DELTA, COLORADO

Monthly Total Cooling Degree Days

(052192)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199912
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 b 0.00 0.50 17.00 105.50 304.50 187.00 12.50 0.00 0.00 a 0.00 627.00
1894 0.00 0.00 a 0.00 2.50 44.00 87.00 333.50 194.00 i 13.00 0.00 0.00 a 0.00 480.00
1895 0.00 0.00 0.00 1.50 7.50 68.00 255.75 a 279.50 119.48 a 0.00 c 0.00 0.00 a 731.73
1896 0.00 0.00 b 0.00 0.00 b 67.00 h 156.00 j 0.00 z 28.00 q 0.00 b 0.00 z 0.00 z 0.00 0.00
1897 0.00 0.00 0.00 2.50 37.00 157.00 271.00 259.00 90.50 3.00 0.00 0.00 b 820.00
1898 0.00 a 0.00 0.00 0.00 a 7.00 197.00 385.00 290.00 8.00 0.00 0.00 0.00 887.00
1899 0.00 0.00 0.00 0.00 19.00 63.00 k 282.00 173.00 61.00 0.00 0.00 0.00 a 535.00
1900 0.00 0.00 0.00 0.00 37.00 189.00 335.00 215.50 35.00 0.00 0.00 0.00 811.50
1901 0.00 0.00 0.00 1.00 26.50 125.00 381.50 299.50 37.50 0.00 0.00 0.00 871.00
1902 0.00 0.00 0.00 0.00 8.50 146.50 156.00 225.50 28.00 0.00 0.00 0.00 564.50
1903 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
1904 0.00 z 0.00 z 0.00 z 0.50 f 13.50 55.00 192.50 168.00 2.00 h 0.00 0.00 z 0.00 z 429.00
1905 0.00 z 0.00 z 0.00 z 0.00 z 5.68 a 143.00 263.50 227.00 46.00 0.00 0.00 0.00 685.18
1906 0.00 0.00 0.00 0.00 7.00 110.50 263.00 219.50 35.00 0.00 z 0.00 z 0.00 z 635.00
1907 0.00 z 0.00 0.00 0.00 0.50 45.00 279.50 215.00 34.50 0.00 0.00 0.00 574.50
1908 0.00 0.00 0.00 0.00 4.00 64.00 281.00 177.00 38.50 2.00 0.00 0.00 566.50
1909 0.00 0.00 0.00 3.50 2.50 139.00 326.00 281.00 43.50 0.00 0.00 0.00 795.50
1910 0.00 0.00 0.00 0.50 22.00 154.50 336.00 228.50 79.00 0.00 0.00 0.00 820.50
1911 0.00 0.00 0.00 0.00 a 19.50 83.50 197.00 164.00 53.00 0.00 0.00 0.00 517.00
1912 0.00 0.00 0.00 1.50 19.00 42.50 q 212.00 162.00 5.50 0.00 0.00 0.00 o 400.00
1913 0.00 0.00 0.00 a 0.50 23.00 76.50 355.00 258.00 39.50 0.00 0.00 0.00 752.50
1914 0.00 0.00 0.00 0.00 25.50 93.00 245.50 221.00 53.00 0.00 0.00 0.00 638.00
1915 0.00 0.00 0.00 0.00 11.50 109.50 296.00 162.50 38.50 0.00 0.00 0.00 618.00
1916 0.00 0.00 0.00 u 0.00 8.00 81.50 241.50 131.00 29.50 0.00 0.00 0.00 491.50
1917 0.00 0.00 0.00 0.00 0.00 56.50 293.00 120.50 43.50 0.00 0.00 0.00 513.50
1918 0.00 0.00 0.00 0.00 0.00 247.50 199.00 142.00 17.50 9.50 0.00 0.00 615.50
1919 0.00 0.00 0.00 0.00 24.28 a 139.14 a 311.50 206.00 81.21 a 0.00 0.00 0.00 762.13
