GRATON, CALIFORNIA

Monthly Total Heating Degree Days

(043578)

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 84.00 55.00 110.00 225.50 412.50 702.50 1589.50
1949 806.50 569.50 446.50 270.50 222.50 76.00 61.00 55.50 60.50 244.00 303.00 661.00 3776.50
1950 725.50 465.50 478.00 282.00 241.00 134.00 41.50 37.50 91.50 192.50 272.00 473.50 3434.50
1951 596.50 488.50 428.50 365.00 211.00 150.00 68.50 83.38 b 101.00 f 188.00 393.00 609.00 3581.38
1952 692.50 485.50 497.50 306.50 189.00 163.00 38.00 57.00 64.50 203.00 472.00 565.50 3734.00
1953 466.50 424.00 449.00 375.50 290.00 133.00 25.50 55.00 64.50 218.50 369.50 519.50 3390.50
1954 596.00 438.00 524.00 270.50 184.50 104.50 28.50 91.50 118.50 234.50 422.00 339.00 m 3012.50
1955 693.00 511.50 437.50 453.50 184.50 122.00 46.50 86.00 106.50 199.50 417.50 502.50 3760.50
1956 546.50 567.50 463.50 335.00 211.00 65.00 57.50 55.00 74.50 266.50 397.50 646.50 3686.00
1957 714.00 435.50 416.50 293.00 208.00 27.00 36.50 44.00 70.00 244.38 a 469.00 611.00 3568.88
1958 584.50 340.50 514.00 277.50 164.00 41.50 35.50 14.00 27.50 162.50 356.00 441.50 2959.00
1959 513.50 470.50 321.00 217.50 193.50 40.50 8.50 39.50 61.50 115.50 373.89 c 577.24 b 2932.63
1960 594.50 447.50 380.00 301.50 194.50 57.50 25.32 a 32.00 113.00 210.00 440.00 589.50 3385.32
1961 659.00 392.00 459.00 287.50 262.50 58.00 24.00 9.00 80.50 203.50 418.50 635.50 3489.00
1962 596.50 498.50 501.50 234.00 222.00 109.00 61.00 25.50 109.00 205.50 354.50 570.50 3487.50
1963 706.50 281.50 481.00 414.00 206.50 95.00 42.50 30.50 41.50 182.00 428.50 710.00 3619.50
1964 634.00 467.11 a 500.00 347.50 284.50 93.00 27.00 17.50 85.50 111.00 462.00 485.00 3514.11
1965 587.50 466.00 436.00 322.50 214.00 168.50 52.50 13.50 152.00 117.00 368.50 726.50 3624.50
1966 594.50 507.50 436.50 226.50 203.00 68.00 51.50 39.00 57.50 172.00 382.50 543.50 3282.00
1967 544.00 438.00 482.00 528.50 191.00 118.50 27.00 26.00 16.15 d 101.50 289.00 609.00 3370.65
1968 634.97 b 350.00 374.00 300.50 222.50 50.69 a 8.00 u 31.00 36.50 189.00 408.00 656.50 3253.66
1969 661.50 548.00 448.00 352.50 155.00 65.00 30.50 21.50 60.50 207.00 367.00 465.00 3381.50
1970 492.00 399.50 369.00 366.00 147.00 85.50 58.00 75.00 54.50 264.50 331.00 604.00 3246.00
1971 571.00 466.50 471.50 376.00 251.00 83.00 25.50 17.50 74.00 289.00 421.00 689.50 3735.50
1972 688.00 436.00 317.50 317.50 183.00 92.50 38.00 27.50 109.50 197.50 456.50 733.50 3597.00
1973 608.00 400.00 495.00 261.50 178.00 75.50 35.50 78.00 74.00 197.00 408.50 501.50 3312.50
1974 602.50 504.00 442.50 347.00 223.50 102.00 34.50 26.50 56.50 164.00 434.50 605.00 3542.50
1975 636.50 481.00 463.50 466.00 191.00 124.50 58.50 51.50 85.00 267.50 484.00 549.50 3858.50
1976 617.50 486.50 476.00 381.00 160.50 108.50 16.00 48.50 64.50 151.50 289.00 600.50 3400.00
1977 645.50 397.00 485.00 254.50 258.50 74.50 30.50 14.00 57.50 163.00 371.50 474.00 3225.50
1978 474.50 397.50 271.50 324.50 104.00 41.50 26.50 21.00 42.50 126.00 450.50 719.50 2999.50
1979 643.50 495.50 410.50 281.50 137.00 67.50 24.50 22.50 17.00 142.00 435.50 560.00 3237.00
