LIVERMORE, CALIFORNIA

Monthly Total Heating Degree Days

(044997)

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
1930 0.00 z 0.00 z 0.00 z 223.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 223.50
1931 454.50 310.50 259.50 152.50 27.00 10.00 0.00 0.00 9.31 a 75.50 308.00 563.50 2170.31
1932 565.50 465.50 264.00 246.50 81.00 15.00 18.50 7.50 3.00 97.00 220.50 688.50 2672.50
1933 684.00 485.50 355.00 286.50 283.00 69.50 1.50 5.50 20.50 35.00 301.00 543.00 3070.00
1934 526.00 356.50 183.00 121.00 59.00 42.00 14.50 1.00 39.50 105.00 299.00 536.50 2283.00
1935 615.50 489.00 547.50 298.50 182.50 35.50 24.00 6.00 38.50 212.50 445.50 537.00 3432.00
1936 473.00 440.50 320.00 0.00 z 78.50 23.50 4.00 1.50 8.00 76.50 339.00 590.00 2354.50
1937 789.50 486.00 356.00 306.00 95.50 25.00 0.00 2.00 19.00 60.50 271.00 487.50 2898.00
1938 575.00 431.50 454.00 308.00 114.50 30.50 0.00 11.50 17.00 166.50 401.00 516.50 3026.00
1939 542.50 500.50 466.50 184.50 106.00 46.00 10.85 a 0.00 23.50 108.50 306.50 465.00 2760.35
1940 511.50 372.34 a 302.00 226.50 87.00 2.50 1.00 1.50 10.50 123.00 367.00 419.50 2424.34
1941 467.50 362.00 311.00 296.50 90.00 42.50 0.00 5.00 32.50 177.50 327.50 480.00 2592.00
1942 587.50 458.50 435.00 324.50 227.00 44.50 0.50 0.50 25.50 70.00 343.50 502.00 3019.00
1943 526.50 421.50 358.50 238.50 121.50 92.00 4.00 4.00 5.00 136.50 328.50 487.50 2724.00
1944 529.00 495.00 370.50 330.52 a 121.00 79.50 4.00 1.50 15.50 69.00 418.00 515.00 2948.52
1945 646.00 432.50 520.00 264.00 163.00 43.00 2.00 0.00 7.00 40.50 403.00 577.00 3098.00
1946 602.00 555.00 458.00 287.00 180.00 96.50 5.00 10.50 30.50 212.50 431.50 549.50 3418.00
1947 738.50 447.00 357.00 189.00 70.00 34.50 13.00 5.50 13.50 148.00 477.00 589.50 3082.50
1948 416.00 470.00 374.50 247.00 107.00 15.52 a 8.00 0.00 a 41.25 b 112.63 a 363.00 697.50 a 2852.40
1949 822.02 a 570.50 429.00 223.50 131.23 a 21.72 a 6.50 7.00 16.00 158.00 227.00 629.50 3241.97
1950 710.50 459.50 422.00 161.67 c 70.00 h 51.00 0.00 a 6.00 19.50 119.35 a 240.52 a 475.00 2665.03
1951 583.00 474.88 c 453.12 a 255.00 120.90 a 34.14 a 16.03 b 0.52 a 8.00 118.00 357.41 a 570.50 2991.50
1952 653.50 467.50 484.63 a 226.00 125.03 a 70.50 1.07 b 1.00 8.28 a 57.50 421.00 546.00 3062.01
1953 459.00 454.50 453.63 a 297.86 b 263.50 96.00 5.17 d 16.03 b 16.00 161.64 c 310.18 b 532.17 a 3065.68
1954 602.50 470.00 476.62 c 206.00 105.50 79.29 b 0.50 29.00 23.28 a 125.55 a 371.38 a 613.28 a 3102.90
1955 700.08 a 517.50 425.22 a 384.83 a 164.00 73.00 26.19 b 7.23 a 43.97 a 110.05 a 376.03 a 487.50 3315.60
