BERKELEY, CALIFORNIA

Monthly Total Cooling Degree Days

(040693)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201301
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 0.00 9.00 1.00 1.00 0.00 0.50 0.00 0.00 11.50
1894 0.00 0.00 0.00 0.50 0.00 0.00 4.00 27.38 a 62.50 16.00 0.50 0.00 110.88
1895 0.00 0.00 0.00 0.00 27.90 a 25.00 14.50 10.00 26.00 6.50 20.50 0.00 130.40
1896 0.00 0.00 0.00 0.00 23.00 12.50 27.00 7.00 3.00 14.50 0.00 0.00 87.00
1897 0.00 0.00 0.00 9.00 20.00 23.00 20.00 0.00 27.50 10.00 0.00 0.00 109.50
1898 0.00 0.00 0.00 11.00 0.00 37.50 19.00 4.50 3.00 13.50 3.00 0.00 91.50
1899 4.50 5.50 0.00 4.50 0.00 b 3.50 2.00 3.00 0.00 30.00 0.00 0.00 53.00
1900 0.00 0.00 0.00 0.00 0.00 8.00 11.37 a 16.00 41.00 0.00 z 1.50 0.00 77.87
1901 0.00 0.00 z 0.00 a 0.00 a 1.50 19.29 b 3.00 5.50 3.50 42.00 0.00 b 0.00 74.79
1902 0.00 z 0.00 z 0.00 z 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
1903 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
1904 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
1905 0.00 0.00 0.00 0.00 z 4.50 0.00 52.50 0.00 3.00 5.00 0.00 0.00 65.00
1906 0.00 0.00 a 0.00 4.00 0.00 22.50 20.00 9.50 23.50 14.95 c 0.00 b 0.00 94.45
1907 0.00 0.00 0.00 6.50 3.50 11.00 0.00 z 6.50 0.00 z 0.00 z 0.00 z 0.00 z 27.50
1908 0.00 0.00 z 1.50 3.50 5.50 11.00 8.00 9.50 24.00 4.00 0.00 0.00 67.00
1909 0.00 0.00 0.00 0.50 5.50 17.00 11.00 6.00 49.00 12.00 0.00 0.00 101.00
1910 0.00 0.00 0.00 5.00 24.00 0.00 0.50 0.00 1.00 22.00 0.00 0.00 52.50
1911 0.00 0.00 z 0.50 0.00 11.00 5.00 3.50 1.50 1.00 14.50 0.00 0.00 37.00
1912 0.00 0.00 0.00 0.00 6.50 26.50 1.00 5.00 69.50 18.00 0.00 0.00 126.50
1913 0.00 0.00 0.00 7.00 0.50 5.50 29.00 37.00 90.50 45.50 0.00 0.00 f 215.00
1914 0.00 0.00 29.00 4.00 0.00 9.50 0.00 1.00 19.00 26.50 1.50 0.00 90.50
1915 0.00 0.00 10.00 0.00 5.00 10.50 58.50 29.00 14.50 28.00 0.00 0.00 155.50
1916 0.00 0.00 4.00 9.00 2.50 0.00 18.50 0.50 f 23.50 0.00 0.00 0.00 z 57.50
1917 0.00 0.00 0.00 0.00 0.00 28.00 30.50 0.00 a 0.00 z 0.00 z 0.00 0.00 58.50
1918 0.00 0.00 0.00 13.00 0.00 23.50 4.00 13.50 10.00 41.00 0.00 0.00 105.00
1919 0.00 0.00 0.00 0.00 5.00 13.50 9.00 10.00 35.00 29.50 0.50 0.00 z 102.50
1920 0.00 0.00 0.00 0.00 8.00 26.50 4.00 21.50 13.50 3.00 0.00 0.00 76.50
1921 0.00 0.00 0.00 19.50 0.00 58.50 53.50 7.50 45.00 27.50 9.00 0.00 220.50
1922 0.00 0.00 0.00 0.00 20.00 12.50 3.00 15.00 43.00 9.50 0.00 0.00 103.00
1923 0.00 0.00 10.50 0.00 2.00 0.00 13.00 28.50 48.00 18.50 0.00 0.00 120.50
