EAST PARK RESERVOIR, CALIFORNIA

Monthly Total Heating Degree Days

(042640)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200308
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5.50 0.00 57.50 126.50 428.00 779.50 1397.00
1949 893.50 624.50 514.00 157.00 86.50 0.00 r 0.00 0.00 6.00 178.00 272.50 698.00 3430.00
1950 808.58 a 489.50 493.00 210.00 126.50 37.50 0.00 0.00 16.00 169.50 312.93 a 532.00 3195.51
1951 643.50 532.00 466.50 226.00 119.50 8.00 0.00 7.50 11.00 169.50 453.50 659.00 3296.00
1952 822.00 559.00 575.50 268.50 114.00 82.00 0.00 0.00 23.50 73.50 470.17 a 650.00 3638.17
1953 534.00 463.00 490.00 316.50 264.00 79.00 0.00 13.50 5.00 190.50 372.50 555.70 d 3283.70
1954 666.50 417.00 534.00 225.50 68.50 79.50 0.00 10.50 33.50 162.75 a 394.00 737.00 3328.75
1955 781.00 595.00 523.00 444.00 136.50 40.00 2.50 0.00 32.50 138.00 482.00 605.50 3780.00
1956 640.00 654.50 474.00 326.90 a 144.50 26.00 0.00 0.00 11.38 a 220.50 372.00 607.50 3477.28
1957 786.50 464.50 442.50 281.50 169.50 5.50 0.00 6.50 30.50 264.00 491.50 638.00 3580.50
1958 659.50 425.50 602.50 333.00 63.50 37.00 3.50 0.00 19.00 73.00 380.50 455.50 3052.50
1959 591.00 550.50 358.00 163.00 154.50 3.50 0.00 12.50 44.00 74.00 355.00 615.00 2921.00
1960 733.00 548.00 367.00 338.00 192.50 0.00 0.00 2.00 0.50 120.50 f 476.00 605.00 3262.00
1961 647.00 459.50 514.00 278.00 194.50 3.00 1.15 d 0.00 24.50 181.00 487.76 a 689.50 3479.91
1962 653.00 566.00 564.00 200.00 196.50 12.00 0.00 0.00 27.50 161.50 383.00 564.50 3328.00
1963 741.50 343.50 557.00 484.50 144.00 26.00 2.21 c 4.00 11.00 187.50 487.00 684.00 3672.21
1964 728.00 530.50 541.00 335.50 195.50 55.50 0.50 0.00 45.50 99.50 517.24 a 556.50 3605.24
1965 610.50 516.00 469.00 344.00 166.50 31.00 0.00 4.00 52.50 86.50 442.00 761.00 3483.00
1966 715.50 623.00 472.50 167.00 48.50 36.00 2.00 8.50 23.00 120.38 a 386.11 c 635.50 3237.99
1967 621.50 446.50 549.50 609.00 168.95 a 5.00 j 0.00 0.00 0.00 99.50 326.50 683.00 3504.45
1968 739.50 396.50 437.50 293.50 156.00 20.50 0.00 23.00 22.00 172.00 479.50 763.50 3503.50
1969 743.50 645.50 501.50 376.50 72.50 19.50 0.00 0.00 9.50 247.00 380.00 534.50 3530.00
1970 565.50 446.44 a 420.50 432.00 103.50 28.00 0.00 0.00 24.50 207.50 397.50 732.50 3357.94
1971 641.00 514.00 535.50 394.50 190.50 41.00 0.00 2.00 52.50 290.00 476.00 814.00 3951.00
1972 718.00 499.50 346.00 363.00 127.00 31.00 0.00 9.00 67.00 246.00 527.50 850.50 3784.50
1973 793.50 498.00 561.00 245.00 77.00 19.50 0.00 4.00 20.00 184.50 483.00 626.50 3512.00
1974 715.50 597.50 493.50 418.50 142.50 12.50 11.00 0.00 0.50 123.00 494.50 700.00 3709.00
1975 674.50 584.50 527.50 503.50 136.50 20.50 11.00 1.50 1.00 257.00 518.50 602.00 3838.00
1976 655.00 533.50 524.00 395.50 33.00 49.50 2.00 31.50 20.00 111.50 306.00 598.50 3260.00
1977 706.50 448.00 589.50 180.50 304.50 9.00 0.50 0.00 53.00 166.00 470.50 575.50 3503.50
