CHULA VISTA, CALIFORNIA

Monthly Total Cooling Degree Days

(041758)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1918 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 149.42 d 69.50 2.00 0.00 220.92
1919 2.00 0.00 0.00 0.00 0.00 13.50 66.00 70.00 27.50 4.00 8.00 0.00 191.00
1920 0.00 5.50 0.00 0.00 0.00 0.00 34.50 101.00 21.00 0.00 0.00 0.00 162.00
1921 0.00 1.00 0.00 7.50 0.00 0.50 78.00 67.00 39.50 26.00 30.00 0.00 249.50
1922 0.00 0.00 0.00 0.00 0.00 11.50 51.00 112.00 91.00 9.00 0.00 0.00 274.50
1923 0.00 0.00 0.00 0.00 6.00 1.00 28.50 48.00 54.50 8.00 15.00 0.00 161.00
1924 0.00 0.00 0.00 0.00 1.50 10.00 31.50 29.00 24.50 0.00 2.50 0.00 99.00
1925 0.00 0.00 0.00 0.50 1.00 23.00 125.00 64.00 16.50 2.00 8.00 0.00 240.00
1926 0.00 3.00 9.00 3.50 4.00 23.50 52.50 97.50 10.50 18.00 11.50 0.00 233.00
1927 0.00 0.00 0.00 0.00 4.00 0.00 62.50 65.50 17.00 2.98 e 10.50 0.00 162.48
1928 0.00 0.00 a 0.00 0.00 0.00 1.03 a 21.00 32.50 13.00 0.00 5.50 0.00 73.03
1929 0.00 0.00 0.00 0.00 9.50 26.00 105.50 152.50 75.00 30.50 12.00 0.00 411.00
1930 0.00 4.50 8.50 0.00 0.00 4.66 a 96.50 125.00 31.50 19.00 19.50 0.00 309.16
1931 0.00 2.50 1.00 2.00 16.50 64.50 223.50 232.50 93.00 38.00 3.50 0.00 677.00
1932 0.00 0.00 0.00 0.00 4.00 2.00 9.50 23.50 7.00 0.00 11.50 0.00 57.50
1933 0.00 0.00 0.00 0.00 0.00 0.00 32.00 42.50 0.00 5.00 4.00 0.00 83.50
1934 0.00 0.00 6.20 a 0.00 8.50 3.50 97.50 101.00 101.00 5.50 0.00 7.00 330.20
1935 0.00 2.00 0.00 0.00 0.00 0.00 54.00 142.50 46.00 3.00 0.00 0.00 247.50
1936 0.00 0.00 0.00 0.00 0.00 13.50 124.00 155.50 48.50 8.00 5.50 1.00 356.00
1937 0.00 0.00 0.00 0.00 1.50 9.00 69.00 78.00 77.50 5.00 0.00 0.50 240.50
1938 0.00 0.50 0.00 0.00 0.50 0.00 47.50 87.50 94.50 19.50 0.00 0.00 250.00
1939 0.00 0.00 0.00 4.00 3.50 4.50 61.50 107.00 209.50 44.00 0.00 0.00 434.00
1940 0.00 0.00 0.00 22.00 7.00 3.50 43.50 64.00 40.00 26.50 16.50 0.00 223.00
1941 0.00 0.00 0.00 0.00 14.00 1.00 45.50 80.50 28.00 13.50 1.00 0.00 183.50
1942 0.00 0.00 0.00 0.00 0.00 0.00 55.50 75.00 10.50 13.50 0.00 a 0.00 154.50
1943 0.00 4.00 0.00 0.00 1.00 0.00 54.00 114.00 48.50 14.00 1.00 0.00 236.50