1956 525.50 555.30 b 427.50 286.00 135.88 a 42.50 3.50 3.50 15.52 a 173.00 360.00 580.50 3108.70
1957 673.00 408.15 b 362.00 213.00 153.45 a 13.45 a 0.00 11.50 2.07 a 112.50 400.00 442.50 f 2349.12
1958 528.00 296.50 473.00 228.50 83.50 12.00 4.00 0.00 5.50 41.00 309.50 371.50 2353.00
1959 482.00 466.50 276.50 136.00 108.00 h 34.29 b 3.50 11.00 31.50 87.00 331.00 548.00 2407.29
1960 618.50 480.50 350.50 280.00 189.00 3.50 3.00 8.50 18.50 160.50 411.50 629.00 3153.00
1961 726.50 418.50 464.00 266.00 233.00 40.00 9.00 2.00 41.50 157.00 401.50 644.50 3403.50
1962 665.50 478.50 515.50 214.00 222.50 45.00 4.00 6.50 23.00 181.50 351.50 581.50 3289.00
1963 724.00 289.00 489.50 431.00 183.93 a 64.00 19.50 14.50 8.50 144.00 450.00 780.50 3598.43
1964 662.50 530.50 495.00 339.00 266.00 120.50 28.00 4.50 52.50 64.50 456.50 471.00 3490.50
1965 589.50 486.00 434.00 303.50 185.00 99.00 16.00 3.00 48.50 51.50 335.00 706.50 3257.50
1966 611.50 530.00 428.50 169.00 125.00 65.50 19.00 3.50 24.00 107.00 325.00 577.00 2985.00
1967 553.00 498.50 457.00 512.50 197.00 98.00 0.50 0.00 0.00 80.50 270.50 609.50 3277.00
1968 624.50 312.00 346.50 260.50 176.50 40.00 0.50 6.00 17.50 135.00 346.00 626.50 2891.50
1969 595.00 484.00 402.50 295.50 64.50 37.00 0.00 0.00 11.00 142.50 328.00 440.50 2800.50
1970 467.50 362.50 335.00 338.50 84.00 18.00 0.00 1.50 20.50 173.50 307.50 585.00 2693.50
1971 573.00 476.00 429.00 355.00 197.50 65.00 2.50 0.00 32.00 205.00 390.50 658.50 3384.00
1972 670.50 413.50 261.50 244.14 a 115.22 a 17.50 0.00 z 15.50 30.00 153.00 0.00 z 708.50 2629.35
1973 612.00 0.00 z 0.00 z 209.00 86.50 35.50 12.50 13.50 17.00 118.00 400.50 518.22 a 2022.72
1974 561.50 466.00 350.00 310.00 160.00 22.50 21.00 1.50 2.00 86.50 371.50 0.00 z 2352.50
1975 578.00 411.00 400.50 422.00 124.00 39.00 18.50 4.50 2.50 180.00 412.50 550.50 3143.00
1976 556.00 438.50 408.50 299.50 103.50 68.50 5.50 25.50 11.00 59.93 a 265.50 546.50 2788.43
1977 608.50 331.50 421.00 158.28 a 254.00 50.00 16.50 11.50 44.00 65.00 0.00 z 412.00 2372.28
1978 442.50 371.00 0.00 z 281.50 46.00 10.34 a 1.00 7.50 12.50 79.50 432.50 708.50 2392.84
1979 632.00 462.00 a 393.00 282.50 78.00 21.00 2.50 1.50 0.50 93.50 393.50 507.50 2867.50
1980 502.00 343.00 389.50 232.50 175.00 62.00 12.50 3.00 7.50 119.00 329.50 529.50 2705.00
1981 519.50 333.50 350.00 198.00 76.00 1.50 0.00 1.50 7.00 174.50 271.00 446.50 2379.00
1982 686.50 376.50 454.50 287.50 121.50 85.00 15.00 3.50 24.50 107.50 470.00 566.00 3198.00
1983 612.00 354.00 352.50 329.00 143.50 16.50 12.50 0.00 5.00 40.00 374.50 454.50 2694.00
