MT HAMILTON, CALIFORNIA

Monthly Total Cooling Degree Days

(045933)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 143.00 87.00 168.50 5.50 k 0.00 f 0.00 d 398.50
1949 0.00 o 0.00 k 0.00 z 0.00 x 3.21 b 120.00 a 190.50 67.00 132.00 19.00 31.00 0.00 562.71
1950 0.00 0.00 a 0.00 9.50 47.53 a 73.93 b 282.62 a 11.50 z 0.00 z 0.00 z 2.68 b 0.00 a 416.26
1951 0.00 c 0.00 z 0.00 a 7.50 26.50 87.00 215.50 203.00 168.50 10.33 a 0.00 a 0.00 718.33
1952 0.00 0.00 0.00 0.00 a 6.50 7.50 250.00 190.50 148.00 63.50 0.00 0.00 666.00
1953 0.00 0.00 0.00 0.00 0.00 a 13.00 208.50 74.00 134.50 0.00 z 0.00 z 2.50 432.50
1954 0.00 1.50 0.00 15.00 25.00 66.50 238.00 81.50 53.00 10.50 0.00 0.00 491.00
1955 0.00 0.00 a 0.00 0.00 14.50 32.50 103.85 a 265.00 181.73 d 31.00 0.00 a 0.00 b 628.58
1956 0.00 0.00 e 0.00 b 0.00 5.50 53.50 229.83 b 97.50 123.00 1.50 17.00 0.00 527.83
1957 0.00 0.00 0.00 1.00 7.00 129.00 165.50 109.00 138.00 0.00 0.00 2.50 552.00
1958 0.00 0.00 0.00 0.00 2.14 b 27.50 181.02 c 265.16 c 106.07 b 92.40 e 0.00 e 4.00 k 674.29
1959 0.00 d 0.00 a 0.00 s 1.67 c 3.44 d 70.38 d 305.00 g 226.41 c 34.00 g 84.70 c 3.00 e 0.00 i 389.60
1960 0.00 a 0.00 c 0.00 d 0.50 12.63 d 190.18 b 245.00 i 231.35 d 95.50 j 8.30 c 0.50 g 0.00 j 442.96
1961 0.00 e 0.00 e 0.00 f 7.50 b 0.00 v 223.97 a 231.50 h 168.00 f 58.93 b 90.00 h 0.00 c 0.00 d 290.39
1962 0.00 d 0.00 b 0.00 b 3.89 c 0.00 b 81.43 b 0.00 z 181.83 e 112.24 a 40.82 a 10.20 e 0.00 b 430.40
1963 0.00 c 0.00 b 0.00 c 0.00 c 17.22 d 50.50 119.72 b 151.00 138.33 c 14.50 n 0.00 d 0.00 e 476.78
1964 0.00 e 0.00 e 0.00 f 0.00 e 0.00 e 46.20 e 152.50 f 188.21 c 45.50 f 95.30 d 0.00 i 0.00 g 329.71
1965 0.00 g 0.00 d 0.00 f 2.00 f 14.93 d 21.00 i 117.00 f 173.17 b 0.00 z 101.27 a 0.00 b 0.00 d 289.36
1966 0.00 c 0.00 i 3.21 b 11.11 c 30.45 c 136.20 e 126.87 d 303.44 e 46.00 i 32.00 h 0.00 k 0.00 q 611.28
1967 0.00 h 0.00 e 0.00 d 0.00 b 50.50 h 94.80 e 235.00 g 417.31 e 125.77 d 29.21 e 5.00 c 0.00 a 672.09
1968 0.00 0.00 b 0.00 a 0.54 b 4.13 a 159.50 284.54 c 152.79 c 144.83 a 29.00 0.00 b 0.00 d 775.32
1969 0.53 b 0.00 0.00 p 0.00 a 28.79 c 12.00 g 269.50 302.77 a 151.00 3.10 a 2.50 0.00 e 758.19
1970 0.00 0.00 0.00 b 0.00 66.28 b 135.50 293.00 231.50 135.00 47.00 0.00 0.00 908.28
1971 0.00 0.00 0.00 0.00 0.00 44.50 258.50 261.00 175.00 80.00 0.00 b 0.00 d 819.00
1972 0.00 d 0.00 2.00 0.00 57.50 118.00 293.47 a 206.50 39.83 a 2.67 b 0.00 b 0.00 e 719.97
1973 0.00 c 0.00 a 0.00 a 0.00 83.50 178.45 a 268.31 b 221.00 79.66 a 15.50 0.00 a 0.00 b 846.41
1974 0.00 d 0.00 0.00 a 0.00 a 28.33 b 112.00 143.50 f 36.50 w 148.50 m 64.07 a 0.00 b 0.00 a 204.39
1975 0.50 0.00 0.00 0.00 36.50 106.00 162.48 b 151.50 198.00 27.50 0.00 0.00 682.48
1976 0.00 0.00 0.00 0.00 33.50 113.00 168.50 84.00 110.50 45.98 a 27.00 0.00 582.48
1977 0.00 0.00 0.00 0.00 5.50 161.50 176.70 a 242.00 103.00 36.50 0.00 0.00 725.20
1978 0.00 0.00 0.00 0.00 25.00 56.00 251.00 250.50 96.00 104.50 5.50 0.00 788.50
1979 0.00 0.00 0.00 0.00 47.00 110.00 244.00 127.50 173.00 26.50 0.00 0.00 b 728.00
1980 0.00 0.00 a 0.00 0.00 10.00 38.50 237.00 174.50 101.90 a 142.50 6.00 4.00 714.40
