00 531.54
1965 0.00 0.00 0.00 0.00 3.50 56.50 206.00 187.50 4.82 b 0.00 0.00 0.00 458.32
1966 0.00 a 0.00 0.00 0.00 a 9.50 123.00 350.00 170.50 c 38.50 g 0.00 b 0.00 c 0.00 f 653.00
1967 0.00 g 0.00 i 0.00 b 0.00 g 25.00 f 52.50 d 167.50 g 145.81 d 36.50 i 0.00 q 0.00 0.00 198.31
1968 0.00 0.00 0.00 2.50 7.00 97.50 190.00 182.00 30.00 1.00 0.00 0.00 510.00
1969 0.00 0.00 0.00 0.00 55.50 22.00 186.00 279.50 72.50 0.00 0.00 0.00 615.50
1970 0.00 0.00 0.00 0.00 17.50 181.00 287.00 247.50 139.00 2.00 0.00 0.00 874.00
1971 0.00 0.00 0.00 0.00 0.00 145.00 145.50 157.00 k 69.00 0.00 0.00 0.00 359.50
1972 0.00 0.00 0.00 0.00 69.00 102.00 157.00 237.00 41.00 0.00 0.00 0.00 606.00
1973 0.00 0.00 0.00 0.00 8.00 130.50 229.50 306.12 c 4.00 g 2.21 c 0.00 b 0.00 676.34
1974 0.00 0.00 0.00 0.00 10.50 96.50 366.50 143.12 a 18.50 1.00 0.00 0.00 z 636.12
1975 0.00 n 0.00 k 0.00 i 0.00 g 8.50 i 101.54 d 342.00 168.50 9.64 b 1.50 0.00 0.00 623.18
1976 0.00 0.00 0.00 b 2.00 0.00 z 174.00 321.88 a 290.76 b 82.50 8.50 0.00 x 0.00 f 879.64
1977 0.00 c 0.00 a 0.00 7.00 94.11 c 111.50 307.42 a 66.13 a 21.50 j 0.00 q 0.00 k 0.00 m 586.16
1978 0.00 r 0.00 n 0.00 m 0.00 n 20.50 m 68.00 k 218.19 e 248.50 164.00 0.00 0.00 0.00 630.69
1979 0.00 0.00 0.00 0.00 13.50 86.00 201.00 119.02 c 79.00 0.00 0.00 0.00 498.52
1980 0.00 c 0.00 0.00 17.00 63.00 96.00 259.00 161.95 b 48.50 2.50 0.00 a 0.00 647.95
1981 0.00 0.00 0.00 2.00 8.00 48.00 249.00 169.50 28.00 0.00 0.00 0.00 504.50
1982 0.00 0.00 0.00 0.00 8.50 29.00 283.00 195.50 36.50 0.00 0.00 0.00 552.50
1983 0.00 0.00 0.00 0.00 5.00 96.50 314.50 324.00 62.00 0.00 0.00 0.00 802.00
1984 0.00 0.00 0.00 0.00 8.00 61.50 197.00 224.50 11.00 1.00 0.00 0.00 a 503.00
1985 0.00 0.00 0.00 3.50 38.00 48.00 177.00 70.50 15.00 0.00 0.00 0.00 352.00
1986 0.00 f 0.00 0.00 0.00 18.50 97.00 184.00 88.19 b 5.00 0.00 0.00 0.00 392.69
1987 0.00 0.00 0.00 a 8.28 a 51.15 a 180.50 305.00 110.50 19.50 0.00 0.00 0.00 674.93
1988 0.00 0.00 0.00 2.00 71.00 286.50 301.00 215.00 12.50 0.00 0.00 0.00 888.00
1989 0.00 0.00 0.00 0.00 13.50 97.50 315.50 189.50 29.00 3.50 0.00 0.00 648.50
1990 0.00 0.00 0.00 17.50 5.50 97.50 147.50 150.00 75.50 0.00 0.00 0.00 493.50