1920 0.00 0.00 0.00 0.00 6.50 64.00 240.50 134.50 20.50 0.00 0.00 0.00 466.00
1921 0.00 0.00 0.00 0.00 16.50 136.00 278.00 183.00 24.31 a 1.00 0.00 a 0.00 638.81
1922 0.00 0.00 0.00 0.00 8.00 185.50 248.50 271.50 31.00 1.00 0.00 0.00 745.50
1923 0.00 0.00 0.00 0.00 7.50 66.50 290.50 135.00 6.50 0.00 0.00 0.00 506.00
1924 0.00 0.00 0.00 0.00 6.50 159.00 218.50 149.50 38.00 0.00 0.00 0.00 571.50
1925 0.00 0.00 0.00 a 0.00 z 20.00 110.50 265.00 115.00 28.50 0.00 0.00 0.00 539.00
1926 0.00 0.00 0.00 a 0.00 13.50 112.24 a 188.50 218.00 34.50 0.00 a 0.00 0.00 566.74
1927 0.00 0.00 b 0.00 1.00 21.70 a 101.00 210.50 121.00 38.50 0.00 0.00 0.00 493.70
1928 0.00 0.00 0.00 0.00 24.50 58.00 205.00 159.50 34.00 0.00 0.00 0.00 481.00
1929 0.00 a 0.00 0.00 0.00 5.00 116.50 300.00 212.35 a 15.50 0.00 0.00 0.00 649.35
1930 0.00 0.00 0.00 0.00 a 22.50 103.00 259.50 204.50 36.21 a 0.00 0.00 0.00 625.71
1931 0.00 0.00 0.00 0.00 6.00 161.50 335.00 212.00 69.50 0.00 a 0.00 0.00 a 784.00
1932 0.00 0.00 0.00 a 0.00 8.50 101.00 282.50 208.00 11.00 3.00 0.00 0.00 614.00
1933 0.00 0.00 0.00 0.00 9.00 203.00 352.50 214.50 77.50 1.00 0.00 0.00 857.50
1934 0.00 0.00 0.00 3.00 79.00 122.00 395.50 307.50 46.00 0.00 0.00 0.00 953.00
1935 0.00 0.00 0.00 0.00 8.00 164.50 335.50 249.50 61.00 0.00 0.00 0.00 a 818.50
1936 0.00 0.00 0.00 0.50 44.50 235.00 340.00 262.50 45.00 0.00 0.00 0.00 927.50
1937 0.00 0.00 0.00 0.50 38.00 150.00 322.00 290.50 85.50 0.00 0.00 0.00 886.50
1938 0.00 0.00 z 0.00 0.00 21.00 148.45 a 230.50 262.50 37.50 0.00 0.00 0.00 699.95
1939 0.00 0.00 0.00 a 0.00 a 24.50 138.50 245.00 h 275.00 83.57 b 0.00 0.00 0.00 521.57
1940 0.00 0.00 0.00 0.00 41.00 234.50 352.00 261.50 86.50 0.00 0.00 0.00 975.50
1941 0.00 0.00 0.00 0.00 28.50 96.50 268.67 a 236.00 35.17 a 0.00 0.00 0.00 664.84
1942 0.00 0.00 0.00 0.00 33.00 118.00 344.00 255.00 52.00 3.00 0.00 0.00 805.00
1943 0.00 0.00 0.00 7.50 24.00 140.50 346.00 250.50 56.00 0.00 0.00 0.00 824.50
1944 0.00 0.00 0.00 0.00 28.50 89.00 277.50 259.50 64.50 3.50 h 0.00 0.00 719.00
1945 0.00 0.00 0.00 0.00 22.00 54.00 310.00 302.50 90.00 4.50 0.00 0.00 783.00
1946 0.00 0.00 0.00 0.00 4.50 157.00 310.50 257.50 70.50 0.00 0.00 0.00 800.00
1947 0.00 0.00 0.00 2.00 35.00 97.00 306.00 205.00 86.00 1.00 0.00 0.00 732.00
