UKIAH, CALIFORNIA

Monthly Total Cooling Degree Days

(049122)

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 5.17 a 24.50 133.00 171.50 0.50 0.00 0.00 0.00 334.67
1894 0.00 0.00 0.00 0.00 4.50 15.50 198.50 209.00 94.00 8.50 0.00 0.00 530.00
1895 0.00 0.00 0.00 0.00 13.00 116.00 126.50 195.50 39.50 6.00 0.00 0.00 496.50
1896 0.00 0.00 0.00 0.00 24.28 a 71.50 247.00 120.50 49.14 a 13.00 0.00 0.00 525.42
1897 0.00 0.00 0.00 1.50 34.50 81.50 204.00 183.50 50.50 0.50 0.00 0.00 556.00
1898 0.00 0.00 0.00 2.00 0.00 72.00 194.50 174.00 36.00 1.55 a 0.00 a 0.00 f 480.05
1899 0.00 b 0.00 0.00 0.00 3.50 108.62 a 229.00 90.50 168.50 14.50 0.00 0.00 614.62
1900 0.00 0.00 0.00 0.00 a 10.00 161.50 234.50 120.50 43.00 1.00 0.00 0.00 570.50
1901 0.00 0.00 0.00 12.50 1.03 a 69.50 183.50 257.50 69.50 24.00 0.00 0.00 617.53
1902 0.00 0.00 0.00 0.00 8.78 a 0.00 z 0.00 z 0.00 z 116.50 0.00 0.00 h 0.00 a 125.28
1903 0.00 0.00 0.00 0.00 39.50 142.50 131.00 156.50 108.75 b 31.50 0.00 0.00 609.75
1904 0.00 0.00 a 0.00 8.00 66.00 132.50 216.00 246.50 186.00 24.00 0.00 0.00 879.00
1905 0.00 0.00 0.00 0.00 5.00 73.50 259.50 202.50 78.10 a 26.50 0.00 0.00 645.10
1906 0.00 0.00 b 0.00 e 0.00 d 12.00 38.04 b 339.50 258.00 80.00 16.50 0.00 0.00 744.04
1907 0.00 0.00 0.00 6.00 28.00 66.00 172.00 169.50 34.50 13.50 0.00 0.00 489.50
1908 0.00 0.00 0.00 1.00 0.50 53.50 336.50 256.00 96.00 5.00 0.00 0.00 748.50
1909 0.00 0.00 0.00 3.00 14.50 75.00 139.00 202.00 98.00 10.00 0.00 0.00 a 541.50
1910 0.00 0.00 0.00 7.50 59.00 66.00 256.50 206.50 71.00 30.00 0.00 0.00 696.50
1911 0.00 0.00 0.00 0.00 7.00 66.00 323.00 176.50 21.50 4.00 0.00 0.00 598.00
1912 0.00 0.00 0.00 0.00 33.00 96.00 180.00 172.00 79.00 0.00 0.00 0.00 560.00
1913 0.00 0.00 0.00 3.50 30.00 33.00 253.00 303.00 147.00 9.00 0.00 0.00 778.50
1914 0.00 0.00 2.00 3.00 22.00 118.00 258.00 224.00 13.00 0.00 0.00 0.00 a 640.00
1915 0.00 0.00 0.00 0.00 2.50 61.00 214.50 252.50 40.50 2.00 0.00 0.00 573.00
1916 0.00 0.00 0.00 0.00 0.00 70.50 201.00 189.50 57.50 4.50 0.00 0.00 523.00
1917 0.00 0.00 0.00 a 0.00 0.00 73.00 280.50 211.00 74.00 54.00 0.00 0.00 692.50
1918 0.00 0.00 0.00 3.50 5.50 196.00 149.50 182.50 86.00 21.00 0.00 0.00 644.00
1919 0.00 0.00 0.00 5.50 39.50 77.50 203.00 216.00 69.00 0.00 0.00 0.00 610.50
1920 0.00 0.00 0.00 1.00 19.50 61.50 114.00 222.00 50.00 0.00 0.00 0.00 468.00
1921 0.00 0.00 a 0.00 2.00 11.50 86.50 245.50 129.50 72.00 26.50 0.00 0.00 573.50
1922 0.00 0.00 0.00 0.00 30.00 128.00 297.50 130.50 168.00 0.00 0.00 0.00 754.00
1923 0.00 0.00 0.00 0.00 10.00 19.66 a 143.50 138.50 152.50 3.50 0.00 0.00 467.66
