FLANDREAU, SOUTH DAKOTA

Monthly Total Cooling Degree Days

(392984)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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 0.00 11.00 151.00 195.50 135.00 110.17 a 0.00 a 0.00 0.00 602.67
1894 0.00 0.00 0.00 7.50 59.50 248.00 377.00 232.50 97.00 0.00 0.00 0.00 1021.50
1895 0.00 0.00 0.00 4.00 33.50 64.00 174.00 159.00 155.50 0.00 0.00 0.00 590.00
1896 0.00 0.00 0.00 7.00 80.00 84.00 146.50 191.50 35.00 0.00 b 0.00 0.00 544.00
1897 0.00 0.00 0.00 0.00 22.50 99.50 197.50 50.50 189.00 32.00 0.00 0.00 591.00
1898 0.00 0.00 0.00 0.00 24.00 98.00 191.50 169.00 85.50 3.50 0.00 0.00 571.50
1899 0.00 0.00 0.00 7.50 22.50 76.50 205.00 232.00 45.50 4.00 0.00 0.00 593.00
1900 0.00 0.00 z 0.00 0.00 48.50 125.50 137.43 a 274.50 61.00 8.00 0.00 0.00 654.93
1901 0.00 a 0.00 0.00 a 13.50 29.00 101.50 359.50 208.00 36.50 0.00 0.00 0.00 748.00
1902 0.00 0.00 0.00 0.00 27.00 36.50 150.50 75.50 2.50 0.00 0.00 0.00 292.00
1903 0.00 0.00 0.00 0.00 1.50 30.00 108.50 86.00 25.50 0.00 0.00 0.00 251.50
1904 0.00 0.00 0.00 0.00 5.50 39.50 74.92 a 72.50 18.50 0.50 0.00 0.00 211.42
1905 0.00 0.00 0.00 0.00 2.50 77.50 84.50 180.00 47.50 13.50 0.00 0.00 405.50
1906 0.00 0.00 0.00 4.50 39.00 40.50 89.00 174.50 67.50 4.00 0.00 0.00 419.00
1907 0.00 a 0.00 a 0.00 0.00 5.50 54.50 108.00 133.00 31.50 0.00 a 0.00 0.00 c 332.50
1908 0.00 c 0.00 0.00 c 3.00 17.00 44.50 140.50 76.50 152.00 3.00 0.00 0.00 436.50
1909 0.00 0.00 0.00 0.00 5.50 66.50 130.50 274.19 b 27.00 10.00 0.00 0.00 f 513.69
1910 0.00 0.00 3.50 21.50 0.00 d 154.14 a 218.79 e 123.00 50.00 19.00 0.00 z 0.00 589.93
1911 0.00 0.00 0.00 0.00 a 98.34 b 278.00 205.00 98.50 51.43 b 0.00 0.00 0.00 731.27
1912 0.00 0.00 b 0.00 0.00 a 12.50 81.50 198.50 108.50 54.00 3.50 0.00 0.00 458.50
1913 0.00 0.00 0.00 8.00 31.50 173.50 155.00 a 238.50 114.50 0.00 z 0.00 z 0.00 z 721.00
1914 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
1915 0.00 z 0.00 z 0.00 k 1.50 8.00 26.50 85.00 41.50 17.00 0.00 0.00 b 0.00 179.50
1916 0.00 0.00 0.00 0.00 22.50 42.00 375.00 218.00 63.50 0.00 0.00 0.00 721.00
1917 0.00 0.00 0.00 0.00 12.50 71.38 a 248.52 a 115.00 20.50 0.00 0.00 0.00 467.90
1918 0.00 0.00 0.00 a 0.00 57.00 126.00 176.00 198.40 a 8.00 3.00 0.00 b 0.00 568.40
1919 0.00 c 0.00 e 0.00 0.00 18.71 b 172.24 a 260.18 c 187.03 a 73.93 b 2.50 0.00 0.00 714.59
1920 0.00 0.00 0.00 0.00 10.00 129.50 171.50 112.00 84.50 6.50 0.00 b 0.00 514.00
1921 0.00 d 0.00 0.00 4.50 46.50 253.00 309.50 160.68 a 46.55 a 0.00 e 0.00 a 0.00 820.74
1922 0.00 a 0.00 0.00 0.00 b 29.97 a 157.76 a 143.50 243.35 a 126.50 22.00 0.00 b 0.00 723.08