1924 0.00 0.00 0.00 12.00 16.50 2.00 0.00 0.00 9.50 8.00 0.00 0.00 48.00
1925 0.00 0.00 0.00 0.50 0.00 20.50 3.50 5.00 1.50 15.50 0.00 0.00 46.50
1926 0.00 1.00 5.17 a 11.00 0.50 4.50 7.00 6.50 10.50 23.00 8.50 0.00 77.67
1927 0.00 0.00 0.00 0.50 11.50 20.00 0.00 0.00 10.50 17.00 2.50 0.00 62.00
1928 0.00 0.00 0.50 0.00 0.00 4.50 0.00 0.00 38.50 6.50 0.00 0.00 50.00
1929 0.00 0.00 4.00 0.00 0.00 49.50 45.50 5.50 3.00 38.00 8.50 0.00 154.00
1930 0.00 7.50 11.50 0.00 0.00 2.00 3.00 0.00 0.00 28.00 4.00 0.00 56.00
1931 0.00 0.00 0.00 5.00 51.50 12.50 25.50 7.48 b 22.00 15.00 2.50 0.00 141.48
1932 0.00 0.00 0.00 0.00 7.00 0.50 2.00 4.50 25.00 14.50 22.50 0.00 76.00
1933 0.00 0.00 0.00 4.50 1.00 0.00 2.00 6.00 4.00 48.00 4.50 0.00 70.00
1934 0.00 0.00 7.00 0.00 10.00 14.50 5.00 6.00 36.00 11.50 0.50 0.00 90.50
1935 0.00 0.00 0.00 6.50 12.00 11.00 5.50 8.50 19.00 0.50 0.00 0.00 63.00
1936 0.00 0.00 2.50 4.00 15.00 9.00 9.50 0.50 49.50 21.00 0.00 d 0.00 111.00
1937 0.00 0.00 0.00 0.00 1.00 14.50 5.50 12.50 24.00 36.00 0.00 0.00 93.50
1938 0.00 0.00 0.00 e 2.00 0.50 0.00 1.00 9.50 10.00 9.00 0.00 0.00 32.00
1939 0.00 0.00 1.00 6.50 5.00 0.00 3.50 4.00 107.00 50.00 0.00 0.00 177.00
1940 0.00 0.00 0.00 7.50 0.00 0.00 5.50 2.50 15.00 26.50 0.00 0.00 57.00
1941 0.00 0.00 a 0.00 0.00 29.50 1.00 1.00 8.50 36.00 25.50 5.00 0.00 106.50
1942 0.00 0.00 0.00 0.00 13.00 8.50 3.50 0.00 11.50 14.50 0.00 1.00 52.00
1943 0.00 a 0.00 0.00 0.00 24.50 14.50 7.50 10.50 51.50 15.00 0.00 0.00 123.50
1944 0.00 0.00 0.00 0.00 0.00 0.00 0.00 8.00 25.50 9.00 0.00 0.00 42.50
1945 0.00 0.00 0.00 2.68 b 0.00 48.50 6.50 7.00 41.00 6.50 8.00 0.00 120.18
1946 0.00 0.00 0.00 4.50 0.00 3.00 7.00 12.00 51.50 22.00 0.00 0.00 100.00
1947 0.00 0.00 0.00 27.50 10.50 65.40 e 46.00 32.00 f 50.00 17.50 0.00 0.00 b 216.90
1948 0.00 0.00 0.00 0.00 0.00 e 0.00 z 25.00 24.50 20.00 15.00 0.00 0.00 84.50
1949 0.00 0.00 0.00 0.00 15.00 33.50 1.50 14.50 50.00 20.15 a 3.00 0.00 137.65
1950 0.00 0.00 1.50 6.00 6.00 10.00 5.00 31.00 63.00 21.50 17.00 0.00 161.00
1951 0.00 0.00 0.00 0.00 15.50 9.50 8.50 0.00 30.00 23.00 3.00 0.00 89.50
1952 0.00 0.00 11.00 1.00 18.00 2.00 12.00 7.50 30.50 13.50 0.00 o 0.00 h 95.50
1953 0.00 0.00 2.58 a 0.00 c 10.00 15.50 3.00 14.00 35.00 23.00 0.00 f 0.00 h 103.08
1954 0.00 a 0.00 a 0.00 3.50 4.50 20.17 a 22.50 10.00 37.50 8.50 0.00 0.00 106.67
1955 0.00 0.00 0.00 0.00 9.00 10.34 a 1.00 4.00 27.00 9.62 b 6.00 0.00 66.97