1981 0.00 0.00 0.00 1.00 11.50 199.50 273.00 277.00 168.00 9.00 1.50 0.00 a 940.50
1982 0.00 0.00 0.00 0.00 19.50 33.50 191.00 178.00 62.00 1.00 0.00 0.00 485.00
1983 0.00 0.00 a 0.00 0.00 69.00 25.50 101.50 184.50 176.00 12.50 0.00 a 0.00 569.00
1984 0.00 a 0.00 0.00 1.00 80.50 89.50 334.00 204.00 200.00 1.00 0.00 0.00 a 910.00
1985 0.00 0.00 0.00 14.00 0.00 181.03 a 268.00 122.50 10.50 20.00 0.00 z 0.00 z 616.03
1986 0.00 0.50 0.00 3.00 31.00 95.00 113.00 266.50 21.00 3.00 0.50 0.00 533.50
1987 0.00 0.00 0.00 3.10 a 54.25 c 122.00 63.00 219.00 161.50 55.50 0.00 0.00 a 678.35
1988 0.00 0.00 0.00 6.00 11.00 131.00 394.50 304.50 211.50 109.50 0.00 0.00 1168.00
1989 0.00 0.00 0.00 42.50 27.00 100.00 180.83 a 115.00 69.00 5.50 0.00 0.00 539.83
1990 0.00 0.00 0.00 0.00 0.00 53.00 244.50 199.00 64.00 22.00 0.00 0.00 582.50
1991 0.00 0.00 0.00 0.00 0.00 a 33.00 251.00 99.50 241.50 203.00 5.00 0.00 833.00
1992 0.00 0.00 0.00 0.00 37.00 77.50 118.32 a 272.00 121.00 48.50 0.00 0.00 674.32
1993 0.00 a 0.00 0.00 0.00 2.50 90.50 114.00 167.50 133.00 17.00 0.00 0.00 524.50
1994 0.00 b 0.00 0.00 0.00 6.50 90.00 253.00 207.00 111.00 6.50 0.00 0.00 674.00
1995 0.00 3.00 0.00 0.00 10.50 85.34 a 145.00 208.50 156.50 32.00 0.00 a 0.00 640.84
1996 0.00 0.00 0.00 0.00 19.50 98.50 327.00 318.00 92.50 69.50 0.00 0.00 925.00
1997 0.00 0.00 0.00 0.00 27.50 26.50 155.00 110.00 105.50 0.00 0.00 0.00 424.50
1998 0.00 0.00 0.00 0.00 0.00 6.50 213.50 335.00 120.00 0.00 0.00 0.00 675.00
1999 0.00 0.00 a 0.00 1.55 a 4.50 64.00 143.63 a 127.00 190.34 a 88.50 1.50 0.00 621.03
2000 0.00 0.00 a 0.00 0.00 a 35.13 a 174.00 124.00 222.00 107.00 18.00 0.00 0.00 680.13
2001 0.00 0.00 0.00 1.00 109.50 114.50 198.00 237.00 128.50 73.00 0.00 0.00 861.50
2002 0.00 0.00 0.00 0.00 16.00 61.50 259.00 214.00 189.00 31.50 0.50 0.00 771.50
2003 0.00 0.00 0.00 0.00 41.00 138.50 306.50 145.50 234.00 79.00 0.00 0.00 944.50
2004 0.00 0.00 4.50 15.00 a 18.50 43.00 204.50 192.00 146.00 36.50 0.00 a 0.50 660.50
2005 0.00 a 0.00 4.00 0.00 16.50 10.86 a 349.00 285.50 52.50 8.00 0.00 a 0.00 726.36
2006 0.00 0.52 a 0.00 0.50 36.00 163.00 355.00 161.72 a 153.50 9.50 0.00 0.00 879.74
2007 0.00 0.00 5.50 5.50 14.50 71.00 190.00 220.50 77.00 23.50 12.41 a 0.00 619.91
2008 0.00 0.00 0.00 3.50 50.00 138.50 242.32 a 259.50 198.00 62.00 11.50 0.00 965.32
2009 2.00 0.00 0.00 24.50 62.00 83.00 279.00 212.00 211.50 5.34 b 8.00 0.00 a 887.34
2010 0.00 0.00 0.00 0.00 b 0.00 48.00 235.50 201.50 a 156.00 57.00 16.00 0.00 714.00
2011 0.00 a 0.00 b 0.00 5.89 b 4.13 a 46.67 c 168.00 179.59 b 177.50 h 36.88 b 0.00 e 0.00 441.16
2012 0.00 a 0.00 0.00 9.50 18.50 74.00 177.22 a 346.17 a 218.50 60.50 11.38 a 0.00 a 915.76
2013 0.00 a 0.00 0.00 k 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 0.05 0.09 0.33 3.16 23.81 90.41 216.38 201.76 133.03 40.97 3.02 0.16 721.32
S.D. 0.27 0.43 1.14 7.02 24.06 52.02 72.57 73.79 53.28 40.47 6.47 0.69 157.23
SKEW 6.53 5.73 3.40 3.59 1.37 0.48 0.14 0.29 -0.17 1.52 2.71 4.43 0.42
MAX 2.00 3.00 5.50 42.50 109.50 223.97 394.50 417.31 241.50 203.00 31.00 4.00 1168.00
MIN 0.00 0.00 0.00 0.00 0.00 6.50 63.00 67.00 10.50 0.00 0.00 0.00 424.50
NO YRS 62 62 58 62 62 62 57 62 57 59 59 59 46