SAN GABRIEL FIRE DEP, CALIFORNIA

Monthly Total Heating Degree Days

(047785)

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
1939 0.00 z 0.00 z 0.00 z 0.00 z 96.50 10.00 0.00 0.00 1.00 45.00 85.50 196.50 434.50
1940 287.50 270.50 198.50 135.00 29.00 2.50 1.50 0.00 0.00 41.50 184.50 226.50 1377.00
1941 0.00 z 0.00 z 180.50 0.00 z 17.50 5.50 0.00 0.00 1.50 75.00 154.00 358.50 792.50
1942 304.00 355.00 262.50 161.50 61.00 4.00 0.00 1.50 5.50 36.50 154.50 302.00 1648.00
1943 0.00 z 0.00 z 0.00 z 104.50 29.50 26.50 0.00 0.00 0.00 57.87 a 128.00 314.50 660.87
1944 358.50 388.50 244.50 191.00 50.50 23.79 a 0.00 a 0.00 a 1.50 9.00 237.00 281.00 1785.29
1945 366.50 293.50 365.00 164.00 76.50 21.00 0.00 0.00 6.00 24.50 207.50 326.50 1851.00
1946 334.00 359.00 262.50 118.00 107.50 0.00 0.00 0.00 0.00 103.50 270.50 359.00 1914.00
1947 411.50 192.00 170.00 123.00 42.00 4.00 0.00 0.00 e 0.00 11.50 268.50 334.50 1557.00
1948 305.00 358.00 349.00 159.50 92.00 16.55 a 0.00 b 0.00 9.00 44.50 174.50 415.92 a 1923.97
1949 597.50 392.00 321.50 98.50 72.50 1.00 0.00 0.00 0.00 78.50 64.00 338.00 1963.50
1950 501.00 240.00 228.37 a 107.00 112.50 12.50 0.00 0.00 0.00 5.00 124.00 143.50 1473.87
1951 332.00 282.50 209.00 141.00 64.00 12.00 0.00 0.00 0.00 34.00 178.50 395.50 1648.50
1952 467.50 285.00 406.00 172.00 23.50 42.50 0.00 0.00 7.00 19.50 262.00 359.50 2044.50
1953 225.78 a 278.50 259.50 218.50 118.00 35.00 0.00 0.00 2.00 44.43 a 124.00 283.50 1589.22
1954 359.00 140.50 308.97 a 141.50 47.00 16.00 0.00 a 0.00 0.00 56.50 109.50 319.00 1497.97
1955 446.00 325.50 198.50 178.50 108.00 23.79 a 0.00 0.00 5.00 58.50 183.00 328.50 1855.29
1956 319.00 412.50 188.50 202.00 86.00 0.00 0.00 0.00 0.00 62.50 83.28 a 233.50 1587.28
1957 389.10 b 184.00 170.00 138.50 74.00 0.50 0.00 0.00 0.00 34.10 a 229.14 a 188.00 1407.34
1958 267.50 198.50 314.00 120.00 24.00 0.00 0.00 0.00 0.00 5.00 120.50 171.50 1221.00
1959 204.50 303.33 a 77.50 33.00 42.50 0.00 a 0.00 0.00 0.00 8.00 42.00 221.00 931.83
1960 397.50 281.00 133.00 80.50 39.00 0.00 0.00 0.00 0.00 38.00 181.50 254.50 1405.00
1961 159.50 155.50 210.00 109.00 73.00 13.50 0.00 0.00 2.00 61.00 211.00 320.00 1314.50
1962 342.15 d 345.52 c 343.00 62.00 110.50 36.00 0.00 0.00 0.00 27.50 149.00 275.00 1690.67
1963 351.50 107.00 254.50 190.50 53.00 23.50 0.00 0.00 0.00 5.50 149.50 251.50 1386.50
1964 355.00 276.00 268.00 183.00 111.50 20.00 0.00 0.00 0.00 8.00 231.00 311.50 1764.00