1980 539.50 377.50 430.00 294.50 195.50 101.00 38.00 71.00 77.00 187.50 368.50 553.50 3233.50
1981 530.50 389.00 435.50 271.00 121.50 18.00 41.50 19.50 66.00 248.00 312.50 479.00 2932.00
1982 695.00 430.50 476.50 349.00 184.00 133.50 37.00 15.00 39.00 175.50 475.50 599.00 3609.50
1983 619.50 376.50 405.00 351.50 174.50 30.00 21.00 2.50 27.00 81.50 379.00 472.50 2940.50
1984 518.00 470.00 291.00 319.50 102.00 51.50 24.50 17.00 21.50 234.00 451.00 639.50 3139.50
1985 684.50 419.50 477.50 211.50 207.50 44.50 22.50 55.00 84.00 212.50 493.50 680.00 3592.50
1986 468.00 337.00 283.50 274.50 170.50 52.00 47.50 30.50 145.00 176.50 351.00 583.50 2919.50
1987 617.00 429.50 413.50 213.00 132.00 71.00 49.50 50.50 58.50 105.50 388.00 567.00 3095.00
1988 573.50 390.00 328.50 260.50 204.50 78.50 8.50 42.00 88.50 159.00 365.50 580.50 3079.50
1989 624.50 556.00 403.50 230.50 183.50 73.50 24.00 26.50 92.00 207.00 372.50 634.50 3428.00
1990 582.00 524.00 389.50 209.00 193.50 55.00 14.00 5.50 7.00 130.00 423.00 714.50 3247.00
1991 574.50 331.00 485.50 307.50 229.50 120.50 33.50 32.00 43.00 124.00 322.00 602.00 3205.00
1992 634.00 357.00 331.00 202.00 89.50 57.00 11.50 12.50 31.50 93.50 352.50 640.00 2812.00
1993 623.00 484.50 295.00 287.50 153.00 65.50 28.50 22.00 52.50 116.50 423.50 644.00 3195.50
1994 569.50 502.50 338.50 269.50 167.50 77.00 57.50 22.00 38.50 178.00 549.00 658.50 3428.00
1995 464.00 327.50 407.00 290.50 212.50 88.50 16.50 21.50 25.00 115.50 245.00 473.00 2686.50
1996 521.00 362.50 338.50 256.50 172.00 67.50 19.50 34.50 63.50 183.00 329.50 464.50 2812.50
1997 504.00 388.00 317.00 246.00 93.50 44.50 21.50 13.50 16.00 191.50 320.00 570.00 2725.50
1998 489.50 454.00 390.50 329.00 275.00 104.50 27.00 24.00 63.50 210.50 422.50 657.00 3447.00
1999 606.00 511.50 513.00 313.00 230.00 122.50 68.00 35.50 61.50 156.00 336.50 549.00 3502.50
2000 530.00 429.50 386.00 242.00 165.00 79.50 66.50 34.50 59.00 204.50 467.00 562.50 3226.00
2001 650.00 478.50 316.50 366.00 66.50 32.50 48.50 29.50 55.50 115.50 327.00 526.50 3012.50
2002 598.50 414.00 420.00 270.50 217.00 42.50 29.50 40.00 56.50 192.00 298.00 494.50 3073.00
2003 414.00 425.50 327.00 393.00 181.50 60.50 20.50 8.00 31.00 82.50 453.50 535.00 2932.00
2004 547.50 441.00 216.50 223.00 143.00 39.50 15.00 8.00 31.00 189.00 374.00 515.00 2742.50
2005 591.50 366.50 298.50 298.00 144.50 68.50 9.50 33.50 87.00 163.00 301.50 514.50 2876.50
2006 502.50 429.00 543.00 311.00 152.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1938.00
Period of Record Statistics
MEAN 593.08 438.93 412.65 305.63 187.06 80.24 35.46 34.60 64.16 179.08 388.96 583.28 3286.00
S.D. 76.68 64.15 75.53 66.39 47.43 35.17 17.30 21.30 31.57 49.83 62.96 77.87 307.08
SKEW 0.08 -0.09 -0.50 0.92 -0.21 0.55 0.63 0.91 0.57 -0.07 -0.02 0.12 -0.16
MAX 806.50 569.50 543.00 528.50 290.00 168.50 84.00 91.50 152.00 289.00 549.00 733.50 3858.50
MIN 414.00 281.50 216.50 202.00 66.50 18.00 8.50 2.50 7.00 81.50 245.00 441.50 2686.50
NO YRS 58 58 58 58 58 57 57 58 57 58 58 57 54