EL CAPITAN DAM, CALIFORNIA

Monthly Total Heating Degree Days

(042709)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 8.00 38.00 134.00 417.00 597.00
1949 623.00 401.50 336.00 115.50 80.50 2.00 0.00 0.00 0.00 71.00 51.00 297.00 1977.50
1950 434.00 262.89 a 236.00 77.00 91.00 12.50 0.00 0.00 0.00 2.00 69.00 121.50 1305.89
1951 326.50 275.50 178.00 g 133.50 80.00 6.00 0.00 2.00 1.00 25.00 142.00 354.50 1346.00
1952 442.50 280.00 371.50 190.50 19.50 13.00 0.00 0.00 0.00 8.50 201.50 304.50 1831.50
1953 202.50 235.00 234.00 188.50 110.50 30.50 0.00 0.00 1.50 22.50 87.69 d 239.50 1352.19
1954 330.50 118.50 273.50 106.00 38.23 a 14.50 0.00 0.00 1.50 17.50 56.00 253.00 1209.23
1955 408.50 290.00 174.50 125.50 99.50 16.50 0.00 a 0.00 2.50 26.50 157.00 277.00 1577.50
1956 277.00 402.00 196.50 186.50 52.00 3.21 b 0.00 a 0.00 0.00 49.00 90.50 193.00 1449.71
1957 351.00 187.50 210.28 a 134.00 80.00 1.00 0.00 0.00 0.00 54.50 227.00 208.50 1453.78
1958 280.00 194.50 322.00 129.50 32.50 1.50 0.00 a 0.00 0.50 3.50 113.00 135.00 1212.00
1959 175.50 271.50 77.00 31.50 40.50 0.00 0.00 0.00 0.00 17.50 63.00 191.17 a 867.67
1960 371.00 296.50 172.50 91.00 65.00 0.00 0.00 0.00 0.00 31.00 143.50 251.50 1422.00
1961 171.50 174.50 209.00 101.50 69.00 10.50 0.00 0.00 0.00 43.50 173.00 300.00 1252.50
1962 316.00 319.50 371.00 79.00 110.50 28.50 0.00 0.00 2.00 26.00 146.00 263.50 1662.00
1963 374.00 124.50 247.50 208.00 35.00 23.28 a 0.00 0.00 0.00 13.00 140.00 233.00 1398.28
1964 385.00 274.50 291.00 186.00 113.50 24.00 0.00 0.00 1.00 11.50 221.00 311.50 1819.00
1965 319.50 271.50 254.50 193.50 95.50 56.00 0.00 0.00 11.00 9.00 129.50 322.50 1662.50
1966 356.00 338.00 199.50 72.00 31.50 5.00 0.00 0.00 4.50 9.50 120.50 246.50 1383.00
1967 296.50 195.00 215.50 339.00 88.00 55.50 0.00 0.00 0.00 2.00 65.00 388.50 1645.00
1968 303.00 140.00 171.50 127.00 64.50 26.00 0.00 0.00 2.00 17.50 119.00 342.00 1312.50
1969 257.50 350.50 294.00 114.00 44.50 17.50 0.00 0.00 0.00 44.50 86.00 252.00 1460.50
1970 268.50 156.50 202.00 186.00 43.50 11.00 0.00 0.00 0.00 31.00 123.00 335.50 1357.00
1971 339.50 288.00 246.50 198.50 137.50 37.00 0.00 0.00 7.00 126.50 229.50 471.50 2081.50
1972 423.50 214.00 111.50 86.00 45.00 9.50 0.00 0.00 0.00 57.50 204.50 381.00 1532.50
1973 450.50 265.00 372.00 180.00 0.00 z 19.00 0.00 0.00 2.00 33.00 202.00 234.50 1758.00
1974 329.00 256.50 226.50 134.40 e 59.02 e 0.50 0.00 0.00 0.50 71.00 157.20 e 339.00 1573.62
1975 299.50 352.00 352.50 335.50 110.00 28.50 0.00 0.00 0.00 77.50 180.00 312.50 2048.00
1976 263.50 268.52 b 292.00 245.36 b 52.50 10.86 a 0.00 0.00 0.00 11.50 110.00 239.50 1493.74
1977 317.50 157.50 312.50 86.00 141.00 1.50 0.00 0.00 0.00 17.50 87.50 156.00 1277.00
1978 272.50 252.50 187.00 182.00 63.00 0.50 0.00 0.00 5.50 7.00 206.00 391.50 1567.50
1979 409.00 308.50 281.50 123.50 61.00 3.00 e 0.50 4.50 0.00 26.35 a 153.00 188.50 1559.35
1980 246.00 145.00 263.00 132.00 179.00 18.50 0.00 0.00 0.00 32.00 94.50 185.50 1295.50
1981 198.50 177.85 a 251.00 117.50 50.50 0.00 0.00 0.00 0.00 59.00 85.50 181.00 1120.85
1982 375.00 208.00 262.50 143.50 68.00 21.00 0.50 0.00 10.50 10.00 159.00 311.50 1569.50
1983 229.50 225.00 230.00 189.50 63.00 13.00 0.00 0.00 0.00 3.50 148.00 294.00 1395.50
1984 238.50 213.00 140.00 0.00 z 20.50 3.50 0.00 0.00 0.00 53.00 233.00 398.50 1300.00
