STONY GORGE RESERVOIR, CALIFORNIA

Monthly Total Heating Degree Days

(048587)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5.50 0.00 52.00 122.00 424.50 604.00 g 604.00
1949 878.50 628.00 499.50 135.00 99.20 a 3.50 0.00 0.00 6.00 170.00 271.00 699.00 3389.70
1950 842.00 493.00 481.50 208.00 108.50 30.50 0.00 0.00 24.50 138.00 314.50 553.50 3194.00
1951 685.00 547.50 429.50 216.50 111.50 7.00 0.00 2.58 a 5.00 139.00 433.89 c 642.50 3219.97
1952 787.00 515.00 540.50 212.00 83.00 36.50 0.00 0.00 14.00 50.00 456.00 641.50 3335.50
1953 498.00 436.00 448.00 277.00 199.50 38.50 0.00 2.00 0.00 148.00 386.50 530.50 2964.00
1954 636.00 408.00 511.50 185.00 35.50 50.50 0.00 2.00 20.50 124.50 391.50 702.00 3067.00
1955 740.00 545.50 443.00 390.50 80.50 11.00 0.00 0.00 12.50 115.50 465.50 599.50 3403.50
1956 650.50 617.00 422.50 257.00 115.00 6.00 0.00 0.00 7.50 194.00 339.50 617.50 3226.50
1957 777.00 438.00 393.00 230.00 123.50 2.00 0.00 0.00 a 16.00 212.50 467.00 626.00 3285.00
1958 623.50 409.00 556.50 279.50 31.50 20.00 0.00 0.00 9.00 53.00 321.50 415.00 2718.50
1959 570.50 498.50 325.50 105.50 99.50 0.00 0.00 3.50 34.00 45.00 327.50 582.00 2591.50
1960 688.50 499.50 321.00 289.00 123.00 0.00 0.00 0.00 0.00 107.50 439.50 586.00 3054.00
1961 611.50 424.50 459.50 223.50 128.00 0.50 0.00 0.00 6.72 a 143.00 428.50 652.00 3077.72
1962 596.00 528.50 497.50 136.00 120.00 4.00 g 0.00 b 0.00 c 7.50 101.50 358.50 519.50 2865.00
1963 694.50 293.00 487.50 418.00 102.50 5.00 0.00 0.00 1.00 127.50 441.50 656.00 3226.50
1964 682.50 460.50 469.50 268.50 130.50 25.50 0.00 0.00 12.00 74.00 475.00 530.00 3128.00
1965 578.50 471.00 414.00 283.00 106.00 10.00 0.00 0.00 17.50 40.50 392.00 722.50 3035.00
1966 686.00 559.50 400.00 123.50 21.00 18.50 0.00 0.00 8.50 71.00 378.50 588.00 2854.50
1967 624.00 429.50 506.50 560.50 119.50 27.00 0.00 0.00 0.00 67.00 303.50 644.50 3282.00
1968 704.50 375.50 399.50 236.50 107.00 6.00 0.00 8.50 12.00 128.50 427.00 739.50 3144.50
1969 721.00 601.50 459.32 a 317.00 39.00 5.00 0.00 0.00 0.00 179.00 335.00 513.00 3169.82
1970 542.50 389.50 352.00 368.00 62.50 6.00 0.00 0.00 3.50 156.00 361.50 678.00 2919.50
1971 588.50 461.50 477.50 326.50 117.00 19.00 0.00 3.00 43.00 270.00 458.50 781.50 3546.00
1972 691.50 472.00 313.50 284.50 97.00 22.50 0.00 0.50 35.00 197.50 521.00 849.50 3484.50
1973 777.50 481.00 535.00 219.00 51.00 8.50 0.00 0.00 9.50 142.00 478.00 609.50 3311.00
1974 681.50 552.00 464.50 370.50 106.50 8.00 12.00 0.00 0.00 106.00 461.50 699.00 3461.50
1975 652.00 563.50 503.50 464.00 110.00 13.00 1.00 0.50 0.00 235.00 497.00 589.00 3628.50
1976 632.00 501.00 492.00 349.50 13.50 26.00 0.00 19.00 11.00 87.00 276.50 569.00 2976.50
1977 695.00 411.50 553.50 150.50 262.00 0.50 0.00 0.00 28.00 111.50 439.00 552.00 3203.50
1978 546.00 472.50 316.00 328.00 93.50 0.00 1.00 4.00 50.50 53.50 502.50 562.50 g 2367.50
1979 690.50 549.50 407.50 321.00 95.50 4.00 0.00 1.00 3.00 149.00 496.00 598.50 3315.50
