PALOMAR MTN OBSVTRY, CALIFORNIA

Monthly Total Heating Degree Days

(046657)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1901 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 0.00 z 0.00 z 0.00 z 0.00
1902 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 0.00 z 0.00 z 0.00 z 0.00
1903 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 0.00 z 0.00 z 0.00 z 0.00
1904 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 0.00 z 0.00 z 0.00 z 0.00
1905 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 0.00 z 0.00 z 0.00 z 0.00
1906 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 0.00 z 0.00 z 0.00 z 0.00
1907 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 0.00 z 0.00 z 0.00 z 0.00
1908 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 0.00 z 0.00 z 0.00 z 0.00
1909 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 0.00 z 0.00 z 0.00 z 0.00
1910 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 0.00 z 0.00 z 0.00 z 0.00
1911 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 0.00 z 0.00 z 0.00 z 0.00
1912 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 0.00 z 0.00 z 0.00 z 0.00
1913 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 0.00 z 0.00 z 0.00 z 0.00
1914 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 0.00 z 0.00 z 0.00 z 0.00
1915 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 0.00 z 0.00 z 0.00 z 0.00
1916 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 0.00 z 0.00 z 0.00 z 0.00
1917 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 0.00 z 0.00 z 0.00 z 0.00
1918 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 0.00 z 0.00 z 0.00 z 0.00
1919 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 0.00 z 0.00 z 0.00 z 0.00
1920 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 0.00 z 0.00 z 0.00 z 0.00
1921 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 0.00 z 0.00 z 0.00 z 0.00
1922 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 0.00 z 0.00 z 0.00 z 0.00
1923 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 0.00 z 0.00 z 0.00 z 0.00
1924 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 0.00 z 0.00 z 0.00 z 0.00
1925 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 0.00 z 0.00 z 0.00 z 0.00
1926 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 0.00 z 0.00 z 0.00 z 0.00
1927 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 0.00 z 0.00 z 0.00 z 0.00
1928 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 0.00 z 0.00 z 0.00 z 0.00
1929 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 0.00 z 0.00 z 0.00 z 0.00
1930 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 0.00 z 0.00 z 0.00 z 0.00
1931 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 0.00 z 0.00 z 0.00 z 0.00
1932 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 0.00 z 0.00 z 0.00 z 0.00
1933 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 0.00 z 0.00 z 0.00 z 0.00
1934 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 0.00 z 0.00 z 0.00 z 0.00
1935 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 0.00 z 0.00 z 0.00 z 0.00
1936 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 0.00 z 0.00 z 0.00 z 0.00
1937 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 0.00 z 0.00 z 0.00 z 0.00
1938 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 12.92 a 5.50 0.00 283.00 493.00 562.50 1356.92
1939 649.00 818.50 528.00 270.50 210.50 76.00 19.00 0.00 98.50 234.00 336.00 400.00 3640.00
1940 618.00 640.00 474.00 425.50 129.50 29.50 10.50 0.00 55.00 193.00 0.00 z 525.50 3100.50
1941 0.00 z 0.00 z 613.00 0.00 z 236.00 138.00 16.00 13.00 111.00 409.00 362.00 694.50 2592.50
1942 656.34 b 668.00 579.00 564.50 241.50 h 0.00 z 0.00 z 27.50 f 29.50 222.50 0.00 z 528.00 3247.84
