BALCH POWER HOUSE, CALIFORNIA

Monthly Total Heating Degree Days

(040449)

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 0.00 z 0.00
1951 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
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 0.00 z 0.00 z 0.00 z 0.00
1953 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
1954 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
1955 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
1956 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
1957 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
1958 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
1959 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
1960 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
1961 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
1962 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 4.00 57.00 310.00 486.50 857.50
1963 664.00 301.26 a 434.50 392.50 82.00 18.50 0.00 0.00 4.50 61.50 387.00 604.50 2950.26
1964 658.50 495.50 441.50 251.00 147.00 29.48 a 0.00 0.00 5.50 38.50 471.50 581.00 3119.48
1965 602.00 440.00 361.50 315.00 113.50 21.50 0.00 0.00 16.50 35.50 350.50 642.50 2898.50
1966 675.50 533.00 296.50 92.50 23.00 6.50 0.00 0.00 1.00 46.00 284.50 620.50 2579.00
1967 565.50 434.50 410.00 526.00 142.00 45.00 0.00 0.00 0.00 17.00 205.00 742.00 3087.00
1968 646.50 319.00 330.50 185.00 71.00 12.00 0.00 0.50 4.00 66.50 399.50 655.00 2689.50
1969 608.63 a 560.50 427.00 255.50 96.50 31.50 0.00 0.00 0.00 155.00 324.00 562.00 3020.63
1970 548.50 321.00 371.50 327.50 58.50 11.50 0.00 0.00 0.00 84.00 328.50 646.50 2697.50
1971 648.50 497.50 390.00 288.50 151.50 23.50 0.00 0.00 25.50 199.50 432.00 0.00 z 2656.50
1972 727.50 410.00 191.00 185.17 a 56.00 1.50 0.00 0.00 1.00 134.50 514.00 732.50 2953.17
1973 682.00 460.50 559.00 286.80 e 37.00 5.00 0.00 0.00 1.50 124.00 453.50 571.00 3180.30
1974 633.50 477.00 379.00 272.59 a 75.00 0.50 0.00 0.00 0.00 86.50 403.00 683.50 3010.59
1975 613.50 496.00 467.00 425.00 85.00 6.50 0.00 0.50 18.50 182.00 448.50 606.50 3349.00
1976 598.50 487.50 415.50 347.50 18.50 21.50 3.00 0.00 1.50 70.50 308.50 559.50 2832.00
1977 655.00 360.50 498.50 91.50 250.50 4.00 0.00 0.00 22.50 52.00 376.00 479.00 2789.50
1978 527.00 447.00 275.00 328.00 119.83 e 0.52 a 0.00 0.00 17.00 34.50 500.50 750.00 2999.34
1979 694.00 556.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 a 0.00 83.00 417.00 498.00 2248.50
1980 558.00 428.00 440.41 b 263.04 b 178.52 b 34.00 0.00 0.00 a 1.00 85.25 a 333.50 493.33 b 2815.04
1981 475.33 a 397.50 461.38 a 220.86 a 68.64 c 2.59 a 0.00 a 0.00 a 0.00 149.00 351.50 513.50 2640.31
1982 724.50 430.50 493.50 306.00 56.50 30.00 3.00 0.00 29.00 95.50 520.00 642.00 3330.50
1983 595.00 465.00 469.00 390.00 165.50 34.50 0.00 0.00 8.50 43.00 404.00 551.00 3125.50
1984 577.50 471.00 306.00 297.50 44.50 10.00 0.00 0.00 0.00 191.00 429.00 711.00 3037.50
1985 694.00 450.00 493.00 108.00 48.50 15.50 0.00 0.00 24.50 118.50 485.00 589.50 3026.50
1986 427.00 430.00 314.00 235.00 124.00 3.00 0.00 0.00 84.00 76.00 335.50 556.00 2584.50
1987 668.50 469.00 409.00 91.00 51.00 0.00 0.50 0.00 0.00 25.00 440.00 675.50 2829.50
1988 615.35 a 382.50 304.50 203.50 131.50 24.50 0.00 0.00 5.00 13.50 401.00 661.50 2742.85
1989 726.50 503.00 324.50 97.50 70.00 0.00 0.00 0.00 13.00 115.50 354.50 585.50 2790.00
1990 652.50 545.00 321.50 110.00 50.50 5.50 0.00 0.00 0.00 11.50 332.50 725.50 2754.50
1991 615.00 259.50 550.00 243.50 116.50 3.00 0.00 0.00 0.00 93.50 333.50 582.50 2797.00
1992 679.00 374.50 310.00 79.50 0.50 13.00 0.00 0.00 0.00 19.00 358.00 683.00 2516.50
1993 619.00 476.50 169.00 i 244.00 49.50 49.00 0.00 0.00 z 2.00 60.50 355.20 e 672.50 2528.20
1994 600.00 536.67 a 262.50 203.00 100.50 1.00 0.00 0.00 4.00 j 126.67 b 381.50 i 664.95 a 2495.29
1995 633.00 381.50 426.00 289.00 207.00 76.50 0.00 0.00 2.50 5.00 l 253.00 558.00 2826.50
1996 585.00 449.50 310.00 187.00 34.00 12.00 0.00 0.00 1.00 159.00 402.50 617.50 2757.50
1997 632.50 485.00 233.53 a 133.00 i 5.00 1.00 i 0.00 0.00 0.50 115.00 347.50 712.50 2531.53
1998 579.50 589.50 433.00 381.50 293.00 95.00 c 0.00 0.00 13.50 108.50 451.50 733.50 3678.50
1999 626.31 d 532.00 c 447.43 a 327.78 c 86.59 b 37.22 c 0.00 b 0.00 d 0.00 b 7.50 282.32 b 592.88 c 2940.03
2000 433.00 g 138.00 s 378.09 c 107.50 i 38.48 b 15.58 d 0.00 k 0.00 e 2.22 c 100.00 i 530.56 c 411.50 h 964.93
2001 523.50 f 579.04 c 320.33 d 324.64 b 4.77 e 0.00 f 0.00 0.00 e 0.00 c 17.29 e 339.64 b 681.45 c 2267.16
2002 683.00 423.00 393.00 186.50 82.00 0.00 0.00 b 0.00 2.50 105.00 317.07 a 616.50 2808.57
2003 480.00 499.00 360.50 365.00 127.00 0.00 0.00 0.00 0.00 12.50 461.50 568.50 2874.00
2004 621.66 c 543.50 152.50 0.00 z 20.50 1.50 0.00 0.00 14.00 187.00 508.50 532.50 f 2049.16
2005 622.00 431.00 367.00 281.50 123.00 23.00 0.00 0.00 2.50 f 49.00 249.50 f 496.50 2393.00
2006 598.50 438.00 471.00 f 258.00 f 46.50 a 0.50 g 0.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1083.00
Period of Record Statistics
MEAN 619.94 455.05 378.75 256.55 89.55 18.13 0.15 0.02 7.77 83.61 386.69 617.20 2915.29
S.D. 65.29 75.07 90.50 104.34 64.06 20.85 0.65 0.11 14.63 54.70 76.99 76.72 244.03
SKEW -0.81 -0.49 -0.27 0.09 1.13 1.87 4.16 4.31 3.62 0.48 0.03 -0.05 0.97
MAX 727.50 589.50 559.00 526.00 293.00 95.00 3.00 0.50 84.00 199.50 530.56 750.00 3678.50
MIN 427.00 259.50 152.50 79.50 0.50 0.00 0.00 0.00 0.00 7.50 205.00 479.00 2516.50
NO YRS 42 43 41 39 43 40 42 43 42 42 42 41 33