1965 264.07 d 263.00 234.00 199.00 91.50 39.50 0.00 0.00 8.50 7.50 164.50 349.00 1620.57
1966 379.00 317.50 158.50 66.50 36.00 4.50 0.00 0.00 0.00 6.00 167.50 280.00 1415.50
1967 297.00 174.50 196.50 325.00 74.50 49.00 0.00 b 0.00 0.00 0.00 72.00 371.00 1559.50
1968 318.00 124.00 149.50 100.00 68.00 13.00 0.00 0.00 1.00 17.50 133.50 378.00 1302.50
1969 288.50 358.00 250.00 117.50 34.50 15.52 a 0.00 0.00 0.00 51.50 109.00 266.50 1491.02
1970 303.00 166.00 186.00 165.50 51.15 a 6.50 0.00 0.00 a 0.00 40.00 153.50 353.50 1425.15
1971 323.00 260.00 216.00 176.50 110.50 36.00 0.00 a 0.00 a 8.00 114.00 220.00 458.50 1922.50
1972 371.50 209.00 93.50 97.50 61.00 0.00 0.00 a 0.00 0.00 49.50 205.00 341.50 1428.50
1973 0.00 z 233.00 314.00 120.50 26.50 8.00 0.00 0.00 a 0.00 15.00 217.50 270.50 1205.00
1974 362.91 b 227.00 213.50 94.50 55.50 3.00 0.00 0.00 0.00 a 42.50 131.50 349.00 1479.41
1975 301.22 a 292.92 b 270.50 263.28 a 72.50 16.55 a 0.00 0.00 0.50 65.50 170.00 275.00 1727.97
1976 222.50 243.50 222.50 185.00 26.00 10.00 0.00 c 0.00 a 0.00 9.50 92.14 b 240.00 1251.14
1977 305.00 126.50 295.00 88.00 131.00 2.50 0.00 0.00 0.00 17.50 83.50 184.50 1233.50
1978 289.00 229.50 119.00 143.50 27.50 0.00 0.00 0.00 0.00 3.00 217.00 390.50 1419.00
1979 391.00 283.50 210.00 69.00 30.00 1.50 0.00 0.00 a 0.00 15.00 i 151.00 200.50 1336.50
1980 209.00 123.77 a 191.17 a 107.50 108.00 14.50 0.00 0.00 b 0.00 a 20.00 124.50 163.00 1061.43
1981 209.52 b 149.50 203.80 d 77.50 21.00 0.00 0.00 0.00 0.00 29.50 121.55 a 198.92 a 1011.28
1982 346.50 163.50 232.00 116.50 40.00 19.00 0.00 0.00 2.00 8.50 169.50 339.00 1436.50
1983 230.00 179.50 191.50 169.50 42.00 5.50 0.00 0.00 1.00 0.00 146.00 250.50 1215.50
1984 211.00 171.00 83.50 84.50 8.50 0.00 0.00 0.00 0.00 17.50 187.00 337.50 1100.50
1985 335.00 225.50 241.50 49.50 32.00 7.50 0.00 0.00 0.00 2.50 198.50 191.50 1283.50
1986 96.00 189.00 132.50 68.50 23.50 0.00 0.00 0.00 18.50 10.00 58.50 253.00 849.50
1987 326.00 199.50 181.50 31.00 25.50 0.00 0.00 0.00 0.00 1.50 136.00 385.50 1286.50
1988 261.50 124.00 104.50 84.00 34.00 8.00 0.00 0.00 1.50 1.00 147.00 307.50 1073.00
1989 336.00 274.00 107.00 39.00 26.00 4.50 0.00 0.00 0.00 19.00 69.50 197.00 1072.00
1990 251.00 258.00 162.50 38.65 d 29.00 2.00 0.00 0.00 0.00 1.50 110.00 335.00 1187.65
1991 258.00 86.50 285.50 75.00 54.50 0.00 0.00 0.00 0.00 n 40.00 86.50 234.50 1120.50
