DAVIS 1 WSW, CALIFORNIA

Monthly Total Heating Degree Days

(042294)

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
1917 677.57 c 416.50 432.00 224.00 159.50 5.00 0.00 0.00 16.00 66.50 339.00 526.50 2862.57
1918 558.50 455.50 384.50 193.50 84.00 0.00 0.00 a 1.03 a 9.00 72.00 451.50 688.50 2898.03
1919 632.50 478.50 438.00 197.50 54.50 4.50 1.50 2.00 23.50 157.50 392.00 657.00 3039.00
1920 560.50 437.00 440.50 226.00 66.00 0.00 0.00 3.00 28.00 202.00 405.00 600.50 2968.50
1921 577.00 444.50 371.00 298.89 c 144.50 15.50 0.00 d 0.00 b 32.50 83.00 387.00 564.50 2918.39
1922 782.50 540.00 438.00 270.50 78.50 1.00 0.00 0.00 a 0.00 130.50 482.50 560.50 3284.00
1923 676.00 450.50 301.00 245.00 77.00 31.50 0.00 0.00 38.50 111.50 h 271.00 655.00 2745.50
1924 700.00 349.00 427.50 193.00 54.00 7.00 0.00 0.50 5.50 229.00 475.50 738.00 3179.00
1925 579.50 395.50 346.50 230.50 88.00 16.50 0.00 0.00 21.00 159.00 419.50 630.50 2886.50
1926 717.50 386.50 182.00 142.50 95.50 0.00 0.00 5.50 45.50 84.50 225.50 617.50 2502.50
1927 577.50 414.00 426.50 276.50 123.00 30.50 1.00 3.50 19.00 82.00 360.00 639.00 2952.50
1928 635.50 454.00 311.00 261.50 38.00 11.00 0.50 1.50 24.50 147.00 435.00 709.00 3028.50
1929 761.00 510.00 385.00 348.50 66.50 74.50 0.00 1.50 37.00 82.00 365.00 494.50 3125.50
1930 664.50 364.00 340.00 231.00 194.50 17.00 1.50 2.00 45.00 168.00 343.50 630.50 3001.50
1931 565.50 248.50 g 306.79 b 123.50 9.00 5.50 0.00 0.00 a 41.00 170.50 426.00 619.50 2267.29
1932 623.00 507.50 272.00 262.50 100.00 17.00 6.50 3.00 0.00 102.00 243.00 791.00 2927.50
1933 757.00 541.50 373.00 215.50 219.00 18.00 0.00 0.00 10.50 34.50 318.00 464.50 g 2487.00
1934 534.00 356.00 188.00 101.50 36.50 19.00 0.00 0.00 31.50 93.00 320.00 543.50 2223.00
1935 620.00 455.00 496.50 241.00 102.50 4.00 1.00 0.00 4.50 182.50 473.50 599.50 3180.00
1936 512.50 457.50 298.00 191.50 82.15 a 32.50 4.13 a 4.50 0.00 z 73.50 356.50 636.00 2648.78
1937 843.00 503.50 333.50 243.50 64.50 20.00 0.00 0.00 10.00 62.50 329.50 558.00 2968.00
1938 649.50 479.00 456.00 258.50 64.00 6.00 3.00 0.50 0.50 155.00 431.00 582.50 3085.50
1939 634.47 a 514.00 385.50 98.00 84.50 29.50 0.00 0.50 20.50 109.50 348.10 a 540.00 2764.57
1940 510.50 350.00 280.50 170.50 50.50 0.00 0.00 0.00 4.50 100.50 384.50 433.00 2284.50
1941 472.00 356.00 267.00 225.50 58.00 9.00 0.00 0.00 7.50 143.50 299.50 502.50 2340.50
1942 580.00 424.50 381.50 243.50 132.00 1.03 a 0.00 1.00 6.50 75.50 369.50 575.50 2790.53
1943 571.00 408.00 349.00 189.50 44.00 27.50 0.00 0.00 0.00 137.50 355.50 532.00 2614.00
1944 601.00 494.00 366.66 b 304.50 71.00 51.00 0.00 0.00 6.00 47.50 425.00 565.50 2932.16
1945 650.50 420.50 490.50 182.00 116.50 8.50 1.00 2.50 16.00 72.50 399.50 576.50 2936.50
1946 623.62 a 560.00 396.00 218.00 93.00 17.00 0.00 5.50 1.50 158.50 417.00 632.50 3122.62
1947 733.50 432.00 301.50 149.50 33.00 16.00 0.00 2.00 10.00 135.50 435.50 635.50 2884.00