1924 0.00 0.00 0.00 10.50 57.50 151.00 207.50 230.50 113.00 21.00 0.00 0.00 791.00
1925 0.00 0.00 3.50 0.00 33.00 170.00 251.50 158.00 11.00 7.50 0.00 0.00 634.50
1926 0.00 0.00 1.50 35.00 44.50 237.50 295.50 208.50 47.00 18.00 0.00 0.00 887.50
1927 0.00 0.00 0.00 14.00 40.00 116.50 268.00 182.50 22.50 4.50 0.00 0.00 648.00
1928 0.00 0.00 0.00 0.00 37.50 78.50 279.50 216.00 107.50 15.50 0.00 0.00 734.50
1929 0.00 0.00 0.00 0.00 15.00 145.00 178.00 230.00 112.50 25.50 0.00 0.00 706.00
1930 0.00 0.00 1.00 1.50 1.50 110.50 229.50 194.50 52.00 34.00 0.00 0.00 624.50
1931 0.00 0.00 0.00 11.50 98.00 84.00 389.00 258.00 72.00 10.00 0.00 0.00 922.50
1932 0.00 0.00 0.00 0.00 37.50 204.00 238.50 263.50 248.50 40.50 0.00 0.00 1032.50
1933 0.00 0.00 0.00 8.00 34.00 83.00 343.50 290.50 67.00 93.50 0.00 0.00 919.50
1934 0.00 0.00 0.00 6.50 31.50 131.00 230.50 274.00 181.50 18.50 0.00 0.00 873.50
1935 0.00 0.00 0.00 0.50 25.00 147.50 225.50 284.00 172.50 28.50 0.00 0.00 883.50
1936 0.00 0.00 0.00 8.00 65.50 101.00 296.50 302.50 156.00 34.10 a 0.00 0.00 963.60
1937 0.00 0.00 0.00 0.00 29.00 101.50 287.50 258.00 131.00 11.50 0.00 0.00 818.50
1938 0.00 0.00 0.00 3.50 42.00 170.50 303.00 197.00 124.50 0.00 0.00 0.00 840.50
1939 0.00 0.00 0.00 10.00 41.00 135.00 260.00 234.50 176.00 27.50 0.00 0.00 884.00
1940 0.00 0.00 0.00 4.00 58.00 197.50 188.50 239.00 41.00 27.00 0.00 0.00 755.00
1941 0.00 0.00 0.00 0.00 39.00 51.50 311.50 146.00 71.00 13.00 5.50 0.00 637.50
1942 0.00 0.00 0.00 0.00 20.00 79.00 294.50 273.50 132.50 32.50 0.00 0.00 832.00
1943 0.00 0.00 0.00 2.07 a 46.50 56.50 230.50 166.50 195.00 16.50 0.00 0.00 713.57
1944 0.00 0.00 0.00 0.00 23.00 68.00 227.00 211.50 190.50 5.50 0.00 0.00 725.50
1945 0.00 0.00 0.00 7.50 5.00 145.00 314.00 206.50 159.31 a 33.50 0.50 0.00 871.31
1946 0.00 0.00 0.00 7.00 13.50 47.50 237.00 251.50 77.50 9.00 0.00 0.00 643.00
1947 0.00 0.00 9.00 28.50 83.50 112.00 111.00 176.50 198.50 34.50 0.00 0.00 753.50
1948 0.00 0.00 0.00 0.00 3.50 107.00 192.50 181.00 160.00 13.50 0.00 f 0.00 c 657.50
1949 0.00 0.00 0.00 5.00 24.50 174.00 247.50 158.50 164.00 32.00 1.50 0.00 807.00
1950 0.00 0.00 0.00 17.50 94.00 107.50 346.00 314.50 144.50 35.50 6.00 0.00 1065.50
1951 0.00 0.00 0.00 16.50 70.00 146.50 231.50 279.00 192.50 11.50 0.50 0.00 948.00
1952 0.00 0.00 2.50 2.00 91.50 48.50 336.50 240.50 231.50 76.00 0.00 0.00 1029.00
1953 0.00 0.00 0.00 9.00 3.50 56.50 309.50 162.00 236.00 21.38 b 0.00 0.00 797.88
1954 0.00 0.00 0.00 47.00 39.50 100.50 286.50 175.00 94.00 8.00 0.00 0.00 750.50
1955 0.00 0.00 0.00 0.00 61.00 117.00 200.00 305.50 196.50 38.50 1.50 0.00 920.00