1944 0.00 0.00 0.00 0.00 7.50 0.00 11.00 50.50 30.00 0.50 0.00 0.00 99.50
1945 0.00 0.00 0.00 0.00 0.00 1.00 56.50 131.50 112.50 31.00 1.00 0.00 333.50
1946 0.00 0.00 0.00 4.00 0.00 0.00 71.00 122.00 87.00 4.50 0.00 0.00 288.50
1947 0.00 0.00 2.50 15.50 0.00 14.00 50.00 115.50 97.00 8.00 0.00 0.00 302.50
1948 0.00 0.00 0.00 3.00 0.00 1.00 3.50 12.00 34.00 0.50 0.00 0.00 54.00
1949 0.00 0.00 0.00 0.00 0.00 14.50 38.00 61.50 72.00 5.50 21.00 0.00 212.50
1950 0.00 0.00 1.00 0.00 0.00 0.00 50.50 29.50 23.00 l 12.50 19.50 0.00 113.00
1951 0.00 0.00 0.00 j 0.00 0.00 4.00 54.50 50.50 20.17 a 13.00 1.50 0.00 143.67
1952 0.00 0.00 0.00 0.00 0.00 0.00 45.50 73.00 77.50 5.00 8.00 0.00 209.00
1953 0.00 0.00 0.00 0.00 26.00 0.50 97.50 62.00 36.50 32.50 10.00 0.00 265.00
1954 0.00 9.00 0.00 0.00 0.00 2.50 117.50 96.00 63.00 0.00 1.00 0.00 289.00
1955 0.00 0.00 0.00 0.00 1.00 0.00 f 23.50 i 97.50 h 121.50 f 0.00 i 4.00 h 0.00 g 1.00
1956 0.00 f 0.00 h 0.00 j 0.00 g 24.00 i 9.00 h 43.00 i 50.50 i 72.00 i 18.50 h 5.50 k 0.00 m 0.00
1957 0.00 e 0.00 g 0.00 e 1.50 g 0.00 f 32.50 h 56.50 i 108.50 h 34.50 j 4.00 h 0.00 j 0.50 h 0.00
1958 0.00 g 0.00 h 0.00 g 8.50 g 4.00 h 13.50 i 56.00 h 118.50 j 89.50 h 78.00 h 0.50 j 0.00 h 0.00
1959 0.00 h 0.00 c 1.50 h 3.50 h 0.00 i 16.50 h 126.00 i 126.50 i 70.00 j 6.50 h 0.00 k 2.50 g 0.00
1960 0.00 i 0.00 h 0.00 h 0.00 g 3.00 i 2.50 h 72.50 l 84.50 h 81.50 i 25.50 i 1.00 g 0.00 h 0.00
1961 3.00 h 0.00 i 0.00 g 1.00 i 0.00 j 2.50 h 61.00 j 83.00 i 25.50 l 27.00 i 10.50 j 0.00 f 0.00
1962 0.00 f 0.00 e 0.00 g 0.00 i 0.00 g 0.00 j 13.50 i 49.00 h 15.00 k 2.00 h 0.00 l 0.00 i 0.00
1963 2.00 h 1.00 f 0.00 f 0.00 d 0.00 g 0.00 f 23.50 h 88.50 j 177.50 g 35.00 i 0.00 f 0.00 i 0.00
1964 0.00 f 0.00 d 0.00 f 6.60 e 0.00 g 0.00 e 26.50 f 74.00 j 28.50 f 60.00 g 2.40 e 0.00 9.00
1965 1.00 f 0.00 d 0.00 e 1.11 c 0.00 i 0.00 h 5.00 i 76.50 h 19.80 e 69.50 g 1.00 g 0.00 g 20.91
1966 0.00 i 0.00 g 0.50 g 0.50 h 0.50 i 13.50 g 40.00 i 170.50 b 67.50 34.50 21.00 0.00 b 293.50
1967 0.00 0.00 0.00 0.00 12.40 a 0.00 74.83 b 165.50 180.50 45.00 4.50 0.00 482.73
1968 0.00 0.00 0.00 a 5.00 1.55 a 4.62 d 85.77 a 96.50 99.00 7.00 0.50 0.00 a 299.93
