HUNTLEY EXP STN, MONTANA

Monthly Total Cooling Degree Days

(244345)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1911 0.00 0.00 0.00 0.00 10.50 94.00 123.00 95.00 27.00 0.00 0.00 0.00 349.50
1912 0.00 0.00 0.00 0.00 9.50 119.00 112.00 89.00 3.50 0.00 0.00 0.00 333.00
1913 0.00 a 0.00 0.00 0.00 9.00 70.00 131.50 168.00 36.72 a 0.00 0.00 0.00 415.22
1914 0.00 0.00 0.00 0.00 1.00 55.50 268.00 147.00 25.00 0.00 0.00 0.00 496.50
1915 0.00 0.00 0.00 4.50 4.13 a 6.00 45.50 143.50 13.50 0.00 0.00 0.00 217.13
1916 0.00 0.00 0.00 1.00 3.50 49.00 266.00 129.00 19.50 0.00 0.00 0.00 468.00
1917 0.00 0.00 0.00 0.00 6.50 30.50 307.50 144.00 12.00 0.00 0.00 0.00 500.50
1918 0.00 0.00 0.00 0.00 5.00 182.50 175.50 116.50 9.00 0.00 0.00 0.00 488.50
1919 0.00 0.00 a 0.00 0.00 70.00 216.50 266.00 191.00 20.50 0.00 0.00 0.00 764.00
1920 0.00 0.00 0.00 0.00 0.50 41.00 250.50 213.00 42.50 3.00 0.00 0.00 550.50
1921 0.00 0.00 0.00 0.00 0.50 106.00 216.50 194.50 16.00 1.00 0.00 0.00 534.50
1922 0.00 0.00 0.00 0.00 16.50 70.50 174.00 267.00 25.00 0.00 0.00 0.00 553.00
1923 0.00 0.00 0.00 0.00 3.50 28.00 293.50 122.50 40.50 0.00 0.00 0.00 488.00
1924 0.00 0.00 0.00 0.00 5.50 23.00 165.00 107.00 28.00 0.00 0.00 0.00 328.50
1925 0.00 0.00 0.00 1.00 16.00 88.50 184.45 a 128.00 41.00 0.00 0.00 0.00 458.95
1926 0.00 0.00 a 0.00 5.50 19.50 98.50 264.00 129.00 0.00 0.00 0.00 0.00 516.50
1927 0.00 0.00 0.00 2.00 4.50 33.00 137.00 68.50 15.50 0.00 0.00 0.00 260.50
1928 0.00 0.00 0.00 1.50 64.50 12.00 178.00 111.50 9.00 0.00 0.00 0.00 376.50
1929 0.00 0.00 0.00 0.00 14.50 57.50 241.50 242.00 15.50 0.00 0.00 0.00 571.00
1930 0.00 0.00 0.00 0.00 12.50 75.50 274.00 241.00 25.00 0.00 0.00 0.00 628.00
1931 0.00 0.00 0.00 0.00 27.00 161.00 261.50 206.50 43.50 0.00 0.00 0.00 699.50
1932 0.00 0.00 0.00 0.00 18.50 83.00 209.00 208.00 10.50 0.00 0.00 0.00 529.00
1933 0.00 0.00 0.00 0.00 8.50 160.50 274.50 153.00 20.50 0.00 0.00 0.00 617.00
1934 0.00 0.00 0.00 0.00 83.00 68.50 248.00 162.00 20.00 3.50 0.00 0.00 585.00
1935 0.00 0.00 0.00 0.00 0.50 42.50 233.50 101.78 a 24.50 0.00 0.00 0.00 402.78
1936 0.00 0.00 0.00 0.00 a 76.50 181.00 437.00 217.00 43.00 2.00 0.00 0.00 956.50
1937 0.00 0.00 0.00 0.00 26.00 90.00 273.00 188.50 48.00 0.00 0.00 0.00 625.50
1938 0.00 0.00 0.00 3.00 5.00 82.50 152.50 104.50 38.50 0.00 0.00 0.00 386.00
1939 0.00 0.00 0.00 5.00 24.50 27.00 235.00 144.50 23.50 0.00 0.00 0.00 459.50
1940 0.00 0.00 0.00 0.00 31.50 117.41 a 271.00 209.00 84.00 0.00 0.00 0.00 712.91
1941 0.00 0.00 0.00 0.00 20.50 98.00 212.00 179.00 5.00 0.00 0.00 0.00 514.50
1942 0.00 0.00 0.00 0.00 1.00 15.52 a 198.50 116.50 51.50 0.00 0.00 0.00 383.02
1943 0.00 0.00 0.00 0.00 7.50 45.50 218.50 155.00 7.50 4.50 0.00 0.00 438.50
1944 0.00 0.00 0.00 a 0.00 a 40.50 33.50 117.00 83.70 a 12.50 0.00 0.00 0.00 287.20
1945 0.00 0.00 0.00 0.00 3.50 29.00 199.00 151.50 44.00 0.00 0.00 0.00 427.00
1946 0.00 0.00 0.00 1.55 a 3.50 44.50 243.00 132.00 22.00 0.00 0.00 0.00 a 446.55
