WHISKEYTOWN RESERVOIR, CALIFORNIA

Monthly Total Heating Degree Days

(049621)

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
1960 0.00 z 0.00 z 0.00 z 121.00 u 127.50 l 0.00 j 0.00 l 0.00 h 0.00 j 89.00 j 316.50 i 360.50 j 0.00
1961 307.00 m 275.50 k 361.00 i 124.00 k 136.00 i 5.50 g 0.50 j 0.00 g 0.00 p 94.50 k 291.50 i 432.00 k 0.00
1962 416.00 h 378.00 i 406.50 i 65.50 i 95.50 i 6.50 i 0.00 i 8.94 e 23.00 h 136.63 d 337.20 e 306.50 l 482.77
1963 497.50 h 225.50 j 341.00 j 347.50 i 76.00 i 4.00 j 0.00 j 0.00 k 1.50 h 94.00 h 461.54 d 381.00 k 461.54
1964 502.50 i 258.50 k 307.50 k 186.00 h 104.00 k 44.00 0.00 0.00 a 21.00 72.50 508.97 a 614.83 a 1261.30
1965 558.00 c 460.00 364.00 362.50 106.50 19.50 0.00 2.50 27.50 57.50 442.24 a 700.17 b 3100.41
1966 711.40 b 617.62 b 460.35 a 135.00 23.25 a 33.00 0.00 0.00 c 7.50 b 66.50 397.00 607.00 3058.61
1967 631.50 399.50 541.50 585.00 122.00 51.50 0.00 0.00 1.50 83.70 a 281.50 693.37 a 3391.07
1968 684.07 a 421.50 375.50 217.00 108.50 11.00 0.00 21.50 15.50 127.50 464.50 767.80 c 3214.37
1969 565.50 g 664.00 452.50 294.00 48.00 17.00 0.00 0.00 2.00 215.50 268.45 a 512.00 2473.45
1970 578.15 a 394.00 403.00 336.00 99.00 27.00 0.00 0.00 8.50 189.50 396.21 a 743.50 3174.86
1971 621.50 449.56 a 532.00 319.00 152.00 35.00 0.00 0.00 45.00 270.22 a 454.00 780.00 3658.27
1972 693.00 497.50 321.50 314.50 94.50 30.00 0.00 4.98 c 37.00 190.50 485.50 825.50 3494.48
1973 752.50 479.50 541.50 180.00 46.00 5.00 0.00 0.00 25.50 0.00 z 552.50 624.00 3206.50
1974 680.45 a 554.50 502.50 364.00 106.90 b 14.50 17.50 0.00 0.00 99.50 420.00 649.00 3408.85
1975 573.00 586.00 561.00 478.00 84.00 11.50 2.00 4.50 0.00 243.50 455.50 514.00 3513.00
1976 549.50 523.00 455.00 365.69 a 14.97 b 20.00 0.00 29.50 20.50 70.00 242.00 472.00 2762.16
1977 586.00 359.50 512.50 142.50 261.50 6.50 0.00 7.00 62.50 117.50 422.00 572.00 3049.50
1978 544.00 484.50 317.50 351.50 87.50 0.50 0.00 2.50 54.50 38.00 462.00 674.00 3016.50
1979 691.00 580.50 392.00 0.00 z 84.50 7.50 0.00 1.50 2.00 167.00 467.50 532.00 2925.50
1980 563.50 446.00 457.00 254.50 113.00 59.50 0.50 0.00 a 17.00 142.50 338.00 474.82 a 2866.32
1981 528.50 435.00 440.00 200.50 76.00 9.50 0.00 0.00 33.00 194.50 367.00 595.00 2879.00
1982 755.50 501.50 540.00 362.50 41.50 28.50 7.50 0.00 53.50 175.50 519.00 652.50 3637.50
1983 595.00 531.00 518.00 407.00 146.50 2.50 2.50 0.00 11.00 55.00 505.50 691.00 3465.00
1984 498.50 483.00 322.00 310.00 90.50 19.00 0.00 0.00 8.00 279.00 561.00 689.50 3260.50
