ALPINE, CALIFORNIA

Monthly Total Heating Degree Days

(040136)

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
1952 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 26.50 0.00 z 440.00 466.50
1953 277.50 365.00 344.00 297.00 197.50 65.00 0.00 7.50 10.00 94.00 194.50 410.00 2262.00
1954 505.00 216.50 418.00 214.50 90.42 a 39.00 0.00 1.00 5.50 71.00 126.50 398.50 2085.92
1955 568.52 c 403.00 288.50 247.00 163.00 28.00 2.50 0.00 16.50 89.00 289.04 d 393.59 c 2488.65
1956 398.00 513.00 302.00 282.00 98.00 11.00 2.00 1.50 0.00 135.50 169.50 336.50 2249.00
1957 493.00 265.00 310.00 232.00 168.00 5.00 0.00 0.00 0.00 124.50 332.00 304.00 2233.50
1958 395.00 287.50 415.00 189.83 a 45.50 15.50 2.00 0.00 1.00 31.00 a 209.50 167.40 a 1759.23
1959 235.50 367.00 115.50 77.50 100.50 1.50 0.00 0.00 2.00 48.50 63.00 276.50 1287.50
1960 467.00 385.50 195.50 137.50 90.50 1.00 0.00 0.00 1.50 76.00 237.50 361.00 1953.00
1961 228.50 234.50 320.00 160.00 151.50 32.00 0.00 0.00 28.50 145.50 290.00 435.50 2026.00
1962 433.00 466.50 508.50 155.00 222.50 84.00 5.00 0.00 15.00 107.50 262.00 380.00 2639.00
1963 538.00 226.50 408.00 348.00 162.00 100.50 7.00 0.00 0.00 35.50 246.50 289.00 2361.00
1964 451.50 355.00 376.50 269.50 162.50 43.50 0.00 0.00 2.00 26.50 296.50 406.50 2390.00
1965 350.00 312.00 344.50 249.00 157.00 81.00 1.00 0.00 27.50 32.50 226.50 406.00 2187.00
1966 436.50 397.70 a 240.50 131.50 61.50 15.00 0.00 1.00 0.00 22.00 177.00 327.00 1809.70
1967 313.00 204.00 273.50 408.50 118.50 87.50 0.00 0.00 0.00 3.00 105.50 448.50 1962.00
1968 363.00 174.50 218.00 169.50 100.50 34.50 0.00 0.00 8.50 33.50 162.50 394.00 1658.50
1969 312.00 412.50 339.50 164.50 75.50 48.00 0.00 z 0.00 0.00 90.00 132.50 352.50 1927.00
1970 352.00 231.00 261.00 258.50 79.00 22.50 b 0.00 0.00 3.00 31.52 a 239.50 458.50 1936.52
1971 383.00 314.00 228.50 223.00 200.35 d 63.00 0.00 0.00 z 15.50 173.50 245.00 556.00 2401.85
1972 394.50 227.50 141.57 a 142.00 76.50 17.50 0.00 b 0.00 7.76 a 110.50 0.00 z 416.50 1534.33
1973 493.00 333.50 462.50 232.50 62.00 25.00 0.00 z 0.00 f 3.62 a 39.27 a 307.76 a 337.00 2296.15
1974 425.00 259.58 d 255.50 122.07 a 103.33 a 3.50 0.00 c 0.00 c 6.11 c 113.15 a 200.36 b 442.61 d 1931.21
1975 266.94 d 262.23 b 346.17 d 342.12 d 95.14 b 24.83 a 0.00 a 0.00 b 0.50 g 86.50 f 184.82 b 326.50 1848.74
1976 214.79 c 281.71 a 309.48 a 249.81 d 69.48 b 15.56 c 0.00 a 0.00 9.83 a 31.00 113.57 b 274.35 a 1569.58
1977 376.00 174.22 a 395.50 141.72 a 208.00 0.50 1.50 0.00 0.00 b 28.50 121.55 a 183.50 1631.00
1978 324.00 246.62 b 206.50 226.07 b 78.03 b 4.66 a 0.00 0.00 11.00 20.15 a 261.67 c 476.00 1854.69
1979 471.00 353.11 a 314.13 a 144.00 64.14 b 2.22 c 0.00 a 0.00 0.00 c 47.57 b 220.18 b 243.35 a 1859.70
1980 315.88 b 208.18 a 302.00 161.50 180.50 18.50 0.00 0.00 0.00 a 49.27 c 156.21 a 192.41 b 1584.45
1981 227.16 b 188.46 b 282.50 133.00 55.50 0.00 0.00 0.00 a 0.00 94.00 136.50 234.50 1351.62
1982 418.50 0.00 z 309.00 165.00 100.50 43.50 0.00 0.00 22.00 24.50 254.00 392.00 1729.00
1983 288.00 286.00 310.00 276.50 91.50 17.00 0.00 0.00 2.00 9.50 237.00 318.00 1835.50
1984 266.50 243.50 0.00 z 180.50 22.50 13.00 0.00 0.00 0.00 77.00 278.00 439.00 1520.00