1969 0.00 a 0.00 0.00 1.00 0.00 1.03 a 54.00 132.00 61.00 0.50 8.79 a 1.00 259.33
1970 0.00 1.00 0.00 0.00 5.50 5.50 67.50 158.21 b 60.50 25.00 2.59 a 0.00 325.79
1971 0.50 0.00 a 0.00 3.50 0.50 2.00 49.50 223.50 124.50 51.00 0.00 0.00 455.00
1972 0.00 0.00 0.00 0.00 4.50 17.50 131.75 a 157.50 79.50 36.00 0.00 0.00 426.75
1973 0.00 0.00 0.00 0.00 z 1.50 20.00 21.00 67.00 30.50 9.00 0.00 0.00 149.00
1974 0.00 0.50 0.00 0.00 0.00 8.50 104.00 76.00 60.00 18.50 12.50 0.00 280.00
1975 0.00 0.00 0.00 0.00 0.00 0.00 26.00 40.00 89.00 6.50 4.50 0.00 166.00
1976 10.00 0.00 0.00 0.00 0.00 41.00 90.50 80.50 146.50 50.00 45.00 0.00 463.50
1977 1.50 0.00 0.00 0.00 a 0.00 5.00 71.00 138.50 89.00 32.00 2.50 0.00 339.50
1978 0.00 4.00 18.50 0.00 23.50 39.00 62.00 96.50 140.00 58.50 0.00 0.00 442.00
1979 0.00 0.00 0.00 0.00 16.50 58.00 58.00 132.00 184.00 30.00 0.00 0.00 478.50
1980 0.00 0.52 a 0.00 0.00 0.00 a 21.50 94.50 170.00 58.50 12.50 6.00 0.00 a 363.52
1981 1.00 2.50 0.00 3.50 5.50 108.50 180.50 187.00 114.50 9.50 2.50 0.00 615.00
1982 0.00 2.00 3.00 2.50 6.20 a 5.00 114.50 179.50 171.50 69.50 3.50 0.00 557.20
1983 5.00 0.00 0.00 2.00 19.00 28.50 145.00 292.50 282.50 135.50 19.50 0.00 929.50
1984 2.00 0.00 0.00 8.00 25.50 61.50 283.50 262.00 322.00 62.00 0.00 0.00 1026.50
1985 0.00 3.50 0.00 9.00 2.50 73.45 a 269.00 209.00 136.00 93.00 2.50 0.00 797.95
1986 5.50 9.00 13.00 26.50 19.24 b 71.00 159.02 d 214.50 69.00 43.63 d 10.50 0.00 640.89
1987 1.00 6.50 2.00 25.50 21.00 32.50 63.50 143.00 141.00 168.00 13.00 0.00 617.00
1988 0.00 5.50 26.50 7.50 18.00 16.00 165.50 177.00 162.00 73.50 1.50 1.50 654.50
1989 1.50 11.50 2.50 71.00 4.00 46.00 147.50 191.00 168.50 75.00 0.00 z 6.00 724.50
1990 0.00 0.50 1.50 k 6.00 30.50 121.50 208.00 203.50 192.00 119.50 20.50 0.00 902.00
1991 0.00 0.00 1.00 4.50 5.00 9.50 70.50 144.50 131.00 115.50 0.00 z 0.00 481.50
1992 0.00 9.50 1.50 47.00 123.00 86.00 216.50 311.00 215.50 80.00 13.50 0.00 z 1103.50
1993 0.00 0.00 5.50 11.00 35.00 105.50 156.50 177.00 148.50 90.50 13.00 0.00 742.50
1994 0.50 0.00 9.50 2.00 1.50 84.50 132.00 270.50 209.00 85.50 0.00 0.00 795.00