1923 0.00 a 0.00 a 0.00 2.50 18.00 162.69 d 0.00 z 111.60 a 0.00 z 0.50 g 0.00 c 0.00 z 294.79
1924 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 102.00 124.60 e 0.00 i 18.00 0.00 a 0.00 244.60
1925 0.00 0.00 0.00 7.24 a 55.00 90.50 184.50 222.50 144.50 0.00 0.00 0.00 704.24
1926 0.00 0.00 a 0.00 4.00 94.00 79.00 235.00 166.00 38.50 0.00 0.00 0.00 616.50
1927 0.00 0.00 0.00 0.00 8.50 92.50 78.00 93.53 b 129.00 0.00 0.00 0.00 401.53
1928 0.00 0.00 a 0.00 0.00 7.50 0.50 81.00 190.13 a 56.00 20.50 0.00 0.00 e 355.63
1929 0.00 0.00 b 0.00 3.00 9.50 84.00 229.50 215.50 47.07 a 0.00 0.00 e 0.00 a 588.57
1930 0.00 a 0.00 0.00 1.50 21.50 84.50 403.50 296.00 72.50 19.00 0.00 0.00 898.50
1931 0.00 z 0.00 z 0.00 z 10.00 56.00 284.50 320.00 220.50 182.50 0.00 0.00 0.00 1073.50
1932 0.00 0.00 0.00 0.00 40.00 126.00 276.50 173.00 13.00 0.00 0.00 0.00 628.50
1933 0.00 0.00 0.00 0.00 15.50 322.50 263.50 119.00 107.50 0.00 0.00 0.00 828.00
1934 0.00 0.00 0.00 12.00 214.50 195.00 a 304.50 184.50 14.50 1.50 0.00 0.00 926.50
1935 0.00 0.00 0.00 0.00 0.00 58.00 403.00 220.00 63.00 1.00 0.00 0.00 745.00
1936 0.00 0.00 0.00 0.00 58.00 115.00 466.50 285.00 120.00 0.00 0.00 0.00 1044.50
1937 0.00 0.00 a 0.00 0.00 27.38 a 90.50 305.50 368.50 100.50 4.50 0.00 0.00 896.88
1938 0.00 0.00 0.00 2.50 13.50 130.50 265.50 308.45 a 101.00 8.00 z 0.00 0.00 821.45
1939 0.00 0.00 0.00 8.50 87.50 136.50 285.50 178.00 177.00 0.00 0.00 0.00 873.00
1940 0.00 0.00 0.00 0.00 25.50 134.50 353.00 149.00 152.50 4.00 0.00 0.00 818.50
1941 0.00 0.00 0.00 2.00 83.50 145.00 304.83 a 291.00 114.50 0.00 0.00 0.00 940.83
1942 0.00 0.00 0.00 6.00 19.50 92.68 b 197.50 182.50 34.00 1.00 0.00 0.00 533.18
1943 0.00 0.00 4.50 0.00 35.50 168.00 255.50 205.00 22.50 1.00 0.00 0.00 692.00
1944 0.00 0.00 0.00 0.00 88.50 146.00 154.50 171.00 23.50 0.00 0.00 0.00 583.50
1945 0.00 0.00 0.00 0.00 2.50 34.50 184.50 184.50 66.00 1.50 0.00 0.00 473.50
1946 0.00 0.00 0.00 4.00 7.00 159.00 209.50 119.00 41.50 0.00 0.00 0.00 540.00
1947 0.00 0.00 0.00 0.00 1.00 44.48 a 203.50 366.50 114.00 22.50 0.00 0.00 751.98
1948 0.00 0.00 0.00 2.00 21.00 44.50 214.00 197.00 110.50 0.00 0.00 0.00 589.00
1949 0.00 0.00 0.00 0.00 49.00 139.00 276.50 242.00 8.50 0.00 0.00 0.00 715.00
1950 0.00 0.00 0.00 0.00 12.50 135.50 104.50 104.50 33.00 3.00 0.00 0.00 393.00
1951 0.00 a 0.00 0.00 0.00 2.00 g 34.66 a 176.50 124.50 2.00 11.50 0.00 0.00 349.16
1952 0.00 0.00 0.00 8.00 21.00 172.00 244.00 147.00 96.50 0.00 0.00 0.00 e 688.50
1953 0.00 0.00 0.00 a 0.00 26.50 171.50 215.00 217.00 50.50 15.00 0.00 0.00 b 695.50