1985 416.50 320.00 345.00 102.00 101.50 19.50 0.00 0.00 22.50 58.50 290.00 259.50 1935.00
1986 160.50 272.00 225.50 179.00 86.00 1.50 0.00 0.00 68.00 59.50 113.00 318.00 1483.00
1987 393.00 325.50 329.00 86.00 102.50 4.50 7.50 3.50 2.50 18.50 213.00 461.50 1947.00
1988 329.00 174.00 204.00 181.00 98.50 47.50 0.00 0.00 14.00 35.00 214.00 368.00 1665.00
1989 396.00 338.00 196.50 95.00 110.00 32.50 0.00 0.00 14.50 42.50 99.83 a 210.50 1535.33
1990 327.00 371.50 278.50 151.00 120.26 b 22.00 0.00 0.00 2.50 0.00 z 151.00 386.00 1809.76
1991 344.50 138.00 420.00 202.00 158.00 54.00 0.50 1.00 0.00 z 76.50 145.00 328.50 1868.00
1992 289.50 236.00 0.00 z 88.00 14.50 0.00 z 1.50 0.00 0.00 29.50 0.00 z 417.00 1076.00
1993 372.00 350.50 184.50 100.00 29.50 0.00 z 0.00 0.00 9.50 33.50 174.50 310.50 1564.50
1994 224.00 339.50 209.00 201.00 157.50 1.50 0.00 0.00 z 4.00 0.00 z 328.00 347.00 1811.50
1995 388.50 163.50 253.50 210.50 195.50 46.50 0.00 0.00 1.50 12.50 51.50 269.50 1593.00
1996 288.00 264.00 241.00 97.00 42.50 6.72 a 0.00 0.00 0.00 0.00 z 179.00 265.00 1383.22
1997 339.50 305.00 0.00 z 0.00 z 7.50 10.00 0.00 0.00 0.00 46.00 160.50 371.00 1239.50
1998 0.00 z 369.00 284.50 0.00 z 0.00 z 52.00 0.00 z 0.00 0.00 z 0.00 z 0.00 z 0.00 z 705.50
1999 284.00 300.50 342.50 316.50 114.00 48.00 0.00 a 0.00 6.00 e 3.21 b 0.00 z 241.28 a 1655.99
2000 241.91 c 284.82 a 273.00 103.45 a 30.50 h 4.50 0.00 c 0.00 d 3.46 d 97.65 a 265.18 b 124.50 j 1273.97
2001 410.20 c 400.96 c 250.58 a 248.79 a 24.50 i 6.00 0.00 c 0.00 f 0.00 d 23.00 162.00 e 288.00 h 1501.53
2002 353.00 218.00 301.00 231.50 126.00 11.00 0.00 0.00 8.00 i 129.50 106.00 384.00 1860.00
2003 96.50 272.00 214.00 266.00 110.50 41.00 0.00 g 0.00 0.00 16.69 e 226.50 148.00 t 1243.19
2004 322.00 414.00 145.50 132.00 42.50 6.00 n 2.50 0.00 e 4.50 f 87.00 m 192.50 l 100.00 v 1058.50
2005 185.50 m 162.50 n 125.00 n 0.00 z 44.50 o 6.00 u 0.00 y 0.00 z 0.00 z 0.00 z 0.00 z 177.00 i 0.00
2006 209.00 j 0.00 z 0.00 z 0.00 z 17.50 r 0.00 u 0.00 o 0.00 s 2.50 q 13.00 x 29.50 x 52.00 y 0.00
2007 89.50 z 199.50 i 9.50 z 24.50 z 50.50 l 9.50 u 0.00 r 0.00 t 9.50 j 25.00 t 53.50 v 365.50 h 0.00
2008 274.00 m 73.00 x 39.50 z 9.50 y 126.50 g 10.50 n 0.00 r 0.00 h 0.00 r 0.00 z 10.00 z 260.50 n 0.00
2009 234.50 332.00 282.00 214.00 29.00 47.50 0.00 0.00 0.00 81.00 122.00 399.50 1741.50
2010 289.00 359.50 308.50 292.00 159.00 45.50 15.50 2.50 4.50 142.60 a 265.50 354.50 2238.60
2011 346.00 407.00 296.00 185.50 183.00 48.00 0.00 0.00 0.00 52.00 253.50 462.50 2233.50
2012 281.00 365.00 338.00 184.00 92.00 19.00 0.00 0.00 0.00 47.00 181.50 438.50 1946.00
2013 436.50 374.50 192.50 7.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 21.50 z 1003.50
Period of Record Statistics
MEAN 349.00 301.61 289.93 196.25 108.13 28.91 0.93 0.35 6.90 59.73 199.57 354.02 1920.69
S.D. 94.69 81.86 80.79 74.38 53.83 25.16 2.63 1.20 11.53 42.03 69.64 84.43 325.40
SKEW -0.05 0.13 0.28 0.54 0.23 0.93 3.99 4.64 3.29 0.83 -0.07 -0.26 0.15
MAX 568.52 513.00 508.50 408.50 222.50 100.50 15.50 7.50 68.00 173.50 332.00 556.00 2639.00
MIN 96.50 138.00 115.50 77.50 7.50 0.00 0.00 0.00 0.00 3.00 51.50 167.40 1287.50
NO YRS 56 56 54 54 53 53 52 52 51 51 51 52 35