1995 0.50 19.00 3.50 7.50 2.50 22.50 136.50 234.50 220.00 80.00 4.00 0.00 730.50
1996 4.50 2.00 4.00 35.00 58.50 86.00 174.00 237.00 170.19 d 43.00 24.00 0.00 838.19
1997 5.00 2.00 31.50 31.00 103.50 96.00 153.50 280.50 326.50 135.00 37.00 1.00 1202.50
1998 0.00 z 0.00 0.00 0.00 0.00 z 0.00 z 150.00 259.00 199.50 34.62 a 0.00 0.50 643.62
1999 0.00 0.00 0.00 13.89 c 1.00 8.89 c 141.50 131.75 a 21.00 t 96.00 j 1.50 h 0.00 f 297.03
2000 2.77 c 2.00 i 0.00 e 0.52 a 10.52 c 78.89 c 127.32 c 229.83 b 169.66 a 28.23 c 0.00 h 0.00 d 647.73
2001 0.00 11.85 b 4.00 9.64 b 15.50 b 62.50 128.13 a 146.98 b 95.89 b 53.45 b 0.00 c 0.00 e 527.95
2002 0.00 d 0.00 n 0.00 p 0.00 5.50 4.50 79.00 99.00 85.50 j 15.00 39.00 0.00 242.00
2003 32.00 2.50 3.58 e 4.00 i 3.50 j 11.00 o 70.00 q 92.50 t 0.00 z 96.50 f 0.60 e 0.00 z 38.68
2004 0.00 j 0.00 i 6.50 p 15.50 y 64.38 e 30.00 f 99.50 k 92.00 m 116.50 o 23.00 m 0.00 0.00 p 64.38
2005 8.50 i 0.00 0.00 k 4.00 j 6.00 i 29.50 g 106.00 g 127.00 j 68.50 m 0.00 z 20.50 m 3.00 q 0.00
2006 4.50 m 2.43 e 0.00 z 0.50 i 4.00 n 82.50 n 206.00 k 107.50 o 61.00 q 14.50 k 35.00 k 0.00 n 2.43
2007 0.50 i 0.00 g 7.00 j 0.00 f 15.00 l 10.00 l 87.50 k 151.50 m 86.00 q 39.50 p 15.00 p 0.00 p 0.00
2008 0.00 j 0.00 h 2.00 l 18.00 i 19.50 k 45.00 m 11.00 z 0.00 z 117.00 m 85.00 l 24.50 m 0.00 n 0.00
2009 5.50 f 3.00 0.50 28.00 g 9.50 51.50 194.50 224.50 212.00 29.50 3.50 0.00 728.50
2010 0.00 0.00 9.00 0.00 0.50 4.50 50.00 94.00 85.50 28.50 53.50 4.00 329.50
2011 6.50 0.00 4.50 9.00 9.30 a 19.50 134.00 125.00 100.50 45.50 9.64 b 0.00 463.44
2012 3.50 0.00 3.00 0.50 16.50 19.00 109.50 225.00 246.50 95.50 11.50 2.00 732.50
2013 0.00 2.50 5.00 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 7.50
Period of Record Statistics
MEAN 1.09 1.61 2.30 5.29 10.34 23.43 94.01 132.79 102.42 35.36 8.08 0.32 391.81
S.D. 3.96 3.32 5.50 11.60 20.83 31.58 60.11 72.33 75.98 37.32 11.07 1.16 250.18
SKEW 6.43 2.90 3.56 3.50 3.67 1.49 1.00 0.52 0.93 1.44 2.03 4.51 1.08
MAX 32.00 19.00 31.50 71.00 123.00 121.50 283.50 311.00 326.50 168.00 53.50 7.00 1202.50
MIN 0.00 0.00 0.00 0.00 0.00 0.00 3.50 12.00 0.00 0.00 0.00 0.00 54.00
NO YRS 78 83 78 78 77 76 76 77 76 77 77 77 64