1954 0.00 a 0.00 0.00 0.50 14.50 146.50 310.50 165.50 30.50 0.00 0.00 0.00 668.00
1955 0.00 a 0.00 0.00 3.50 54.50 87.00 391.50 348.00 99.00 4.65 a 0.00 0.00 988.15
1956 0.00 0.00 0.00 0.00 46.00 252.50 149.50 195.50 49.00 17.00 0.00 0.00 709.50
1957 0.00 0.00 0.00 a 0.00 17.50 57.00 386.00 199.00 19.00 0.00 0.00 0.00 678.50
1958 0.00 0.00 0.00 0.00 55.00 67.50 f 142.50 275.50 83.50 11.50 0.00 0.00 568.00
1959 0.00 0.00 0.00 0.00 41.50 221.00 237.00 300.00 66.21 a 0.00 0.00 0.00 865.71
1960 0.00 0.00 a 0.00 13.00 18.71 b 46.50 252.50 96.50 t 92.00 0.50 0.00 0.00 423.21
1961 0.00 0.00 0.00 0.00 b 12.50 104.00 f 174.00 241.00 66.50 2.00 0.00 0.00 496.00
1962 0.00 0.00 0.00 16.50 25.12 b 90.50 170.00 192.50 17.00 8.00 0.00 c 0.00 a 519.62
1963 0.00 0.00 0.00 8.00 30.50 214.50 266.00 194.00 50.50 12.50 0.00 0.00 776.00
1964 0.00 0.00 0.00 3.62 a 40.50 j 177.50 342.50 130.50 50.50 1.50 0.00 0.00 706.12
1965 0.00 0.00 0.00 0.00 19.50 83.50 211.00 172.00 16.50 0.50 0.00 0.00 503.00
1966 0.00 0.00 0.00 0.00 21.50 146.50 386.00 138.00 40.50 2.50 0.00 0.00 735.00
1967 0.00 0.00 0.00 a 0.00 32.00 56.00 181.50 124.50 4.50 0.50 0.00 0.00 399.00
1968 0.00 0.00 0.00 0.00 a 3.50 144.00 169.00 179.00 21.50 2.50 0.00 0.00 a 519.50
1969 0.00 0.00 0.00 0.00 b 53.50 25.50 201.00 194.00 33.00 1.50 0.00 0.00 508.50
1970 0.00 0.00 0.00 9.50 35.00 161.00 247.00 175.50 86.50 4.50 0.00 0.00 719.00
1971 0.00 0.00 0.00 0.50 6.50 177.00 113.00 181.50 61.00 1.50 0.00 0.00 541.00
1972 0.00 0.00 0.00 0.00 58.00 82.00 141.50 186.50 22.50 0.00 0.00 0.00 490.50
1973 0.00 0.00 a 0.00 0.00 9.00 131.50 189.50 245.00 26.50 5.50 0.00 0.00 607.00
1974 0.00 0.00 0.00 1.50 15.00 92.00 337.00 85.50 7.50 0.50 0.00 0.00 539.00
1975 0.00 0.00 0.00 0.00 32.50 100.00 308.50 178.50 21.00 4.00 0.00 a 0.00 644.50
1976 0.00 0.00 0.00 6.00 8.00 177.50 287.00 247.50 70.00 1.00 0.00 0.00 797.00
1977 0.00 0.00 0.00 a 0.00 z 79.00 108.00 252.50 57.87 a 22.50 0.00 0.00 0.00 519.87
1978 0.00 0.00 0.00 0.00 38.00 122.00 175.50 188.50 153.33 c 0.00 0.00 a 0.00 677.33
1979 0.00 0.00 a 0.00 0.00 15.00 98.00 210.50 107.50 61.00 0.00 0.00 0.00 492.00
1980 0.00 0.00 a 0.00 11.00 43.40 a 123.50 240.00 152.50 49.50 5.50 0.00 0.00 a 625.40
1981 0.00 0.00 0.00 6.50 15.00 85.50 226.00 140.00 19.00 0.00 0.00 0.00 492.00
1982 0.00 0.00 0.00 0.00 11.50 27.00 242.00 167.00 29.00 0.00 0.00 0.00 476.50
1983 0.00 0.00 0.00 0.00 5.50 100.50 323.95 a 331.00 72.50 6.00 0.00 0.00 839.45
1984 0.00 0.00 0.00 0.00 7.50 104.00 202.00 230.50 26.00 0.00 0.00 0.00 570.00
1985 0.00 0.00 0.00 12.00 30.00 56.00 144.00 64.50 51.00 0.00 0.00 0.00 357.50
1986 0.00 0.00 0.00 0.00 10.50 131.50 233.00 58.50 9.00 0.00 0.00 0.00 442.50