1978 549.00 514.00 353.00 389.50 128.00 7.00 4.00 15.50 82.00 95.00 556.00 760.00 3453.00
1979 732.50 581.50 436.50 342.50 108.50 24.50 2.00 5.50 9.50 183.00 535.50 627.00 3588.50
1980 591.50 500.00 542.00 313.50 161.50 83.00 5.00 0.00 21.50 203.50 425.50 561.50 3408.50
1981 587.45 a 479.00 477.50 281.00 94.50 9.50 0.00 0.00 25.50 216.00 393.50 544.00 3107.95
1982 816.50 535.50 610.50 417.00 148.50 94.00 1.00 6.00 53.50 260.00 502.00 597.50 4042.00
1983 602.00 457.50 501.00 416.50 167.00 15.00 16.50 0.00 4.50 90.50 322.50 480.50 3073.50
1984 508.00 527.50 357.00 329.00 113.50 50.50 0.00 0.00 6.50 252.00 517.00 722.00 3383.00
1985 707.50 518.50 605.50 228.00 178.00 29.00 0.00 0.00 12.50 0.00 z 0.00 z 612.00 2891.00
1986 565.50 446.00 344.00 342.00 168.50 4.00 0.00 0.00 163.50 166.00 367.00 657.50 3224.00
1987 698.50 512.50 521.00 200.50 98.50 7.50 10.00 3.50 2.50 83.00 447.00 697.00 3281.50
1988 643.50 414.00 375.00 313.50 232.50 98.00 0.00 0.00 16.50 58.50 454.00 662.00 3267.50
1989 744.00 597.00 520.00 213.50 171.50 30.00 0.00 1.50 41.00 203.00 402.00 599.50 3523.00
1990 676.50 597.00 415.00 191.50 138.00 17.50 2.00 7.50 4.50 101.50 416.50 772.00 3339.50
1991 674.00 375.50 594.00 322.50 196.00 16.50 0.00 3.50 4.50 128.50 391.00 652.00 3358.00
1992 722.50 485.50 403.50 260.00 43.00 38.50 6.00 0.00 1.00 45.00 376.50 691.00 3072.50
1993 708.50 577.00 342.00 308.00 160.00 49.50 0.00 1.50 22.00 113.00 482.00 667.50 3431.00
1994 575.00 598.00 360.00 280.00 113.00 19.50 0.00 0.00 10.50 211.00 657.50 767.00 3591.50
1995 606.50 385.00 523.38 a 342.00 175.50 66.00 0.50 1.50 14.50 116.00 287.50 556.50 3074.88
1996 608.00 490.50 506.50 264.50 90.00 10.00 0.00 0.00 31.50 219.50 401.00 617.00 3238.50
1997 656.50 489.50 361.50 274.00 51.50 14.50 3.50 0.00 21.00 191.50 391.00 679.00 3133.50
1998 637.05 a 588.00 479.00 429.50 327.00 22.50 0.00 0.00 21.50 226.50 471.00 722.00 3924.05
1999 611.00 585.00 553.50 324.50 155.50 59.00 2.00 4.00 5.00 109.53 a 401.50 609.50 3420.03
2000 666.00 551.50 447.50 263.00 166.00 27.50 0.50 0.50 38.00 239.50 596.00 621.50 3617.50
2001 698.50 589.04 a 368.90 a 366.50 42.50 13.50 0.00 0.00 8.00 98.00 409.50 658.50 3252.94
2002 738.00 508.00 515.50 257.50 148.50 0.00 0.00 0.00 25.00 179.00 383.50 594.50 3349.50
2003 528.50 522.50 414.50 460.00 174.00 1.50 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 2101.00
Period of Record Statistics
MEAN 674.20 516.30 479.48 317.10 142.70 30.58 1.69 3.40 25.28 161.68 433.51 647.96 3429.30
S.D. 81.95 71.35 78.50 94.13 60.10 25.54 3.36 6.09 26.58 62.16 77.20 82.46 247.86
SKEW 0.22 -0.25 -0.31 0.54 0.59 1.07 2.65 2.67 2.85 0.06 0.27 0.17 0.38
MAX 893.50 654.50 610.50 609.00 327.00 98.00 16.50 31.50 163.50 290.00 657.50 850.50 4042.00
MIN 508.00 343.50 342.00 157.00 33.00 0.00 0.00 0.00 0.00 45.00 272.50 455.50 2921.00
NO YRS 55 55 55 55 55 53 56 56 55 53 54 55 50