1948 0.00 0.00 0.00 0.50 47.00 124.00 273.50 205.50 76.00 0.00 0.00 0.00 726.50
1949 0.00 0.00 0.00 1.00 8.50 115.50 324.00 241.50 65.00 7.50 0.00 0.00 763.00
1950 0.00 0.00 0.00 0.00 6.50 134.50 271.50 183.00 67.00 0.00 0.00 0.00 662.50
1951 0.00 0.00 0.00 0.00 37.00 78.50 288.00 165.50 24.00 0.00 0.00 0.00 593.00
1952 0.00 0.00 0.00 0.00 20.50 155.17 a 258.50 196.00 49.00 0.00 0.00 0.00 679.17
1953 0.00 0.00 0.00 0.00 14.00 183.00 289.50 119.00 24.00 0.00 0.00 0.00 629.50
1954 0.00 0.00 0.00 0.00 32.50 168.50 377.00 182.50 42.00 1.00 0.00 0.00 803.50
1955 0.00 0.00 0.00 0.00 4.50 100.50 303.50 277.50 73.00 0.00 0.00 0.00 759.00
1956 0.00 0.00 0.00 0.00 12.50 147.00 236.50 130.50 41.00 1.50 0.00 0.00 569.00
1957 0.00 0.00 0.00 0.00 0.00 100.50 208.00 191.00 6.50 0.00 0.00 0.00 506.00
1958 0.00 0.00 0.00 0.00 59.00 174.00 227.00 268.50 63.50 0.00 0.00 0.00 792.00
1959 0.00 0.00 0.00 0.50 21.00 208.00 317.50 185.50 49.50 0.00 0.00 0.00 782.00
1960 0.00 0.00 0.00 3.50 11.00 145.00 288.00 212.00 62.50 0.00 0.00 0.00 722.00
1961 0.00 0.00 0.00 0.00 35.00 190.00 257.50 243.00 5.00 0.50 0.00 0.00 731.00
1962 0.00 0.00 0.00 3.50 21.00 117.00 206.00 193.50 35.00 0.00 0.00 0.00 576.00
1963 0.00 0.00 0.00 0.00 19.00 90.50 309.50 196.50 41.50 0.00 0.00 0.00 657.00
1964 0.00 0.00 0.00 0.00 35.50 77.00 304.50 150.50 14.00 0.00 0.00 0.00 581.50
1965 0.00 0.00 0.00 0.00 14.50 43.50 223.00 157.00 4.00 0.00 0.00 0.00 442.00
1966 0.00 0.00 0.00 0.00 16.50 135.00 345.50 223.50 27.50 0.00 0.00 0.00 748.00
1967 0.00 0.00 0.00 0.00 21.50 62.50 264.00 186.50 52.50 4.50 0.00 0.00 591.50
1968 0.00 0.00 0.00 0.00 15.00 90.00 253.00 84.50 2.50 0.00 0.00 0.00 445.00
1969 0.00 0.00 0.00 0.00 15.50 30.00 256.00 239.50 35.50 0.00 0.00 0.00 576.50
1970 0.00 0.00 0.00 0.00 4.00 112.00 240.50 229.00 17.00 0.00 0.00 0.00 602.50
1971 0.00 0.00 0.00 0.00 1.50 127.50 262.50 268.50 21.00 0.00 0.00 0.00 681.00
1972 0.00 0.00 0.00 a 0.00 4.50 104.00 239.00 209.50 15.50 0.00 z 0.00 0.00 z 572.50
1973 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
1974 0.00 0.00 0.00 0.00 16.50 148.50 263.00 130.50 18.00 0.00 0.00 0.00 576.50
1975 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 235.50 113.00 24.00 0.00 0.00 0.00 372.50
1976 0.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00