1947 0.00 0.00 0.00 0.00 5.50 9.00 251.00 181.50 22.50 0.00 0.00 0.00 a 469.50
1948 0.00 0.00 a 0.00 1.50 34.50 59.50 159.50 195.50 64.00 1.00 0.00 0.00 515.50
1949 0.00 0.00 0.00 0.00 24.50 54.50 142.50 173.50 17.50 0.00 a 0.00 0.00 412.50
1950 0.00 0.00 a 0.00 0.00 0.00 31.55 a 94.50 85.00 39.50 2.50 0.00 0.00 253.05
1951 0.00 0.00 0.00 0.00 16.00 7.00 234.00 113.00 9.50 0.00 0.00 0.00 379.50
1952 0.00 z 0.00 0.00 4.00 2.50 69.00 112.50 151.50 34.50 0.00 0.00 0.00 374.00
1953 0.00 0.00 0.00 0.00 a 1.50 53.00 184.00 127.00 33.50 1.50 0.00 b 0.00 a 400.50
1954 0.00 0.00 0.00 0.00 13.50 34.50 253.50 96.50 14.00 0.00 0.00 0.00 412.00
1955 0.00 0.00 0.00 0.00 0.00 35.50 179.50 197.00 48.00 0.00 0.00 0.00 460.00
1956 0.00 0.00 0.00 0.00 21.50 132.41 a 177.50 121.42 a 28.00 0.00 0.00 0.00 480.83
1957 0.00 0.00 0.00 a 0.00 10.50 33.00 240.50 151.90 a 13.50 2.07 a 0.00 0.00 451.47
1958 0.00 0.00 0.00 0.00 45.95 c 14.00 60.50 227.00 41.50 0.00 0.00 0.00 388.95
1959 0.00 0.00 0.00 0.00 0.50 113.50 178.00 146.50 40.00 0.00 0.00 0.00 478.50
1960 0.00 0.00 0.00 0.00 13.50 50.00 280.50 145.00 33.00 2.50 0.00 0.00 524.50
1961 0.00 0.00 0.00 0.00 21.50 141.00 231.50 267.00 7.50 0.00 0.00 0.00 668.50
1962 0.00 0.00 0.00 1.00 0.00 64.00 95.50 135.00 9.00 0.00 0.00 0.00 304.50
1963 0.00 0.00 0.00 0.00 7.00 54.00 219.00 205.50 80.00 10.00 0.00 0.00 575.50
1964 0.00 0.00 0.00 0.00 15.00 36.50 273.00 149.00 4.00 0.00 0.00 0.00 477.50
1965 0.00 0.00 0.00 0.00 1.50 20.00 177.00 142.50 2.50 0.00 0.00 a 0.00 343.50
1966 0.00 0.00 0.00 0.00 44.50 58.00 277.00 110.00 47.50 0.00 0.00 0.00 537.00
1967 0.00 0.00 0.00 0.00 10.00 20.89 b 215.00 173.00 43.00 0.00 0.00 0.00 461.89
1968 0.00 a 0.00 0.00 0.00 0.50 33.50 175.50 89.50 13.00 0.00 0.00 0.00 312.00
1969 0.00 0.00 0.00 0.00 20.00 32.00 143.50 196.00 29.50 0.00 0.00 0.00 a 421.00
1970 0.00 a 0.00 c 0.00 0.00 2.00 106.07 b 195.50 180.00 13.33 c 0.00 0.00 0.00 496.90
1971 0.00 0.00 0.00 0.00 6.50 55.00 108.00 292.50 12.50 0.00 0.00 0.00 474.50
1972 0.00 c 0.00 0.00 0.00 15.00 86.50 108.00 172.00 4.00 0.00 0.00 0.00 385.50
1973 0.00 0.00 0.00 0.00 6.09 c 93.50 150.00 188.00 10.00 0.00 0.00 a 0.00 447.59
1974 0.00 0.00 0.00 5.00 0.00 109.50 251.00 56.00 0.50 0.00 0.00 0.00 422.00
1975 0.00 0.00 0.00 0.00 1.00 14.50 256.50 93.50 5.89 b 0.00 0.00 e 0.00 371.39
1976 0.00 0.00 0.00 0.00 0.00 17.00 184.00 87.83 a 20.36 b 0.50 0.00 b 0.00 309.69
1977 0.00 d 0.00 0.00 0.52 a 1.55 a 97.50 164.00 61.00 14.50 0.00 0.00 0.00 a 339.07
1978 0.00 0.00 0.00 0.00 5.50 44.46 b 117.80 a 87.00 52.50 0.00 0.00 0.00 307.26
1979 0.00 0.00 0.00 0.00 a 7.23 a 61.07 b 130.50 78.00 17.50 0.00 0.00 0.00 294.30
1980 0.00 0.00 0.00 2.00 19.00 51.50 169.00 49.00 16.55 a 1.00 0.00 0.00 308.05
1981 0.00 0.00 0.00 c 0.00 a 2.00 14.50 145.91 b 133.30 a 15.58 d 0.00 c 0.00 0.00 a 311.29
1982 0.00 a 0.00 0.00 0.00 1.00 33.00 96.00 159.50 23.50 0.00 0.00 0.00 313.00