1956 0.00 0.00 0.00 0.00 14.00 20.00 2.00 3.50 31.50 0.00 5.00 0.00 76.00
1957 0.00 0.00 0.00 14.00 1.50 43.00 26.00 14.00 27.00 0.00 0.00 0.00 125.50
1958 0.00 0.00 0.00 5.50 7.00 9.50 0.00 8.00 101.50 20.50 0.00 0.00 152.00
1959 0.00 0.00 4.50 10.00 3.00 21.50 30.50 34.00 27.50 74.00 4.50 0.00 209.50
1960 0.00 0.00 4.00 7.00 0.00 38.50 7.00 0.00 19.50 12.50 0.00 0.00 88.50
1961 0.00 0.00 0.00 3.50 0.00 38.00 47.50 20.00 50.00 38.00 0.00 0.00 197.00
1962 0.00 0.00 0.00 7.50 0.00 18.50 0.00 14.00 7.50 3.50 1.03 a 0.00 52.03
1963 0.00 0.00 0.00 0.00 0.00 0.50 15.00 13.00 35.50 0.50 0.00 0.00 64.50
1964 0.00 0.00 0.00 4.00 0.00 11.67 c 11.00 8.50 56.50 24.00 0.00 0.00 a 115.67
1965 0.00 0.00 0.00 5.00 0.00 a 0.00 0.00 11.00 4.50 38.23 a 0.00 0.00 58.73
1966 0.00 0.00 0.00 9.50 0.00 28.33 c 0.00 n 4.00 k 27.86 b 15.00 4.00 0.00 84.69
1967 0.00 0.00 0.00 c 0.00 11.50 0.00 a 1.15 d 0.00 b 28.33 c 37.20 a 8.50 0.00 86.68
1968 0.00 0.00 0.50 1.00 0.50 20.50 12.00 21.00 48.50 8.50 0.00 0.00 112.50
1969 0.00 a 0.00 1.50 0.00 9.09 b 2.00 1.50 22.50 23.00 12.50 2.50 0.00 74.59
1970 0.00 0.00 2.50 0.00 37.00 2.00 31.50 20.00 104.00 15.00 0.00 0.00 212.00
1971 0.00 0.00 0.00 0.00 0.00 0.00 v 0.00 z 27.50 106.50 12.50 0.00 0.00 146.50
1972 0.00 0.00 5.00 0.50 11.50 11.00 41.50 11.00 12.50 15.50 0.00 0.00 108.50
1973 0.00 0.00 0.00 2.50 6.00 83.00 23.00 0.50 57.00 21.00 0.00 0.00 193.00
1974 0.00 0.00 0.00 0.50 6.00 16.00 14.50 7.50 22.50 48.50 0.00 0.00 115.50
1975 0.00 0.00 0.00 0.00 27.50 0.00 13.50 17.50 24.00 5.00 0.00 0.00 87.50
1976 0.00 0.00 0.00 0.00 30.00 120.00 5.00 23.50 43.50 38.50 17.50 0.00 278.00
1977 0.00 0.00 0.00 4.00 0.00 8.50 23.50 34.50 13.00 9.50 0.00 0.00 93.00
1978 0.00 0.00 5.50 0.50 47.50 0.00 2.50 11.00 47.00 35.00 3.00 0.00 152.00
1979 0.00 0.00 0.00 0.00 28.50 35.50 29.50 27.50 91.50 11.50 0.00 0.00 224.00
1980 0.00 0.00 0.00 1.00 0.00 14.50 12.00 6.00 30.50 55.00 5.50 0.00 124.50
1981 0.00 0.00 0.00 22.00 0.00 101.00 19.00 10.50 15.00 5.50 0.00 0.00 173.00
1982 0.00 0.00 0.00 4.50 6.00 1.00 6.00 17.50 32.00 17.50 0.00 z 0.00 84.50
1983 0.00 0.00 0.00 0.00 11.50 11.00 35.00 39.00 93.50 28.00 0.00 0.00 218.00
1984 0.00 0.00 0.00 2.50 23.00 3.00 26.50 16.00 123.50 7.00 0.00 0.00 201.50
1985 0.00 0.50 0.00 8.50 1.50 10.00 48.00 6.50 1.00 29.00 1.50 0.00 106.50
1986 0.00 1.00 3.50 2.00 0.00 9.50 8.50 0.00 0.50 20.00 1.50 0.00 46.50
1987 0.00 0.00 0.00 7.00 27.50 17.00 16.50 12.50 16.00 46.00 0.00 0.00 142.50