1956 0.00 0.00 0.00 2.50 32.03 a 118.50 282.44 d 171.50 146.50 43.00 0.00 0.00 796.48
1957 0.00 0.00 0.00 11.50 22.50 212.50 244.50 183.50 155.00 0.00 0.00 0.00 829.50
1958 0.00 0.00 0.00 0.00 33.50 121.00 329.50 404.50 202.00 75.50 0.00 0.00 1166.00
1959 0.00 0.00 0.00 2.00 21.50 132.00 363.50 281.00 94.50 77.50 0.00 0.00 972.00
1960 0.00 b 0.00 0.00 6.00 15.00 271.00 380.00 276.00 176.00 6.00 0.00 j 0.00 1130.00
1961 0.00 0.00 0.00 8.50 2.00 245.00 327.05 a 324.50 110.50 72.50 0.00 0.00 1090.05
1962 0.00 0.00 0.00 6.00 3.00 149.00 292.00 229.00 167.50 10.00 0.50 0.00 857.00
1963 0.00 0.00 0.00 0.00 36.00 116.50 176.50 214.50 162.50 21.50 0.00 0.00 727.50
1964 0.00 0.00 0.00 3.00 3.00 94.50 241.50 255.00 107.50 68.00 0.00 0.00 772.50
1965 0.00 0.00 0.00 17.50 22.00 64.00 248.00 235.00 63.50 56.50 0.00 0.00 706.50
1966 0.00 0.00 3.00 25.86 a 53.00 121.50 170.00 268.00 152.50 37.00 2.50 0.00 833.36
1967 0.00 0.00 0.00 0.00 77.50 154.50 323.50 389.00 238.00 4.50 5.50 0.00 1192.50
1968 0.00 0.00 1.00 6.50 19.00 175.00 302.00 193.50 179.50 11.50 2.00 0.00 890.00
1969 0.00 0.00 0.00 0.00 86.50 106.50 294.50 305.50 215.00 2.00 0.00 0.00 1010.00
1970 0.00 0.00 0.50 0.00 88.50 170.50 338.00 255.50 152.00 35.50 0.00 0.00 1040.50
1971 0.00 0.00 0.00 0.00 5.00 70.00 297.00 284.50 167.50 61.50 0.00 0.00 885.50
1972 0.00 0.00 3.00 0.00 55.00 148.97 a 274.00 283.00 71.50 12.00 0.00 0.00 847.47
1973 0.00 0.00 0.00 7.50 108.50 218.50 297.00 220.00 101.00 6.00 0.00 0.00 958.50
1974 0.00 0.00 0.00 0.50 46.50 152.50 262.50 300.50 228.00 54.50 0.00 0.00 1045.00
1975 0.00 0.00 0.00 0.00 76.50 143.50 240.50 226.50 190.50 10.50 0.00 0.00 888.00
1976 0.00 0.00 0.00 0.00 39.50 0.00 z 261.50 157.50 134.00 36.50 0.00 0.00 629.00
1977 0.00 0.00 0.00 a 1.00 1.50 202.00 296.50 293.00 108.50 10.00 0.00 0.00 912.50
1978 0.00 0.00 0.00 0.00 37.00 74.50 290.00 305.50 112.00 78.50 0.00 0.00 897.50
1979 0.00 0.00 0.00 0.00 82.50 160.50 292.50 198.50 208.00 49.08 a 0.00 0.00 991.08
1980 0.00 0.00 0.00 a 0.50 22.00 56.00 299.50 217.50 135.50 113.00 1.50 0.00 845.50
1981 0.00 0.00 0.00 36.00 37.00 215.00 309.50 273.00 165.00 5.00 0.00 0.00 1040.50
1982 0.00 0.00 0.00 0.00 57.50 108.50 222.50 236.50 120.50 9.50 0.00 0.00 755.00
1983 0.00 0.00 0.00 0.00 75.50 96.50 176.50 255.50 201.50 0.00 z 0.00 0.00 805.50
1984 0.00 0.00 0.00 2.00 76.00 133.50 422.50 271.00 215.50 16.50 0.00 0.00 1137.00
1985 0.00 0.00 z 0.00 0.00 z 14.50 255.50 380.00 212.00 79.00 52.00 0.00 z 0.00 993.00
1986 0.00 0.00 4.00 8.50 58.50 165.50 279.00 334.50 103.50 35.50 0.00 0.00 989.00
1987 0.00 0.00 0.00 19.00 116.50 218.00 146.00 320.00 172.00 67.00 0.00 0.00 1058.50