1992 239.45 b 149.00 162.00 13.50 0.00 0.00 0.00 0.00 0.00 2.00 109.00 363.50 1038.45
1993 311.00 233.00 80.50 24.00 0.00 6.50 0.00 0.00 0.00 2.50 118.50 263.00 1039.00
1994 203.50 248.00 93.50 72.50 51.00 0.00 0.00 0.00 0.00 12.00 279.31 a 283.50 1243.31
1995 292.43 a 99.00 152.00 96.50 79.00 18.50 0.00 0.00 0.00 2.50 37.00 240.50 1017.43
1996 234.00 171.00 133.00 46.50 11.00 0.00 0.00 0.00 0.00 a 62.00 a 107.50 215.00 980.00
1997 246.50 170.00 64.50 74.00 0.00 0.00 0.00 0.00 0.00 7.00 114.50 280.00 956.50
1998 261.50 282.50 161.50 173.00 69.50 11.50 0.00 0.00 k 3.00 17.50 153.00 276.23 c 1409.23
1999 238.00 200.85 b 242.50 196.15 d 44.00 17.31 d 0.00 a 0.00 e 0.00 0.00 d 85.50 g 208.98 b 1147.79
2000 208.00 229.31 b 159.50 43.33 c 12.40 a 0.00 a 0.00 b 0.00 d 0.00 a 26.02 c 214.44 c 194.30 c 1087.31
2001 336.57 c 322.00 0.00 z 145.96 d 1.03 a 0.00 0.00 c 0.00 0.00 6.00 118.85 d 253.50 f 930.41
2002 314.02 d 167.50 0.00 z 108.00 38.50 k 0.00 0.00 0.00 0.00 0.00 z 60.50 326.50 976.52
2003 120.00 235.00 104.50 110.00 29.00 1.50 0.00 g 0.00 0.00 0.00 48.00 129.00 h 648.00
2004 130.50 235.48 d 23.00 n 75.00 0.50 k 0.00 z 0.00 g 0.00 k 0.00 e 67.00 207.50 0.00 z 715.48
2005 259.76 b 198.00 156.00 86.00 25.50 1.00 t 0.00 f 0.00 0.00 22.50 f 77.50 205.50 1008.26
2006 243.00 183.50 0.00 z 0.00 z 16.50 0.00 r 0.00 0.00 0.00 54.50 95.00 246.50 839.00
2007 271.50 i 219.00 118.32 a 0.00 z 0.00 z 3.50 0.00 0.00 z 5.50 26.00 111.00 329.50 812.82
2008 335.50 249.00 143.00 117.50 78.00 1.50 0.00 0.00 0.00 11.50 49.50 316.50 1302.00
2009 165.50 239.00 183.00 137.50 3.50 7.00 0.00 0.00 0.00 z 35.50 97.50 306.50 1175.00
2010 227.00 215.50 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 0.00 z 442.50
2011 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
2012 0.00 z 0.00 z 222.00 93.00 g 27.50 0.00 0.00 0.00 0.00 6.56 e 95.00 196.50 h 351.06
2013 295.00 263.31 b 107.39 c 5.50 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 665.70
Period of Record Statistics
MEAN 297.47 234.08 200.77 119.46 51.44 9.91 0.02 0.02 1.29 27.88 144.26 286.26 1406.45
S.D. 86.82 75.38 76.38 59.17 34.00 11.99 0.18 0.18 3.06 26.18 59.88 68.84 303.12
SKEW 0.46 0.26 0.41 0.71 0.51 1.41 8.12 8.12 3.38 1.08 0.31 0.02 0.23
MAX 597.50 412.50 406.00 325.00 131.00 49.00 1.50 1.50 18.50 114.00 279.31 458.50 2044.50
MIN 96.00 86.50 64.50 13.50 0.00 0.00 0.00 0.00 0.00 0.00 37.00 143.50 849.50
NO YRS 68 70 67 67 69 69 69 69 70 69 71 68 55