EL CAJON, CALIFORNIA

Monthly Total Heating Degree Days

(042706)

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
1979 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 189.64 b 250.00 439.64
1980 216.50 138.00 208.73 a 87.86 b 104.00 5.00 0.00 0.00 b 0.00 25.00 150.00 193.48 b 1128.57
1981 214.00 147.00 192.20 a 59.50 13.50 0.00 z 0.00 a 0.00 0.00 44.00 134.50 248.00 1052.70
1982 339.50 177.50 214.50 108.00 24.00 12.00 0.00 0.00 3.50 20.00 221.50 0.00 z 1120.50
1983 258.50 215.00 187.00 163.00 45.50 4.50 0.00 0.00 0.50 0.50 201.00 306.00 1381.50
1984 276.00 231.00 120.50 112.50 10.00 0.50 0.00 0.00 0.00 39.50 221.50 383.00 1394.50
1985 379.50 291.50 272.00 52.50 37.50 8.00 0.00 0.00 0.50 15.00 222.50 284.50 1563.50
1986 165.50 0.00 z 141.00 93.00 30.00 0.00 0.00 0.00 22.00 20.50 125.50 317.00 914.50
1987 381.50 271.00 210.50 55.00 43.00 0.00 0.00 0.00 0.00 6.00 0.00 z 435.50 1402.50
1988 340.00 186.00 172.50 110.50 54.50 16.50 0.00 0.00 6.50 4.00 173.00 343.00 1406.50
1989 372.00 a 277.50 144.00 40.00 37.50 2.00 0.00 0.00 3.50 32.00 112.76 a 292.50 1313.76
1990 329.00 341.00 191.50 55.50 33.50 2.50 0.00 0.00 0.00 1.50 137.50 383.00 1475.00
1991 298.50 133.00 300.00 109.50 70.50 4.00 0.00 0.00 0.00 z 34.62 a 141.00 306.50 1397.62
1992 303.00 159.50 197.00 0.00 z 0.00 0.00 z 0.00 0.00 0.00 0.00 z 168.50 403.00 1231.00
1993 268.50 229.00 102.00 33.00 4.00 7.00 0.00 0.00 0.50 7.00 149.50 306.50 1107.00
1994 265.50 288.00 0.00 z 83.50 57.50 0.00 z 0.00 0.00 0.00 z 25.50 303.00 351.00 1374.00
1995 314.50 128.50 201.00 142.00 116.50 14.50 0.00 0.00 0.00 3.50 30.50 244.00 1195.00
1996 0.00 z 183.00 145.50 40.00 6.50 0.00 0.00 0.00 i 0.00 m 79.00 131.50 256.00 841.50
1997 261.50 252.00 102.50 93.50 0.00 0.00 0.00 0.00 j 0.00 z 11.00 80.50 i 0.00 z 720.50
1998 275.00 273.00 189.00 0.00 z 51.00 8.50 0.00 z 0.00 z 0.00 z 0.00 z 147.50 0.00 z 944.00
1999 267.24 b 249.50 266.82 c 207.69 d 43.50 15.00 a 0.00 0.00 a 1.55 a 0.00 e 124.62 d 277.28 d 1453.20
2000 214.42 a 185.28 b 173.60 a 35.56 c 6.50 0.00 0.00 c 0.00 b 0.00 41.33 a 236.25 b 215.89 c 1108.83
2001 388.65 d 302.30 a 169.43 b 161.11 c 5.00 0.00 a 0.00 0.00 c 0.00 0.00 g 129.50 286.50 h 1155.99
2002 322.50 209.00 219.00 100.50 42.00 3.89 c 0.00 0.00 j 1.00 47.00 67.50 0.00 z 1012.39
2003 119.00 133.50 i 142.50 147.00 55.50 12.00 e 0.00 0.00 0.00 0.00 g 164.50 303.44 e 943.94
2004 265.88 e 287.00 63.00 f 17.50 l 3.50 n 0.00 e 0.00 0.00 0.00 l 48.50 h 166.00 f 264.00 816.88
2005 265.50 234.50 145.50 78.00 24.50 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 204.50 952.50
2006 269.50 0.00 z 0.00 z 109.00 10.00 0.00 0.00 0.00 0.00 0.00 z 67.50 0.00 z 456.00
2007 350.50 205.00 0.00 z 81.00 0.00 z 2.00 0.00 z 0.00 z 0.00 z 0.00 z 84.50 332.50 1055.50
2008 326.03 b 249.85 c 0.00 z 68.50 48.00 0.00 a 2.21 c 0.00 a 0.00 b 8.35 e 34.00 292.50 1029.44
2009 167.50 269.00 163.78 a 117.60 e 7.23 a 3.00 0.00 z 0.00 0.00 33.00 126.00 309.00 1196.12
2010 249.00 238.00 191.00 125.00 48.50 2.50 0.00 0.00 1.00 35.00 216.00 282.50 1388.50
2011 256.50 329.50 219.00 96.92 d 55.00 10.50 0.00 0.00 0.00 41.33 a 188.57 b 380.00 1577.33
2012 247.50 248.00 231.50 112.50 23.50 2.00 0.00 0.00 0.00 14.50 112.50 300.00 1292.00
2013 369.00 301.00 118.00 4.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 18.00 z 788.00
Period of Record Statistics
MEAN 282.95 233.21 183.85 95.97 35.75 4.53 0.07 0.00 1.62 23.57 150.41 302.31 1341.80
S.D. 65.53 58.24 48.71 41.72 28.33 5.20 0.40 0.00 4.52 19.21 61.29 59.41 158.16
SKEW -0.37 -0.18 0.35 0.55 0.97 0.98 5.20 0.00 3.93 0.86 0.14 0.28 -0.21
MAX 388.65 341.00 300.00 207.69 116.50 16.50 2.21 0.00 22.00 79.00 303.00 435.50 1577.33
MIN 119.00 128.50 102.00 33.00 0.00 0.00 0.00 0.00 0.00 0.00 30.50 193.48 1107.00
NO YRS 33 31 29 30 31 30 30 27 25 25 30 28 14