1980 573.50 452.50 494.50 275.50 138.00 59.00 1.00 0.00 6.00 164.00 391.00 536.50 3091.50
1981 579.50 437.00 440.00 241.50 79.00 3.00 0.00 0.00 22.50 207.50 342.00 567.00 2919.00
1982 762.00 508.00 534.00 368.00 58.00 35.50 2.00 0.00 40.50 176.50 533.50 642.00 3660.00
1983 616.50 0.00 z 313.00 m 408.00 159.50 4.00 6.00 0.00 12.00 72.00 467.50 627.50 2373.00
1984 527.50 468.00 0.00 z 282.50 82.00 14.48 a 0.00 1.50 21.00 0.00 z 0.00 z 0.00 z 1396.98
1985 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 197.50 578.50 639.50 1415.50
1986 535.00 439.00 355.00 297.50 162.00 0.50 0.00 0.00 110.00 107.50 320.00 630.50 2957.00
1987 670.00 458.50 457.50 113.50 44.43 a 1.50 0.00 0.00 0.00 32.00 407.50 652.00 2836.93
1988 627.00 387.50 352.50 220.00 170.00 61.50 0.00 1.00 3.50 40.50 432.00 610.00 2905.50
1989 665.50 594.50 462.50 163.50 91.50 10.50 0.00 0.00 33.50 152.00 359.50 568.00 3101.00
1990 645.00 575.50 372.00 120.00 108.00 19.50 0.00 6.00 1.50 64.00 432.00 785.50 3129.00
1991 627.50 336.00 553.50 305.50 172.00 12.00 0.00 3.00 0.00 117.00 308.00 588.50 3023.00
1992 654.00 397.00 358.50 201.00 22.00 29.50 3.50 0.00 0.00 87.50 444.00 718.50 2915.50
1993 737.50 571.00 330.50 319.00 130.50 50.00 0.00 0.00 13.50 96.00 479.50 648.50 3376.00
1994 574.50 603.50 371.50 255.00 101.50 13.00 0.00 0.00 5.00 170.50 668.00 797.50 3560.00
1995 602.50 387.00 518.00 354.00 177.00 71.50 0.50 0.00 8.00 102.00 306.00 594.00 3120.50
1996 631.00 467.00 414.50 312.00 117.50 7.50 0.00 0.00 15.50 182.50 371.50 567.50 3086.50
1997 615.50 469.50 342.00 242.50 44.50 5.50 2.00 0.00 14.00 163.00 365.50 645.00 2909.00
1998 608.00 568.00 445.50 362.00 308.50 17.00 0.00 0.00 18.00 182.50 468.50 714.00 3692.00
1999 607.00 583.50 540.00 294.50 127.50 50.00 0.00 1.00 1.00 102.00 390.50 595.50 3292.50
2000 629.50 503.00 435.00 214.50 152.50 13.00 0.00 0.00 33.50 210.28 a 594.00 596.00 3381.28
2001 682.50 564.00 347.50 357.50 12.00 9.00 0.00 0.00 0.00 62.50 389.00 639.50 3063.50
2002 654.00 467.50 478.50 227.00 126.50 0.00 0.00 0.00 8.50 121.50 351.50 601.50 3036.50
2003 494.00 496.00 408.00 429.00 167.00 0.00 0.00 0.00 0.50 40.50 532.50 622.00 3189.50
2004 649.21 e 525.00 244.00 197.50 78.00 2.50 0.00 0.00 25.50 0.00 z 451.00 580.50 2753.21
2005 667.00 424.50 378.50 318.50 159.00 53.00 0.00 0.00 14.00 153.00 369.50 589.50 3126.50
2006 611.00 474.00 651.00 363.50 59.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2159.00
Period of Record Statistics
MEAN 649.44 485.53 439.36 276.77 107.72 17.34 0.61 1.04 15.04 126.12 417.93 626.23 3168.35
S.D. 77.87 73.63 79.68 93.62 55.84 18.35 1.95 2.91 18.56 55.96 81.21 77.83 238.37
SKEW 0.54 -0.12 -0.03 0.34 0.92 1.27 4.31 4.64 2.72 0.24 0.52 0.49 0.17
MAX 878.50 628.00 651.00 560.50 308.50 71.50 12.00 19.00 110.00 270.00 668.00 849.50 3692.00
MIN 494.00 293.00 244.00 105.50 12.00 0.00 0.00 0.00 0.00 32.00 271.00 415.00 2591.50
NO YRS 57 56 55 57 57 55 57 57 57 56 57 55 51