1943 647.00 546.00 a 552.50 339.50 151.50 150.00 10.50 0.00 8.00 238.50 382.00 775.00 3800.50
1944 737.00 816.50 657.00 537.00 249.00 241.50 30.00 0.00 26.00 158.50 648.00 618.00 4718.50
1945 680.45 a 620.00 818.00 411.50 278.00 135.50 0.00 2.00 65.50 175.00 446.50 647.50 4279.95
1946 634.50 619.50 635.00 304.50 299.67 a 16.50 0.00 0.00 16.50 363.50 587.00 528.00 4004.67
1947 689.00 480.00 571.00 394.50 187.50 115.50 0.00 19.00 9.00 224.00 561.50 740.00 3991.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5.50 0.00 a 63.50 232.50 440.00 754.50 1496.00
1949 1130.50 808.50 738.32 a 326.50 353.50 44.50 0.00 24.50 11.00 282.00 197.00 677.50 4593.82
1950 817.00 461.00 511.50 311.50 286.50 110.00 5.50 0.00 76.50 103.50 262.80 e 356.50 3302.30
1951 716.00 601.00 588.00 476.50 286.00 111.00 0.00 26.50 7.50 208.00 475.50 737.00 4233.00
1952 805.00 659.00 895.00 415.80 e 106.78 d 145.50 2.50 0.00 32.00 17.50 609.00 749.50 4437.58
1953 439.00 579.00 605.00 487.00 480.00 150.00 0.00 26.50 19.50 210.50 368.50 545.00 3910.00
1954 611.50 394.00 714.50 262.50 146.00 116.50 3.00 11.50 1.50 134.50 310.50 639.00 3345.00
1955 898.00 686.00 554.50 486.50 343.50 128.50 22.50 0.00 71.00 76.00 405.50 562.50 4234.50
1956 548.00 752.50 435.50 525.00 279.50 51.00 22.00 7.50 2.00 287.50 329.00 525.50 3765.00
1957 842.00 436.00 586.50 481.00 436.50 58.50 0.00 25.50 34.00 370.00 563.00 493.00 4326.00
1958 616.00 531.00 846.50 461.25 b 177.98 b 124.00 6.00 0.00 f 10.71 b 142.60 a 350.00 f 113.00 q 2916.05
1959 339.50 g 719.19 a 298.50 h 195.50 f 357.50 13.45 a 0.00 b 29.97 a 97.00 111.94 d 307.00 431.00 h 1636.04
1960 810.43 c 672.22 d 333.25 c 325.50 243.57 c 10.00 h 0.00 i 8.00 h 8.00 248.52 a 494.00 622.50 3757.99
1961 541.98 a 491.50 395.00 j 369.00 359.94 d 46.50 m 0.00 c 2.00 g 20.00 j 185.50 f 517.50 680.50 2960.43
1962 667.00 699.50 778.00 196.50 378.50 98.50 5.00 0.00 16.50 172.50 315.50 494.50 3822.00
1963 712.00 376.50 651.50 603.00 223.50 189.00 3.00 2.00 52.00 195.50 479.44 c 523.50 4010.94
1964 698.02 a 613.00 726.36 b 561.43 b 361.50 112.22 c 0.00 z 5.00 22.50 b 93.00 585.58 d 586.42 a 4365.02
1965 463.50 f 529.50 663.92 a 502.78 c 340.45 c 197.31 d 0.00 z 1.55 a 137.00 74.18 c 459.50 710.70 d 3616.88
1966 733.15 a 700.00 d 484.24 b 270.00 b 0.00 z 58.93 b 0.00 b 4.98 c 37.50 160.17 a 427.22 c 613.80 a 3489.99
1967 570.00 440.46 b 554.50 762.50 299.00 186.21 a 0.00 b 0.00 a 22.50 b 51.50 335.00 798.25 a 4019.92
1968 636.53 a 457.31 c 547.15 a 431.90 a 262.00 92.14 b 10.33 a 52.81 d 35.00 150.87 a 424.50 704.50 3805.04
1969 612.25 a 763.00 658.00 410.50 184.00 122.59 a 6.89 d 0.00 20.50 299.00 462.50 567.50 4106.73
1970 650.50 515.50 611.50 558.21 b 150.50 81.00 0.00 a 0.00 16.00 256.00 376.00 732.63 a 3947.85
1971 596.50 540.50 470.50 497.00 386.50 0.00 z 0.00 0.00 61.50 384.50 532.00 945.50 4414.50
1972 644.50 493.50 192.31 d 324.00 206.50 63.00 0.00 d 3.50 l 73.00 k 459.46 c 624.50 801.50 3809.28
1973 834.00 687.00 860.00 469.00 173.00 62.50 9.00 18.60 a 23.08 d 220.00 571.50 603.50 4531.18
1974 834.50 626.00 587.50 472.00 256.00 13.00 10.00 0.00 0.00 250.50 488.00 772.00 4309.50
1975 595.00 712.00 737.00 758.00 255.50 75.00 1.00 15.50 6.00 303.50 477.50 622.50 4558.50
1976 608.00 656.50 669.00 588.50 214.00 86.50 6.41 b 60.50 143.50 278.00 416.50 623.88 c 4351.29
1977 801.50 487.00 822.00 386.50 575.50 26.00 l 0.00 7.50 75.00 151.90 a 335.69 a 484.50 4127.09
1978 711.00 684.83 d 610.00 585.00 218.00 11.00 0.00 z 0.00 109.14 a 134.50 586.00 818.00 4467.47
1979 948.71 b 707.50 717.50 435.50 235.50 55.50 15.00 24.28 a 25.00 232.50 606.96 b 570.00 4573.96
1980 727.50 583.00 732.12 a 440.50 480.50 91.03 a 0.00 z 0.00 t 0.00 z 0.00 z 357.50 492.38 a 3904.53