1948 521.00 532.50 480.50 346.00 152.50 18.50 6.50 1.00 36.00 94.00 378.50 683.03 a 3250.03
1949 820.00 532.00 396.00 129.50 64.00 15.50 0.50 3.50 6.50 152.00 306.50 670.00 3096.00
1950 719.50 422.07 a 455.70 a 176.38 a 108.50 30.50 0.00 0.00 d 11.50 99.00 238.00 480.50 2741.65
1951 624.00 442.00 345.00 214.00 96.00 9.50 4.50 1.00 2.50 89.00 322.00 592.50 2742.00
1952 661.50 451.50 448.50 175.00 79.00 51.50 0.00 0.00 9.50 53.50 384.50 551.00 2865.50
1953 433.50 391.00 368.00 244.66 a 168.00 43.50 0.00 11.00 1.00 113.50 321.50 493.50 2589.16
1954 555.00 451.00 447.50 144.50 35.00 28.50 0.00 2.00 8.50 94.00 399.50 661.00 2826.50
1955 695.00 465.00 345.50 329.50 82.50 20.50 4.00 0.00 16.00 58.00 379.50 471.00 2866.50
1956 533.50 523.00 342.00 208.00 70.50 11.00 7.00 0.00 0.00 a 131.00 333.50 628.00 2787.50
1957 658.50 371.50 330.00 179.50 97.00 0.00 0.00 2.50 6.00 127.00 363.50 604.00 2739.50
1958 608.50 316.50 450.00 184.50 36.00 7.50 1.00 0.00 1.50 26.50 271.50 436.00 2339.50
1959 494.50 442.00 233.00 65.00 68.50 0.00 0.00 7.50 15.00 28.50 297.50 545.00 2196.50
1960 588.00 406.50 270.50 192.50 85.00 0.00 1.00 0.50 13.50 113.50 411.50 624.50 2707.00
1961 705.00 388.50 394.00 214.50 172.50 9.00 3.50 0.00 27.50 148.50 390.00 636.50 3089.50
1962 706.00 478.00 454.00 149.00 131.50 18.00 0.00 2.50 17.00 134.50 313.00 571.50 2975.00
1963 739.50 265.50 438.50 380.50 137.50 10.50 3.50 7.00 6.50 120.00 408.50 748.50 3266.00
1964 639.50 452.50 418.50 258.00 166.00 50.50 4.00 0.00 38.50 70.00 445.00 476.50 3019.00
1965 614.50 463.50 385.00 258.00 82.00 36.00 0.50 0.50 41.00 50.50 325.00 741.50 2998.00
1966 631.00 508.00 363.50 115.50 47.00 26.50 1.50 4.00 12.50 96.50 338.00 599.50 2743.50
1967 614.50 466.00 447.00 503.00 117.00 47.50 0.00 0.00 0.00 58.00 274.50 632.00 3159.50
1968 688.50 322.50 322.00 163.50 98.00 2.50 0.00 8.50 2.00 119.00 387.50 664.00 2778.00
1969 667.50 515.50 395.50 221.00 40.00 6.50 0.00 0.00 7.00 140.50 339.50 509.50 2842.50
1970 470.00 361.00 321.50 288.00 70.00 15.00 0.00 0.50 13.50 159.50 305.00 593.50 2597.50
1971 603.50 456.00 408.50 288.50 128.50 27.00 0.00 0.00 33.00 197.50 382.50 692.00 3217.00
1972 746.50 420.00 215.50 209.50 82.00 19.00 0.50 1.00 14.00 134.50 448.50 744.00 3035.00
1973 631.00 385.50 442.00 154.50 45.50 8.00 0.00 1.00 11.50 115.50 394.50 555.00 2744.00
1974 582.50 476.00 358.50 260.50 81.00 1.00 9.50 0.00 1.00 60.00 412.00 606.00 2848.00
1975 653.50 455.50 425.50 361.50 85.00 14.00 10.50 2.50 0.00 174.50 452.50 573.00 3208.00
1976 575.00 419.00 378.00 280.00 17.50 21.00 0.00 9.00 3.00 88.00 332.50 654.00 2777.00
1977 735.00 409.50 465.00 143.50 223.50 20.00 2.50 0.00 32.00 72.50 333.00 467.00 2903.50
1978 446.50 426.50 257.00 272.50 59.50 0.50 0.00 0.00 12.50 49.50 467.50 739.00 2731.00
1979 643.00 477.50 364.00 253.00 65.50 3.50 0.00 1.00 4.00 113.50 413.00 569.00 2907.00