1988 0.00 0.00 0.00 4.00 27.00 125.50 353.00 266.00 167.50 52.00 0.00 0.00 995.00
1989 0.00 0.00 0.00 52.50 37.00 95.50 172.50 0.00 z 107.50 11.00 0.00 0.00 476.00
1990 0.00 0.00 0.00 5.50 28.50 89.00 294.50 247.00 119.00 24.50 0.00 0.00 808.00
1991 0.00 0.00 0.00 0.00 9.50 70.00 320.00 183.50 258.00 158.00 0.00 0.00 999.00
1992 0.00 0.00 0.00 9.50 117.00 169.00 237.00 297.00 149.50 39.50 0.00 0.00 1018.50
1993 0.00 0.00 0.00 0.00 5.00 111.00 187.00 205.50 139.50 23.50 0.00 0.00 671.50
1994 0.00 0.00 0.00 2.00 18.00 104.00 303.00 183.50 146.00 13.00 0.00 0.00 769.50
1995 0.00 0.00 0.00 0.00 18.00 107.00 230.50 236.00 131.00 16.00 0.00 0.00 738.50
1996 0.00 0.00 0.50 10.00 27.00 124.50 374.50 285.50 105.00 58.00 0.00 0.00 985.00
1997 0.00 0.00 1.50 0.00 88.50 66.00 254.50 195.00 121.00 6.50 0.00 0.00 733.00
1998 0.00 0.00 0.00 9.00 0.00 60.50 262.50 312.00 185.00 0.00 0.00 0.00 829.00
1999 0.00 0.00 0.00 5.50 23.50 105.00 157.50 191.00 0.00 z 31.00 0.00 0.00 513.50
2000 0.00 0.00 0.00 a 5.50 54.77 a 217.00 161.00 206.50 140.50 18.00 0.00 0.00 803.27
2001 0.00 a 0.00 0.50 2.59 a 130.00 103.00 231.50 0.00 z 141.50 68.72 a 0.00 0.00 677.80
2002 0.00 a 0.00 1.00 4.14 a 29.50 106.00 285.50 0.00 z 150.50 27.50 0.00 0.00 604.14
2003 0.00 0.00 0.00 0.00 49.50 130.50 320.50 188.00 177.00 33.00 0.00 0.00 898.50
2004 0.00 0.00 2.00 0.00 z 19.00 87.00 265.00 220.00 118.50 26.00 0.00 0.00 737.50
2005 0.00 0.00 1.00 0.00 0.00 z 47.50 331.00 265.50 62.50 3.50 0.00 0.00 711.00
2006 0.00 0.00 0.00 13.50 50.50 169.50 390.50 221.50 128.00 3.50 0.00 0.00 977.00
2007 0.00 0.00 2.50 1.00 37.50 88.00 226.00 206.50 77.07 a 2.14 b 0.00 0.00 640.71
2008 0.00 0.00 0.00 j 1.50 58.00 97.00 250.00 251.50 115.50 2.21 c 0.00 d 0.00 c 775.71
2009 0.00 0.00 0.00 26.00 73.37 a 112.50 287.50 218.00 187.50 d 1.00 0.00 0.00 z 905.87
2010 0.00 f 0.00 0.00 0.00 f 0.00 75.00 i 231.00 168.00 118.93 b 0.00 z 0.00 0.00 517.93
2011 0.00 e 0.00 g 0.00 e 1.15 d 2.50 g 85.71 b 220.74 b 230.50 154.00 g 18.82 c 0.00 a 0.00 g 556.93
2012 0.00 e 0.00 b 0.00 f 19.62 d 0.00 z 44.00 h 166.50 f 152.50 n 85.50 l 40.00 g 0.00 c 0.00 e 19.62
2013 0.00 f 0.00 f 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 0.34 5.58 35.67 115.32 256.08 227.73 124.88 24.99 0.24 0.00 793.10
S.D. 0.00 0.00 1.11 9.31 29.86 53.31 65.99 55.75 58.28 26.17 0.97 0.00 177.16
SKEW 0.00 0.00 5.04 2.79 0.98 0.69 -0.03 0.34 0.04 1.96 4.86 0.00 -0.04
MAX 0.00 0.00 9.00 52.50 130.00 271.00 422.50 404.50 258.00 158.00 6.00 0.00 1192.50
MIN 0.00 0.00 0.00 0.00 0.00 15.50 111.00 90.50 0.50 0.00 0.00 0.00 334.67
NO YRS 119 118 118 117 117 116 118 115 117 117 116 117 102