1981 607.60 a 465.04 e 659.55 b 314.00 196.73 e 4.00 0.00 0.00 0.00 330.50 379.50 472.00 3428.93
1982 723.50 536.50 617.00 489.00 225.50 121.50 22.00 0.00 51.00 277.00 544.50 656.00 4263.50
1983 680.50 617.00 583.50 560.00 292.00 41.00 5.00 28.50 35.50 250.00 520.50 621.55 a 4235.05
1984 608.00 585.50 479.00 404.00 75.00 33.50 0.00 0.00 14.00 367.50 574.00 867.00 4007.50
1985 714.50 595.00 654.00 201.00 255.50 60.50 0.50 0.00 210.50 307.00 570.50 618.00 4187.00
1986 501.00 0.00 z 507.00 403.50 221.50 13.50 12.00 0.00 232.00 323.50 429.00 669.00 3312.00
1987 767.50 673.00 720.50 238.50 250.00 15.50 63.50 2.00 26.00 215.00 596.00 873.00 4440.50
1988 723.00 551.50 485.50 475.00 316.50 104.00 2.00 0.00 57.50 57.50 517.50 768.00 4058.00
1989 842.00 670.50 463.50 219.00 270.00 42.00 0.00 9.00 49.00 251.50 367.00 592.50 3776.00
1990 0.00 z 748.50 564.50 439.00 373.50 104.00 0.00 13.50 68.50 98.50 491.50 853.00 3754.50
1991 702.00 411.50 852.00 510.50 365.50 136.50 1.00 0.50 41.00 210.00 424.00 748.00 4402.50
1992 710.00 639.00 727.00 295.00 135.50 87.50 0.00 z 10.00 13.00 167.00 535.00 867.50 4186.50
1993 780.50 761.00 495.00 335.50 199.50 108.00 6.50 11.50 27.50 236.50 533.00 684.50 4179.00
1994 569.50 738.50 552.00 429.00 283.50 21.00 0.00 a 0.00 6.00 317.00 755.50 736.50 4408.50
1995 829.50 451.50 623.50 533.50 478.00 187.00 2.00 0.00 24.00 103.50 290.50 602.00 4125.00
1996 625.50 607.50 582.50 341.50 188.00 48.50 0.00 0.00 43.50 289.00 495.52 a 621.50 3843.02
1997 751.50 623.00 316.50 406.00 48.00 80.00 0.00 0.00 23.50 287.00 476.50 778.74 b 3790.74
1998 682.50 790.50 660.00 605.50 493.42 a 180.50 0.00 0.00 131.50 287.27 a 490.50 750.00 5071.68
1999 592.00 584.50 637.00 637.00 246.00 126.00 0.00 7.50 22.50 71.50 315.52 a 605.03 b 3844.55
2000 602.00 673.00 592.10 a 286.55 a 121.00 24.50 2.67 b 0.52 a 20.69 a 169.95 c 562.22 c 418.00 f 3055.20
2001 828.22 a 785.00 527.00 a 610.38 d 51.50 24.31 a 0.00 b 0.00 0.00 b 69.23 a 489.44 c 758.39 c 4143.48
2002 730.00 478.50 604.00 356.50 173.50 2.00 0.00 0.00 55.00 272.05 b 446.90 a 798.00 3916.45
2003 390.50 682.00 573.50 621.50 273.63 e 23.50 0.00 c 0.00 2.00 1.00 j 608.50 506.00 g 3175.13
2004 691.00 0.00 z 259.00 349.50 146.50 14.50 2.50 2.50 53.50 338.50 638.50 672.59 c 3168.59
2005 728.00 717.00 580.65 e 0.00 z 192.00 81.50 0.00 0.00 33.00 j 199.50 258.50 g 520.00 3018.65
2006 616.00 462.00 0.00 z 292.00 m 90.00 j 9.50 j 2.50 k 3.50 i 13.00 n 146.50 n 262.00 g 342.00 m 1078.00
2007 450.00 k 424.50 i 289.50 h 313.00 88.00 11.50 0.00 f 0.00 f 107.50 108.50 r 31.50 z 160.00 y 520.00
2008 822.00 398.50 i 459.50 313.00 238.50 g 22.50 0.00 0.00 4.50 104.00 318.75 b 555.00 f 2044.25
2009 546.12 a 678.70 e 548.46 e 439.50 47.03 b 185.36 b 0.00 z 5.50 12.00 265.57 a 378.00 718.50 3824.73
2010 625.00 644.52 a 582.50 514.00 320.00 27.00 0.00 6.50 f 14.40 e 302.00 436.00 f 545.00 3574.42
2011 567.50 702.00 552.50 424.50 328.94 d 103.27 d 13.50 0.00 7.00 179.00 539.48 a 752.86 c 4170.55
2012 474.30 a 614.44 e 577.52 d 375.00 a 133.30 a 17.50 2.50 0.00 2.00 164.00 370.50 720.50 3451.56
2013 757.50 667.50 409.50 21.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 35.50 z 1834.50
Period of Record Statistics
MEAN 687.77 614.87 596.50 432.87 254.91 83.62 5.67 7.20 43.01 218.63 464.93 657.31 4094.83
S.D. 120.59 111.63 133.89 123.86 112.23 57.79 10.07 12.42 47.13 94.95 110.55 121.35 365.90
SKEW 0.56 -0.22 -0.28 0.34 0.47 0.51 3.41 2.34 1.96 0.06 -0.02 -0.03 0.00
MAX 1130.50 818.50 895.00 762.50 575.50 241.50 63.50 60.50 232.00 459.46 755.50 945.50 5071.68
MIN 390.50 376.50 192.31 196.50 47.03 2.00 0.00 0.00 0.00 17.50 197.00 356.50 3302.30
NO YRS 69 69 70 69 69 67 65 66 70 70 68 68 46