1983 0.00 0.00 0.00 0.00 7.50 31.00 160.00 286.50 38.00 0.00 0.00 0.00 523.00
1984 0.00 0.00 0.00 0.00 16.53 a 50.50 195.00 234.50 20.00 0.00 0.00 0.00 516.53
1985 0.00 0.00 0.00 0.00 25.00 43.00 203.00 71.30 a 1.00 0.00 0.00 0.00 343.30
1986 0.00 0.00 0.00 0.00 a 8.00 138.00 92.50 89.00 1.00 0.00 0.00 a 0.00 328.50
1987 0.00 0.00 0.00 a 5.50 26.00 96.00 149.46 c 53.50 11.00 1.50 0.00 0.00 b 342.96
1988 0.00 0.00 0.00 0.00 25.00 268.00 220.00 113.50 9.00 0.00 0.00 0.00 635.50
1989 0.00 0.00 0.00 0.00 0.00 45.00 213.50 88.50 8.00 1.00 0.00 0.00 356.00
1990 0.00 0.00 0.00 0.00 0.00 82.50 129.00 129.50 68.50 3.50 0.00 0.00 413.00
1991 0.00 0.00 0.00 0.00 0.00 29.50 163.50 211.00 35.50 0.00 0.00 0.00 439.50
1992 0.00 0.00 0.00 2.00 16.50 61.50 38.00 0.00 z 15.00 3.00 0.00 0.00 a 136.00
1993 0.00 z 0.00 z 0.00 z 0.00 z 6.00 47.50 29.00 46.50 2.50 3.50 0.00 0.00 135.00
1994 0.00 0.00 0.00 4.00 4.50 58.00 151.50 196.50 16.50 0.00 0.00 0.00 431.00
1995 0.00 0.00 0.00 0.00 3.00 62.00 115.00 137.00 33.50 0.00 0.00 z 0.00 z 350.50
1996 0.00 z 0.00 t 0.00 p 0.00 n 0.00 p 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1997 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 148.28 a 149.50 45.00 0.00 0.00 0.00 342.78
1998 0.00 0.00 0.00 0.00 15.50 11.00 292.50 237.00 135.50 0.00 0.00 0.00 691.50
1999 0.00 0.00 0.00 0.00 12.00 48.50 182.00 191.00 3.50 0.00 0.00 0.00 437.00
2000 0.00 0.00 0.00 0.00 0.00 z 57.50 271.00 209.00 34.00 0.00 0.00 0.00 571.50
2001 0.00 0.00 0.00 3.00 28.00 74.00 253.50 250.00 63.00 4.00 0.00 0.00 675.50
2002 0.00 0.00 0.00 0.00 12.50 96.00 294.50 73.50 34.00 0.00 0.00 0.00 510.50
2003 0.00 z 0.00 0.00 0.00 29.50 45.50 303.50 284.00 28.50 2.50 0.00 0.00 693.50
2004 0.00 0.00 0.00 0.00 0.50 29.00 178.50 86.50 18.50 0.00 0.00 0.00 313.00
2005 0.00 0.00 0.00 0.00 z 2.50 66.50 220.50 149.00 30.00 0.00 z 0.00 0.00 468.50
2006 0.00 0.00 0.00 0.00 18.50 82.00 298.00 139.00 7.00 0.00 0.00 0.00 544.50
2007 0.00 0.00 0.00 0.00 8.50 67.00 351.50 166.50 59.50 0.00 0.00 0.00 653.00
2008 0.00 0.00 0.00 0.00 24.00 52.00 229.00 191.50 3.50 0.00 0.00 0.00 500.00
2009 0.00 0.00 0.00 0.00 16.50 44.00 125.50 104.00 72.00 0.00 0.00 0.00 362.00
2010 0.00 0.00 0.00 0.00 2.50 47.00 177.50 200.00 19.50 6.00 0.00 0.00 452.50
2011 0.00 c 0.00 h 0.00 c 0.00 0.00 b 61.00 296.50 272.80 a 43.85 d 10.00 0.00 0.00 684.15
2012 0.00 0.00 0.00 11.25 b 23.77 a 108.00 358.00 206.00 29.50 0.00 0.00 0.00 736.52
2013 0.00 0.00 0.00 a 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 0.00 0.66 13.78 65.78 199.28 153.44 26.65 0.70 0.00 0.00 461.77
S.D. 0.00 0.00 0.00 1.72 16.32 46.07 72.90 58.66 21.50 1.78 0.00 0.00 129.48
SKEW 0.00 0.00 0.00 3.51 2.19 1.65 0.15 0.34 1.79 3.48 0.00 0.00 0.87
MAX 0.00 0.00 0.00 11.25 83.00 268.00 437.00 292.50 135.50 10.00 0.00 0.00 956.50
MIN 0.00 0.00 0.00 0.00 0.00 6.00 29.00 46.50 0.00 0.00 0.00 0.00 217.13
NO YRS 98 99 100 98 99 100 101 100 101 100 100 100 92