1991 0.00 0.00 a 0.00 0.00 57.00 138.50 173.50 196.00 45.50 1.50 0.00 0.00 612.00
1992 0.00 0.00 0.00 3.00 55.50 43.50 35.00 79.50 9.00 0.50 0.00 a 0.00 226.00
1993 0.00 0.00 0.00 0.00 6.00 35.00 72.00 110.50 0.50 0.00 0.00 0.00 224.00
1994 0.00 0.00 0.00 0.00 54.50 102.00 99.00 83.50 38.50 0.00 0.00 0.00 377.50
1995 0.00 0.00 0.00 0.00 3.00 155.50 185.00 209.50 49.50 0.00 0.00 0.00 602.50
1996 0.00 0.00 a 0.00 0.00 5.00 117.00 119.00 167.50 54.00 0.00 0.00 0.00 462.50
1997 0.00 0.00 0.00 0.00 2.50 104.50 194.50 151.00 28.50 5.50 0.00 0.00 486.50
1998 0.00 0.00 0.00 0.00 14.50 51.50 232.50 171.50 75.00 0.00 0.00 0.00 545.00
1999 0.00 0.00 0.00 0.00 11.00 73.50 216.00 143.00 8.00 0.00 0.00 0.00 451.50
2000 0.00 0.00 0.00 0.00 12.50 78.00 218.50 156.50 19.00 0.00 0.00 0.00 484.50
2001 0.00 a 0.00 0.00 2.00 20.00 125.50 262.00 209.50 37.00 0.00 z 0.00 0.00 656.00
2002 0.00 0.00 0.00 0.00 24.50 217.50 317.50 146.50 106.50 0.00 0.00 0.00 812.50
2003 0.00 0.00 0.00 0.00 6.50 68.00 196.00 240.00 41.50 1.50 0.00 0.00 553.50
2004 0.00 0.00 0.00 0.50 1.00 28.00 146.50 52.00 51.00 0.00 0.00 0.00 279.00
2005 0.00 0.00 0.00 0.00 9.00 126.50 211.50 106.50 78.50 3.50 0.00 0.00 535.50
2006 0.00 0.00 0.00 0.00 28.50 85.00 322.00 181.50 14.00 6.00 0.00 0.00 637.00
2007 0.00 0.00 0.00 0.00 32.00 146.50 285.00 122.50 72.50 1.50 0.00 0.00 660.00
2008 0.00 0.00 0.00 0.00 0.00 59.00 239.00 184.00 42.00 0.00 0.00 0.00 524.00
2009 0.00 0.00 0.00 0.00 0.00 81.00 88.50 98.50 45.50 0.00 0.00 0.00 313.50
2010 0.00 0.00 0.00 0.00 42.50 97.50 241.00 256.50 1.00 3.00 0.00 0.00 641.50
2011 0.00 0.00 0.00 0.00 2.00 82.00 344.50 170.50 40.50 22.50 0.00 0.00 662.00
2012 0.00 0.00 2.30 d 0.60 e 28.00 163.50 355.50 135.50 39.00 0.00 0.00 0.00 724.40
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 0.04 1.60 21.26 102.96 226.75 177.94 44.63 1.91 0.00 0.00 546.28
S.D. 0.00 0.00 0.30 3.77 21.53 55.96 81.28 65.02 34.98 4.09 0.00 0.00 157.28
SKEW 0.00 0.00 7.55 3.00 1.40 0.91 -0.15 0.23 1.18 3.40 0.00 0.00 -0.05
MAX 0.00 0.00 2.30 17.50 94.11 286.50 366.50 324.00 164.00 22.50 0.00 0.00 888.00
MIN 0.00 0.00 0.00 0.00 0.00 22.00 35.00 52.00 0.50 0.00 0.00 0.00 224.00
NO YRS 59 61 60 60 59 60 61 60 54 57 62 57 43