1980 560.50 384.00 396.00 221.00 118.50 30.50 4.00 2.50 13.00 147.50 339.50 588.50 2805.50
1981 572.00 385.00 406.00 213.50 48.50 1.50 0.00 0.50 7.50 172.50 300.56 c 520.00 2627.56
1982 748.50 443.00 443.50 289.50 63.00 28.50 1.00 0.00 21.00 108.50 515.00 614.00 3275.50
1983 667.50 413.00 378.00 320.50 99.00 1.00 n 3.50 0.00 4.50 32.50 386.50 538.00 2843.00
1984 607.00 494.50 246.50 231.00 36.50 15.50 0.50 0.00 0.00 177.00 456.50 670.50 2935.50
1985 751.50 421.50 471.00 106.50 92.00 17.50 0.50 3.50 34.00 132.00 482.50 744.50 3257.00
1986 480.00 334.00 253.50 212.50 82.00 1.50 0.00 0.00 80.50 66.50 283.00 639.50 2433.00
1987 655.00 421.50 388.00 100.00 53.00 1.00 8.50 3.50 8.00 54.00 405.50 633.00 2731.00
1988 624.50 403.00 305.50 168.50 120.50 34.50 0.00 4.50 4.00 65.00 368.00 600.50 2698.50
1989 668.00 546.00 348.00 134.50 121.00 6.50 0.00 2.50 33.50 130.50 363.00 687.88 b 3041.38
1990 626.50 534.50 331.50 99.00 77.00 12.00 0.00 0.00 2.50 46.00 384.00 751.50 2864.50
1991 589.00 316.00 483.50 230.00 117.00 11.50 0.00 4.50 2.00 92.00 293.50 562.50 2701.50
1992 673.00 331.00 272.00 109.50 5.00 12.00 0.00 0.00 2.00 40.50 332.00 672.50 2449.50
1993 648.00 475.50 236.00 204.50 67.00 29.00 0.00 0.00 9.50 48.50 381.00 658.50 2757.50
1994 593.50 484.50 300.00 179.00 78.00 5.50 0.00 0.00 1.50 119.00 552.00 696.00 3009.00
1995 507.50 374.00 403.00 224.50 105.50 27.00 0.00 1.00 0.50 50.50 206.00 472.50 2372.00
1996 552.50 372.00 305.50 174.50 65.50 11.00 0.00 0.00 3.00 129.50 329.00 506.00 2448.50
1997 554.00 374.00 240.50 125.00 20.00 1.50 0.50 0.00 0.00 99.00 289.00 595.00 2298.50
1998 529.50 455.00 347.50 267.00 198.00 19.00 0.00 0.00 24.50 110.50 0.00 z 688.50 2639.50
1999 648.33 b 490.00 b 435.50 229.14 a 54.25 e 30.52 a 0.00 a 0.00 0.00 a 34.21 b 293.00 536.41 c 2751.35
2000 501.34 b 412.21 a 300.59 c 110.69 a 68.50 3.50 0.00 1.00 8.50 119.50 471.00 534.00 2530.84
2001 591.00 440.00 225.50 248.50 3.00 2.00 2.00 0.00 0.00 30.50 247.50 520.00 2310.00
2002 608.00 386.50 355.00 172.00 78.00 1.00 0.00 0.50 8.50 112.50 290.00 483.50 2495.50
2003 452.50 419.50 256.50 301.50 84.00 2.00 0.00 0.00 0.00 22.00 429.50 530.50 2498.00
2004 583.00 423.50 164.50 131.50 20.50 1.50 0.00 0.00 0.00 z 135.00 376.00 554.50 2390.00
2005 0.00 z 344.00 251.00 212.00 22.50 18.00 0.00 0.00 z 14.00 62.00 273.00 486.50 1683.00
2006 484.50 390.50 469.28 b 246.21 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1590.48
Period of Record Statistics
MEAN 618.68 432.76 359.38 215.37 85.09 15.82 1.14 1.48 13.82 103.82 367.04 599.22 2821.95
S.D. 85.72 61.14 79.24 72.96 45.98 14.61 2.25 2.30 14.68 46.54 68.96 80.88 272.17
SKEW 0.12 -0.12 -0.38 0.68 0.86 1.31 2.41 2.05 1.63 0.25 0.06 0.14 -0.41
MAX 843.00 560.00 496.50 503.00 223.50 74.50 10.50 11.00 80.50 229.00 552.00 791.00 3284.00
MIN 433.50 265.50 164.50 65.00 3.00 0.00 0.00 0.00 0.00 22.00 206.00 433.00 2196.50
NO YRS 89 89 90 90 89 88 89 88 87 88 88 88 81