WEED FIRE DEPT, CALIFORNIA

Monthly Total Heating Degree Days

(049499)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 198907
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
1957 0.00 z 0.00 z 0.00 z 243.00 q 393.00 148.00 105.50 168.50 159.00 636.00 876.21 a 926.50 3412.71
1958 953.00 685.50 931.50 663.50 267.00 225.00 44.50 21.00 95.50 n 426.50 819.00 774.50 5811.00
1959 922.50 874.50 758.00 486.00 495.50 181.00 62.52 a 37.50 i 313.45 a 442.50 754.00 1027.00 6316.96
1960 1037.00 870.50 686.00 600.00 500.50 96.00 16.00 128.00 166.00 438.50 795.50 960.00 6294.00
1961 914.00 754.00 822.50 600.00 495.00 129.50 53.50 42.50 339.50 492.50 847.50 1050.00 6540.50
1962 1160.00 826.50 868.00 481.00 502.50 224.50 105.50 115.50 185.00 515.00 717.00 890.50 6591.00
1963 1115.00 220.00 p 822.00 760.50 348.50 288.50 168.00 120.50 172.76 a 505.50 772.50 905.50 5979.26
1964 1044.50 885.50 866.50 644.00 533.00 276.50 89.50 122.00 307.50 406.00 833.00 929.50 6937.50
1965 950.50 780.00 758.00 606.00 470.00 243.00 76.00 90.00 248.50 345.50 682.50 1007.00 6257.00
1966 1001.50 868.00 731.08 a 464.50 279.00 221.00 80.00 43.50 173.28 a 431.50 705.52 a 892.00 5890.88
1967 942.00 736.50 821.00 798.00 369.00 191.38 a 5.50 8.00 71.50 491.00 629.50 1136.00 6199.38
1968 1013.00 653.50 674.50 583.00 380.00 154.50 19.50 123.00 171.50 477.50 750.00 1036.43 a 6036.43
1969 1064.50 857.00 783.00 604.29 b 251.50 133.50 47.00 74.00 145.86 a 608.00 744.50 879.50 6192.65
1970 878.50 718.50 740.50 728.00 360.50 164.50 14.50 12.00 301.00 537.50 679.00 1055.50 6190.00
1971 985.50 815.50 849.50 647.00 439.00 258.00 71.50 27.00 244.50 610.50 794.00 1102.50 6844.50
1972 1109.50 780.00 651.50 644.50 365.00 142.00 22.00 73.00 298.00 525.00 817.00 1139.00 6566.50
1973 1034.00 732.50 822.50 546.50 280.00 152.00 48.50 0.00 z 197.50 506.00 760.50 825.50 5905.50
1974 1106.70 a 837.50 761.50 652.50 413.00 99.50 82.00 56.50 82.50 470.00 753.50 962.50 6277.70
1975 1076.50 846.50 865.00 778.00 387.00 185.00 67.00 117.00 108.00 529.00 851.50 952.00 6762.50
1976 1018.00 841.50 850.00 699.50 362.00 263.50 53.50 186.50 171.00 473.50 699.00 1000.00 6618.00
1977 1223.50 736.00 885.50 527.00 623.00 94.00 56.50 64.00 253.00 531.50 763.00 873.50 6630.50
1978 822.50 704.00 609.00 645.00 427.50 184.14 a 59.00 127.00 353.00 408.50 899.50 1187.00 6426.14
1979 1101.50 826.00 729.00 634.00 367.50 173.50 64.50 105.00 132.00 400.50 839.00 874.72 a 6247.22
1980 947.50 699.00 831.50 535.00 445.50 312.50 48.50 77.50 199.00 428.50 739.50 911.50 6175.50
1981 860.00 757.00 767.00 545.00 396.50 138.50 59.50 35.00 177.00 582.00 668.00 836.00 5821.50
1982 1103.00 809.50 801.50 651.50 375.00 195.50 94.50 59.50 310.00 554.50 860.00 1029.00 6843.50
1983 903.50 726.00 756.00 717.50 390.50 249.50 190.00 73.00 256.50 410.50 744.50 909.00 6326.50
1984 940.00 784.50 668.00 634.00 380.50 219.50 17.50 35.50 223.50 616.00 843.00 1036.50 6398.50
1985 995.00 802.50 815.00 419.00 369.50 116.50 8.00 99.00 317.00 544.50 936.50 955.50 6378.00
1986 749.50 688.00 563.50 540.50 392.50 89.00 67.00 14.00 368.50 424.00 724.00 925.00 5545.50
1987 974.00 730.00 711.50 364.00 258.00 101.00 103.50 16.00 144.50 204.00 636.50 946.00 5189.00
1988 961.00 664.00 630.00 422.50 415.00 206.00 23.50 16.00 164.00 193.00 660.50 912.00 5267.50
1989 1054.50 863.00 677.50 0.00 z 378.50 0.00 z 17.00 y 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2973.50
Period of Record Statistics
MEAN 998.80 779.13 765.86 600.70 397.29 183.02 63.25 75.00 217.88 473.91 768.60 963.97 6275.85
S.D. 101.46 69.02 88.48 106.68 82.27 61.87 41.89 48.66 81.58 101.76 78.22 96.50 440.38
SKEW -0.16 -0.12 -0.36 -0.25 0.41 0.24 1.14 0.40 0.18 -0.95 0.13 0.43 -0.89
MAX 1223.50 885.50 931.50 798.00 623.00 312.50 190.00 186.50 368.50 636.00 936.50 1187.00 6937.50
MIN 749.50 653.50 563.50 364.00 251.50 89.00 5.50 8.00 71.50 193.00 629.50 774.50 5189.00
NO YRS 32 31 32 31 33 32 32 30 31 32 32 32 27