1985 415.50 351.00 363.50 103.00 60.50 21.50 0.00 0.00 8.50 33.00 243.00 263.00 1862.50
1986 180.50 242.00 200.50 146.00 57.00 0.50 0.00 0.00 27.00 33.00 83.50 256.50 1226.50
1987 370.50 259.00 252.00 68.00 58.50 0.00 0.50 4.50 2.00 5.50 150.50 423.00 1594.00
1988 305.00 0.00 z 167.00 131.00 63.50 17.00 0.00 0.00 5.50 14.00 184.50 311.50 1199.00
1989 388.50 293.00 158.00 52.00 57.00 1.50 0.00 0.00 12.00 33.00 92.00 180.50 1267.50
1990 260.50 0.00 z 181.00 70.00 55.00 3.50 0.00 z 0.00 0.00 z 1.50 92.50 301.50 965.50
1991 260.00 108.50 334.50 144.50 60.50 5.00 0.00 0.00 0.00 z 37.50 88.50 268.50 1307.50
1992 261.00 154.00 208.50 34.50 1.50 0.00 0.00 0.00 z 0.00 7.00 100.00 330.50 1097.00
1993 312.50 261.00 135.00 39.00 0.00 z 13.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 761.00
1994 172.00 260.50 162.50 0.00 z 0.00 z 0.00 0.00 0.00 1.50 16.00 264.00 283.50 1160.00
1995 260.00 f 107.50 191.50 133.00 118.00 21.00 0.00 0.00 0.00 3.00 66.00 248.00 888.00
1996 232.00 230.00 179.00 49.50 15.00 k 0.52 a 0.00 i 0.00 i 0.00 h 62.50 j 0.00 z 162.00 k 691.02
1997 168.50 k 226.00 0.00 z 109.00 0.00 z 0.00 z 0.00 i 0.00 l 0.00 z 0.00 z 75.00 m 0.00 z 335.00
1998 332.50 359.00 295.00 237.50 137.50 0.00 z 0.00 i 0.00 z 0.00 z 21.00 i 91.00 j 213.00 k 1361.50
1999 165.50 j 239.50 g 171.50 j 238.80 e 79.00 j 10.00 g 0.00 i 0.00 h 0.00 h 0.00 h 0.00 z 101.50 j 238.80
2000 103.00 k 136.00 f 106.00 j 44.00 h 1.00 f 0.00 j 0.00 f 0.00 k 1.00 h 25.50 h 147.00 h 146.00 j 0.00
2001 240.00 i 227.00 f 128.50 j 127.00 j 5.50 l 0.00 h 0.00 g 0.00 h 0.00 i 6.31 d 139.00 359.50 504.81
2002 340.50 193.00 231.00 112.00 76.50 0.00 0.50 j 0.00 5.00 i 55.50 j 41.50 l 288.00 1241.00
2003 70.50 j 129.50 k 161.00 f 121.50 i 85.00 l 0.00 z 4.50 w 0.00 l 0.00 n 0.00 z 52.00 o 130.00 j 0.00
2004 122.50 m 180.00 i 43.50 k 32.00 j 1.50 i 0.00 j 0.00 j 0.00 h 0.00 j 43.50 i 168.00 h 160.00 m 0.00
2005 206.50 k 205.00 g 160.00 j 0.00 z 45.50 h 5.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2006 83.00 u 77.00 g 0.00 z 0.00 z 13.00 i 0.00 i 0.00 h 0.00 j 0.00 h 24.00 h 60.50 k 192.50 i 0.00
2007 276.50 k 201.50 i 182.00 h 123.00 h 26.50 j 26.00 h 0.00 z 0.00 i 25.00 h 53.50 m 157.50 i 358.50 h 0.00
2008 286.00 j 0.00 z 212.00 h 0.00 z 0.00 z 12.00 h 0.00 j 0.00 h 4.00 i 33.50 j 83.00 i 289.00 k 0.00
2009 275.50 i 265.00 h 248.00 h 183.50 i 57.50 h 49.00 h 0.00 i 1.50 h 0.00 j 71.00 h 188.50 i 332.50 j 0.00
2010 310.00 h 295.50 h 288.00 j 271.00 h 188.50 i 61.00 i 16.50 h 12.50 q 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2011 259.00 i 335.00 h 0.00 z 193.00 i 161.50 i 85.50 i 0.00 z 0.00 j 0.00 f 14.00 h 146.50 k 379.75 c 379.75
2012 189.00 k 331.50 328.27 c 197.00 76.00 3.10 a 0.00 a 0.00 0.00 42.37 a 106.00 k 427.00 1405.24
2013 425.50 381.00 238.50 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 1045.00
Period of Record Statistics
MEAN 318.36 248.01 239.48 139.87 71.41 12.23 0.03 0.23 2.55 28.40 137.74 287.13 1488.55
S.D. 87.53 76.55 70.97 67.50 35.40 13.44 0.12 0.95 4.95 24.68 55.83 79.80 261.82
SKEW 0.66 0.04 0.15 0.86 0.80 1.47 3.57 4.10 3.09 1.58 0.43 0.10 0.37
MAX 623.00 402.00 372.00 339.00 179.00 56.00 0.50 4.50 27.00 126.50 264.00 471.50 2081.50
MIN 171.50 107.50 77.00 31.50 1.50 0.00 0.00 0.00 0.00 1.50 51.00 121.50 867.67
NO YRS 50 51 51 51 47 50 47 48 46 49 48 51 37