1984 577.50 462.50 283.50 293.00 81.50 30.50 1.50 1.00 2.50 178.50 385.00 612.00 2909.00
1985 652.00 373.00 436.50 121.50 122.50 12.00 0.00 0.50 36.00 121.50 447.00 627.00 2949.50
1986 414.50 296.00 228.00 226.00 113.50 9.50 3.00 0.00 88.00 72.00 302.50 615.50 2368.50
1987 612.00 410.00 340.00 104.50 83.00 0.00 z 8.00 0.00 0.50 38.00 339.50 532.00 2467.50
1988 514.50 343.50 264.00 188.50 129.50 40.00 0.50 2.50 9.00 79.50 333.50 554.00 2459.00
1989 592.50 502.50 304.00 127.00 109.50 27.50 1.00 0.00 20.50 126.00 318.50 576.00 2705.00
1990 528.00 499.50 311.00 121.50 114.50 11.50 0.00 0.00 0.00 49.50 349.00 714.50 2699.00
1991 533.50 291.50 446.50 254.50 158.50 57.00 0.00 5.00 3.00 93.50 291.50 571.00 2705.50
1992 634.00 328.50 283.00 116.00 9.00 17.00 0.00 0.00 0.50 35.00 317.00 580.00 2320.00
1993 590.00 431.00 243.50 198.00 71.00 25.00 0.00 0.00 9.00 50.00 369.50 576.50 2563.50
1994 529.00 470.00 278.00 199.00 121.50 23.00 0.00 0.00 5.00 110.50 0.00 z 622.00 2358.00
1995 403.00 338.00 375.00 242.50 152.00 62.50 0.50 2.50 2.00 45.00 181.00 407.50 2211.50
1996 485.50 320.00 299.00 162.00 70.50 16.50 0.00 0.00 2.50 159.00 307.50 415.50 2238.00
1997 510.50 354.50 255.00 166.50 22.00 7.00 0.00 0.00 0.00 100.00 277.50 554.00 2247.00
1998 479.50 408.00 338.00 264.00 226.50 47.50 6.00 0.00 29.50 130.50 334.00 602.00 2865.50
1999 520.00 430.50 413.00 248.00 158.00 50.50 3.00 1.00 0.50 40.00 257.50 503.00 2625.00
2000 432.00 362.50 300.00 139.00 96.50 15.50 10.00 0.00 10.00 0.00 z 450.00 483.50 2299.00
2001 581.00 427.00 232.00 289.50 16.00 4.50 3.00 0.00 1.50 35.50 249.00 491.00 2330.00
2002 574.50 369.00 356.50 197.00 111.00 12.50 0.00 2.50 7.50 99.50 278.50 463.00 2471.50
2003 406.00 416.00 264.50 310.50 109.50 13.50 2.00 0.00 0.00 30.00 395.50 473.00 2420.50
2004 545.00 422.00 155.50 146.00 69.50 8.00 0.00 0.50 19.00 155.00 376.00 494.50 2391.00
2005 589.00 336.00 270.00 234.00 74.50 29.50 0.00 0.00 11.50 78.50 266.50 430.50 2320.00
2006 464.50 372.00 454.00 251.00 48.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1589.50
Period of Record Statistics
MEAN 573.01 423.07 370.73 246.93 126.37 39.47 5.88 4.14 16.91 108.06 346.88 551.44 2833.49
S.D. 89.56 70.60 85.97 77.86 60.65 27.87 7.37 5.73 15.88 48.85 64.56 83.29 373.70
SKEW 0.30 -0.14 -0.23 0.52 0.56 0.82 1.29 2.18 1.61 0.22 -0.09 0.30 -0.01
MAX 822.02 570.50 547.50 512.50 283.00 120.50 28.00 29.00 88.00 212.50 477.00 780.50 3598.43
MIN 403.00 289.00 155.50 104.50 9.00 1.50 0.00 0.00 0.00 30.00 181.00 371.50 2170.31
NO YRS 76 75 74 76 74 74 74 75 75 74 72 73 63