FAIRFIELD, CALIFORNIA

Monthly Total Heating Degree Days

(042934)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1950 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 428.26 d 428.26
1951 582.50 382.00 304.50 247.00 95.07 a 31.50 11.50 3.50 9.11 b 66.43 c 314.50 559.00 2606.60
1952 643.50 424.64 a 411.50 190.34 a 79.50 61.50 0.60 e 6.50 0.00 h 30.00 p 419.42 d 273.00 p 2237.51
1953 440.00 310.50 334.91 c 237.41 a 131.50 g 46.73 d 0.00 6.00 2.50 f 26.50 o 243.50 f 435.50 1811.06
1954 515.78 b 417.00 381.96 c 139.00 60.00 39.00 j 0.50 r 8.00 j 15.00 70.50 j 300.50 i 418.00 j 1528.74
1955 663.00 336.00 g 363.50 358.00 100.50 45.58 d 8.86 c 1.50 22.50 m 63.55 a 342.00 465.50 2411.98
1956 501.17 a 519.50 331.00 g 242.50 83.00 f 18.00 0.00 g 0.50 1.50 157.87 d 313.00 480.50 g 1754.04
1957 640.84 b 337.50 227.50 h 180.50 71.00 h 0.00 1.00 g 0.57 d 0.00 v 70.00 q 381.00 567.00 2107.42
1958 555.02 e 302.00 458.00 214.00 38.50 4.82 b 2.50 h 0.00 a 3.00 70.50 283.50 430.00 2359.34
1959 464.00 414.50 247.00 98.00 93.50 22.00 0.00 7.50 7.50 42.00 303.50 531.00 2230.50
1960 555.50 378.00 270.50 204.00 75.00 4.00 3.50 1.00 12.00 70.50 350.00 560.50 2484.50
1961 664.00 325.50 322.00 164.50 139.50 9.00 6.50 0.00 5.00 58.50 j 358.50 593.50 2588.00
1962 636.50 441.00 407.00 111.00 117.50 23.50 0.00 14.50 12.00 85.00 277.00 575.00 2700.00
1963 664.50 229.00 377.00 329.00 120.00 12.50 4.50 1.00 0.00 73.00 379.50 719.50 2909.50
1964 596.00 213.50 o 345.00 206.00 145.00 36.50 4.00 1.50 19.00 52.50 404.50 437.50 2247.50
1965 562.50 383.50 339.00 239.50 81.00 65.00 0.00 0.00 23.50 18.00 280.00 706.00 2698.00
1966 540.50 456.50 325.50 100.00 64.00 31.50 30.50 3.00 3.00 51.00 303.00 553.00 2461.50
1967 536.00 425.50 397.50 454.00 105.00 55.50 0.53 b 0.00 a 0.00 17.00 214.50 574.00 2779.53
1968 624.00 278.61 a 276.50 162.00 130.31 d 16.50 1.00 6.50 11.50 101.50 346.50 629.50 2584.42
1969 639.50 500.50 375.00 222.50 75.00 17.00 0.00 0.00 8.50 127.62 a 314.00 470.50 2750.12
1970 458.50 344.00 250.00 266.50 101.50 27.50 0.00 a 2.50 6.00 164.00 273.00 587.00 2480.50
1971 573.50 439.50 350.82 a 272.50 153.00 30.50 0.00 0.00 37.76 a 196.00 387.50 669.00 3110.08
1972 739.50 408.00 235.00 246.00 100.50 21.50 9.50 0.00 10.00 128.50 414.50 705.50 3018.50
1973 601.50 361.00 396.50 153.00 74.50 17.00 4.00 4.00 11.50 102.62 b 369.50 539.00 2634.12
1974 569.50 479.50 363.00 270.00 134.00 23.00 13.50 2.50 7.50 75.50 370.00 610.50 2918.50
1975 669.00 442.50 407.50 373.00 116.00 35.00 19.00 15.50 5.00 180.00 425.40 e 552.50 3240.40
1976 582.50 428.00 376.00 288.50 82.00 63.46 d 3.50 z 16.50 0.00 z 93.00 313.00 613.50 2856.46
1977 680.50 373.00 402.00 149.50 213.50 40.00 5.00 0.00 39.00 83.50 301.00 446.00 2733.00
1978 441.50 385.00 216.00 272.07 a 60.50 19.00 8.00 1.00 15.00 77.00 417.50 701.00 2613.57
1979 609.00 455.50 340.00 238.45 a 76.35 d 7.50 0.50 3.00 2.50 82.50 362.00 526.00 2703.30