1988 0.00 1.00 1.00 13.50 10.00 7.50 36.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 69.00
1989 0.00 z 0.00 z 0.00 z 44.50 1.50 37.50 22.50 5.50 4.00 31.00 1.00 0.00 147.50
1990 0.00 0.00 0.00 1.50 5.00 18.00 7.50 15.00 26.00 27.50 0.00 0.00 z 100.50
1991 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
1992 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
1993 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 0.00
1994 0.00 0.00 0.00 0.00 2.00 20.00 m 1.50 21.00 17.00 k 19.00 0.00 0.00 43.50
1995 0.00 0.00 0.00 0.00 0.00 32.00 57.00 i 21.00 27.00 42.50 0.50 0.00 123.00
1996 0.00 0.00 0.00 27.00 22.50 27.00 16.00 10.50 16.00 23.77 a 0.00 0.00 142.77
1997 0.00 0.00 0.00 0.00 i 54.00 38.00 23.00 56.00 51.50 m 8.50 i 8.50 0.00 179.50
1998 0.00 0.00 0.00 3.50 0.00 16.00 21.00 m 45.47 a 35.00 6.00 0.00 0.00 105.97
1999 0.00 0.00 0.00 9.50 0.00 8.00 26.00 25.50 45.50 46.50 d 1.50 0.00 162.50
2000 0.00 0.00 0.00 13.00 29.50 43.50 3.50 30.00 68.00 2.50 0.00 0.00 190.00
2001 0.00 c 0.00 3.50 p 0.00 c 34.50 38.00 19.00 29.50 7.00 47.50 0.00 0.00 175.50
2002 0.00 0.00 0.00 3.00 3.00 29.00 25.50 40.00 54.50 24.50 0.00 0.00 179.50
2003 0.00 0.00 1.00 0.00 16.00 61.50 41.00 75.00 94.50 42.00 0.00 0.00 331.00
2004 0.00 0.00 24.50 33.00 8.00 24.00 20.00 33.50 126.00 30.00 0.00 0.00 299.00
2005 0.00 0.00 6.00 0.00 2.50 12.00 27.50 12.50 19.50 8.50 0.00 0.00 z 88.50
2006 0.00 f 0.00 0.00 0.00 12.50 42.50 74.00 15.50 28.00 10.00 0.00 0.00 182.50
2007 0.00 0.00 3.00 0.50 23.50 21.00 26.00 29.00 32.00 12.50 1.00 0.00 148.50
2008 0.00 z 0.00 0.00 11.00 38.00 61.50 19.00 27.50 53.00 48.00 14.50 0.00 272.50
2009 4.50 o 0.00 0.00 32.00 14.50 10.50 h 15.00 62.00 71.00 11.00 3.00 0.00 208.50
2010 0.00 0.00 0.00 0.00 0.00 20.00 3.00 32.50 53.40 e 34.50 15.50 0.00 158.90
2011 0.00 4.00 4.13 a 7.00 3.50 13.50 8.50 4.50 43.00 34.50 0.00 0.00 122.63
2012 0.00 0.00 0.00 6.50 2.50 20.50 4.00 0.00 z 0.00 51.00 8.50 0.00 93.00
2013 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 z 0.00
Period of Record Statistics
MEAN 0.04 0.19 1.51 4.69 9.26 19.02 14.89 14.26 34.40 21.30 2.21 0.01 118.76
S.D. 0.43 0.97 4.19 7.66 11.98 20.73 15.22 13.84 28.70 14.82 4.53 0.10 60.75
SKEW 10.39 6.09 4.46 2.73 1.65 2.19 1.38 1.67 1.22 0.83 2.67 10.15 1.08
MAX 4.50 7.50 29.00 44.50 54.00 120.00 74.00 75.00 126.00 74.00 22.50 1.00 331.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11.50
NO YRS 111 110 112 113 114 110 109 109 109 109 109 106 84