1977 0.00 0.00 0.00 0.00 14.00 245.00 319.50 216.50 63.00 1.50 0.00 0.00 859.50
1978 0.00 z 0.00 0.00 0.00 8.00 130.00 249.00 158.00 59.50 0.00 0.00 0.00 z 604.50
1979 0.00 b 0.00 z 0.00 0.00 11.76 b 123.50 262.00 174.50 59.00 0.00 0.00 a 0.00 630.76
1980 0.00 0.00 0.00 0.50 3.00 170.00 327.00 229.00 39.00 0.00 0.00 0.00 768.50
1981 0.00 a 0.00 0.00 0.00 11.50 240.00 354.50 251.50 82.50 0.50 0.00 0.00 a 940.50
1982 0.00 a 0.00 0.00 0.00 8.00 115.00 221.00 f 277.50 47.00 0.00 0.00 0.00 447.50
1983 0.00 0.00 0.00 0.00 12.50 73.50 246.50 319.50 109.50 0.00 0.00 0.00 761.50
1984 0.00 0.00 0.00 0.00 10.00 i 79.00 t 314.50 219.00 96.50 0.00 0.00 0.00 630.00
1985 0.00 0.00 0.00 0.00 23.50 181.00 292.50 0.00 z 57.00 0.00 0.00 a 0.00 554.00
1986 0.00 0.00 0.00 a 0.00 4.50 147.00 178.00 207.50 16.50 0.00 0.00 o 0.00 553.50
1987 0.00 c 0.00 0.00 1.03 a 9.50 137.07 a 0.00 z 166.00 13.00 0.00 0.00 0.00 326.60
1988 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 0.00
1989 0.00 0.00 0.00 0.00 16.00 21.00 k 252.50 58.50 0.00 12.50 0.00 k 0.00 339.50
1990 0.00 0.00 0.00 0.00 11.50 183.50 245.50 147.50 101.00 0.00 0.00 0.00 689.00
1991 0.00 0.00 0.00 0.00 23.00 111.50 238.00 229.00 56.00 0.00 0.00 0.00 657.50
1992 0.00 0.00 0.00 2.50 15.00 115.50 186.50 97.50 t 39.50 0.00 0.00 0.00 359.00
1993 0.00 0.00 0.00 0.00 22.50 119.00 136.50 37.50 0.00 0.00 0.00 0.00 315.50
1994 0.00 0.00 0.00 0.00 2.50 229.50 306.50 302.50 47.50 0.00 0.00 0.00 888.50
1995 0.00 0.00 0.00 0.00 1.00 72.50 204.00 295.00 96.50 0.00 0.00 0.00 669.00
1996 0.00 0.00 0.00 0.00 49.50 156.00 314.00 262.00 58.00 0.00 0.00 0.00 839.50
1997 0.00 0.00 0.00 0.00 16.50 147.50 122.00 m 212.00 65.00 0.00 0.00 0.00 441.00
1998 0.00 0.00 a 0.00 0.50 p 0.00 z 94.00 346.50 149.50 n 59.00 t 0.00 m 0.00 p 0.00 c 440.50
1999 0.00 c 0.00 g 0.00 0.00 b 6.89 d 105.52 a 243.00 f 189.88 c 8.57 b 1.55 a 0.00 b 0.00 312.40
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.42 17.79 127.36 277.37 207.77 44.34 0.61 0.00 0.00 692.98
S.D. 0.00 0.00 0.00 1.10 13.96 48.68 53.47 57.45 27.39 1.90 0.00 0.00 137.88
SKEW 0.00 0.00 0.00 3.80 1.44 0.47 -0.12 -0.39 0.44 4.32 0.00 0.00 -0.16
MAX 0.00 0.00 0.00 7.50 79.00 247.50 395.50 319.50 119.48 12.50 0.00 0.00 975.50
MIN 0.00 0.00 0.00 0.00 0.00 30.00 136.50 37.50 0.00 0.00 0.00 0.00 315.50
NO YRS 102 100 100 99 99 97 97 98 101 98 98 100 76