1987 0.00 0.00 0.00 12.50 62.00 171.50 276.00 122.00 20.50 0.00 0.00 0.00 664.50
1988 0.00 0.00 0.00 0.00 55.00 261.50 249.50 220.00 22.50 0.00 0.00 0.00 a 808.50
1989 0.00 0.00 0.00 4.00 6.50 94.50 261.00 131.00 38.50 6.50 0.00 0.00 542.00
1990 0.00 0.00 0.00 18.50 1.00 140.00 142.50 135.00 106.00 0.00 0.00 0.00 543.00
1991 0.00 0.00 0.00 6.50 75.00 212.00 191.50 174.00 49.00 0.00 0.00 0.00 708.00
1992 0.00 0.00 0.00 0.00 36.00 47.00 27.00 53.00 9.50 0.00 0.00 0.00 172.50
1993 0.00 0.00 0.00 0.00 2.50 43.00 123.50 137.00 5.50 2.50 0.00 0.00 314.00
1994 0.00 a 0.00 0.00 0.00 57.00 106.50 98.50 90.00 60.00 0.00 0.00 0.00 412.00
1995 0.00 0.00 0.00 0.00 0.00 148.50 209.50 224.50 27.50 0.50 0.00 0.00 610.50
1996 0.00 0.00 0.00 0.00 22.00 117.50 0.00 z 113.00 44.00 0.00 0.00 0.00 296.50
1997 0.00 0.00 0.00 0.00 5.00 108.00 202.00 134.50 48.00 14.50 0.00 0.00 512.00
1998 0.00 0.00 0.00 0.50 50.50 73.50 193.00 156.00 88.50 0.00 0.00 0.00 562.00
1999 0.00 0.00 0.00 0.00 15.00 106.50 270.00 125.50 38.00 0.00 0.00 0.00 555.00
2000 0.00 0.00 0.00 0.00 26.50 84.50 207.00 168.50 35.50 0.00 0.00 0.00 522.00
2001 0.00 0.00 0.00 9.00 24.50 127.00 256.50 192.50 38.50 0.00 z 0.00 0.00 648.00
2002 0.00 0.00 0.00 7.50 25.00 176.00 322.50 145.50 85.50 1.00 0.00 0.00 763.00
2003 0.00 0.00 0.00 3.00 5.00 83.00 197.00 209.00 33.00 7.00 0.00 0.00 537.00
2004 0.00 0.00 0.00 0.00 17.50 53.50 127.50 47.50 82.00 0.00 0.00 0.00 328.00
2005 0.00 0.00 0.00 0.00 10.50 138.00 226.50 112.00 91.00 10.50 0.00 0.00 588.50
2006 0.00 0.00 0.00 1.50 47.50 92.50 246.50 130.50 4.50 5.00 0.00 0.00 528.00
2007 0.00 0.00 0.00 5.00 36.00 132.50 235.50 151.00 84.00 17.50 0.00 0.00 661.50
2008 0.00 0.00 0.00 0.00 0.00 35.50 185.50 116.50 42.00 0.50 0.00 0.00 380.00
2009 0.00 0.00 0.00 1.00 0.00 z 92.50 62.50 73.00 19.50 0.00 0.00 0.00 248.50
2010 0.00 0.00 0.00 0.00 42.50 75.00 182.50 229.50 4.00 3.50 0.00 0.00 537.00
2011 0.00 0.00 0.00 0.00 9.00 75.50 342.50 128.00 39.00 20.00 0.00 0.00 a 614.00
2012 0.00 0.00 8.00 3.50 44.00 171.00 384.00 140.50 47.50 0.00 0.00 0.00 798.50
2013 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
Period of Record Statistics
MEAN 0.00 0.00 0.14 2.74 29.93 115.25 220.32 171.63 58.33 3.84 0.00 0.00 604.89
S.D. 0.00 0.00 0.91 4.46 28.96 61.87 86.41 69.06 42.93 6.39 0.00 0.00 177.19
SKEW 0.00 0.00 7.14 1.90 2.71 0.86 0.37 0.52 1.02 2.05 0.00 0.00 0.13
MAX 0.00 0.00 8.00 21.50 214.50 322.50 466.50 368.50 189.00 32.00 0.00 0.00 1044.50
MIN 0.00 0.00 0.00 0.00 0.00 0.50 27.00 41.50 2.00 0.00 0.00 0.00 172.50
NO YRS 117 116 116 117 115 116 117 118 117 115 117 116 101