1985 603.00 458.50 511.50 152.00 85.00 21.00 0.00 0.00 63.00 184.50 504.00 502.00 3084.50
1986 520.50 443.50 281.00 232.00 129.50 0.00 0.00 0.00 128.50 125.00 336.50 571.50 2768.00
1987 717.00 481.00 493.00 110.00 47.00 0.50 8.00 0.00 0.00 36.00 392.00 697.50 2982.00
1988 659.00 349.50 319.00 0.00 z 180.00 76.00 0.00 0.00 6.00 31.50 502.00 620.00 2743.00
1989 662.00 624.00 504.50 215.50 169.50 12.00 0.00 0.00 44.00 192.00 314.00 486.00 3223.50
1990 620.50 567.00 342.00 112.50 125.50 17.50 0.00 5.00 0.00 69.00 427.00 783.00 3069.00
1991 595.00 297.50 560.50 307.50 133.00 3.00 0.00 0.00 0.00 118.50 333.50 573.00 2921.50
1992 647.00 439.00 360.00 184.50 4.50 41.00 4.50 0.00 0.00 100.00 445.50 747.00 2973.00
1993 780.00 611.50 345.00 345.00 145.50 65.50 0.00 0.00 0.50 99.50 448.00 650.50 3491.00
1994 538.50 581.50 291.50 194.50 98.50 9.00 0.00 0.00 0.00 137.00 652.50 770.50 3273.50
1995 636.50 352.00 516.00 320.50 147.00 77.00 1.00 0.00 0.00 56.00 222.50 572.00 2900.50
1996 638.50 437.50 361.50 270.50 97.50 7.00 0.00 0.00 15.00 195.00 354.50 598.50 2975.50
1997 626.00 435.00 285.00 301.00 35.00 10.50 4.50 0.50 19.50 151.50 402.00 621.00 2891.50
1998 648.50 620.00 408.00 331.50 292.50 21.00 0.00 0.00 15.00 123.50 469.50 685.50 3615.00
1999 594.50 641.00 545.50 290.00 106.00 40.00 0.00 0.00 0.00 56.00 355.50 540.43 a 3168.93
2000 623.74 b 551.50 360.00 163.00 121.00 7.76 a 0.00 0.00 25.50 171.00 485.50 510.00 3019.00
2001 610.50 582.00 237.00 297.00 20.00 17.00 0.00 0.00 1.00 46.50 409.00 670.50 2890.50
2002 676.50 414.50 418.50 165.50 85.50 4.50 0.00 z 0.00 0.00 77.00 329.00 632.00 2803.00
2003 501.50 457.50 402.50 409.50 140.50 0.00 0.00 0.00 2.50 31.00 558.00 676.00 3179.00
2004 697.50 545.50 201.50 198.50 51.50 1.00 0.00 0.00 19.00 218.50 0.00 z 592.00 2525.00
2005 661.00 386.50 339.50 317.50 149.50 72.00 0.00 0.00 3.50 144.00 387.00 577.50 3038.00
2006 646.00 429.50 636.50 391.50 60.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2164.00
Period of Record Statistics
MEAN 626.79 489.84 422.12 282.22 103.12 22.76 1.17 2.06 18.95 127.50 421.78 630.01 3154.69
S.D. 69.21 89.52 102.41 103.72 58.75 21.90 3.25 5.70 25.46 67.43 90.95 91.95 254.93
SKEW 0.12 0.08 -0.08 0.42 0.98 1.16 3.65 3.67 2.25 0.39 -0.05 0.13 0.48
MAX 780.00 664.00 636.50 585.00 292.50 77.00 17.50 29.50 128.50 279.00 652.50 825.50 3658.27
MIN 498.50 297.50 201.50 110.00 4.50 0.00 0.00 0.00 0.00 31.00 222.50 472.00 2762.16
NO YRS 41 42 42 40 42 42 41 43 42 42 43 42 35