1980 538.37 a 338.50 335.50 193.45 a 86.00 20.50 2.50 4.00 12.00 134.50 359.00 613.00 2637.31
1981 573.00 374.00 358.50 138.00 41.00 0.50 0.00 k 4.00 3.00 107.00 222.50 472.50 2294.00
1982 693.50 356.00 372.50 230.50 34.00 25.50 2.50 0.00 4.50 75.50 464.50 557.50 2816.50
1983 659.50 364.00 330.00 239.00 79.50 0.00 0.50 0.00 s 0.00 18.00 349.50 496.00 2536.00
1984 595.50 424.00 188.50 187.50 42.00 7.50 0.00 1.00 0.00 158.50 438.00 671.00 2713.50
1985 782.50 400.00 445.00 124.00 77.00 12.50 1.50 5.50 31.00 162.00 526.50 799.50 3367.00
1986 533.00 362.50 282.50 229.50 85.50 4.82 b 0.00 0.00 79.00 53.00 194.00 559.50 2383.32
1987 593.00 354.50 324.50 102.50 88.50 10.00 12.50 3.50 3.50 38.50 334.50 553.00 2418.50
1988 522.00 320.50 214.50 190.00 130.41 b 46.50 0.00 11.50 12.50 80.00 342.50 556.50 2426.91
1989 594.50 500.50 314.50 135.00 87.00 26.50 0.50 3.00 14.00 97.00 280.50 622.00 2675.00
1990 544.00 465.50 270.00 118.00 105.50 15.00 0.00 0.00 0.00 20.50 288.00 688.00 2514.50
1991 537.50 274.50 441.50 210.00 131.00 36.50 0.00 4.50 2.50 75.00 236.00 541.00 2490.00
1992 643.50 311.50 253.50 94.50 11.50 14.50 0.00 0.00 4.00 17.00 268.00 621.00 2239.00
1993 611.00 422.50 199.00 178.50 55.00 21.50 0.00 0.50 6.96 b 30.00 328.00 605.50 2458.46
1994 542.50 447.50 236.50 159.50 82.00 8.65 d 0.00 d 0.00 0.00 66.00 489.50 625.50 2657.65
1995 437.50 327.50 339.50 198.50 110.50 31.50 0.00 0.00 0.00 26.50 149.50 419.00 2040.00
1996 499.00 313.50 263.50 156.00 71.30 a 4.00 0.00 1.00 1.50 116.50 254.50 426.50 2107.30
1997 496.50 316.00 200.50 111.50 10.00 0.50 0.00 0.00 0.00 76.00 261.50 562.00 2034.50
1998 505.50 418.50 301.50 255.00 210.50 22.00 0.00 0.00 20.50 90.00 323.50 630.00 2777.00
1999 610.50 446.00 399.50 227.50 100.50 28.50 0.00 0.00 0.00 54.50 250.50 490.00 2607.50
2000 475.50 404.00 293.50 136.50 87.50 11.00 3.00 6.00 7.76 a 120.90 a 460.86 a 521.50 2528.02
2001 576.08 a 422.00 211.83 a 253.00 7.48 b 0.50 0.00 0.00 2.50 34.10 a 260.50 512.50 2280.50
2002 568.00 363.00 348.50 191.50 92.50 5.50 0.00 0.00 13.00 114.00 293.00 493.00 2482.00
2003 436.00 378.00 246.00 309.50 99.50 9.00 0.00 0.00 0.00 24.00 394.50 479.50 2376.00
2004 561.00 384.50 114.50 137.50 25.00 1.50 0.00 0.50 13.50 142.00 367.50 559.50 2307.00
2005 622.50 342.50 272.00 255.00 106.00 31.50 0.00 1.00 31.00 81.00 225.00 444.50 2412.00
2006 445.50 363.50 471.50 253.00 66.50 11.00 0.00 q 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1611.00
Period of Record Statistics
MEAN 574.05 385.87 320.41 207.91 89.71 21.68 3.14 2.73 10.55 83.82 331.69 560.47 2590.84
S.D. 77.83 61.41 77.43 73.94 41.68 16.93 5.90 4.04 13.84 45.96 77.25 87.71 287.22
SKEW 0.15 -0.08 -0.27 0.76 0.56 0.85 2.74 2.02 2.86 0.50 0.18 0.36 0.43
MAX 782.50 519.50 471.50 454.00 213.50 65.00 30.50 16.50 79.00 196.00 526.50 799.50 3367.00
MIN 436.00 229.00 114.50 94.50 7.48 0.00 0.00 0.00 0.00 17.00 149.50 419.00 2034.50
NO YRS 56 54 54 56 53 55 49 53 50 50 53 53 43