OROVILLE, WASHINGTON

Monthly Total Heating Degree Days

(456187)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197002
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
1960 0.00 z 0.00 z 0.00 z 0.00 z 312.21 c 51.50 0.00 58.26 b 151.50 444.00 848.50 1146.50 3012.47
1961 1032.00 748.50 681.50 466.00 216.48 a 17.00 3.00 1.00 229.50 564.00 983.79 a 1136.00 6078.78
1962 1236.00 852.50 840.50 379.50 245.50 90.00 27.00 15.50 106.50 464.50 705.50 931.50 5894.50
1963 1248.00 796.50 673.50 469.50 212.50 57.50 11.76 b 9.00 75.50 416.50 787.50 1116.00 5873.76
1964 1085.50 1010.34 a 788.00 472.00 262.50 33.62 a 14.00 53.50 239.00 524.50 791.50 1243.50 6517.96
1965 1108.00 893.50 849.00 395.50 258.50 32.50 4.00 34.50 232.24 a 419.50 759.50 1085.50 6072.24
1966 1209.00 864.50 738.00 456.00 165.50 81.50 15.50 27.50 42.00 504.00 748.00 936.00 5787.50
1967 955.50 730.00 747.00 531.00 247.00 15.50 5.50 0.00 a 60.50 463.00 792.50 1108.50 5656.00
1968 1118.50 803.50 626.50 499.50 239.50 59.50 4.77 e 0.00 z 0.00 z 0.00 z 0.00 z 815.00 k 3351.77
1969 1581.52 a 1059.50 845.35 e 0.00 z 0.00 z 0.00 z 0.00 z 7.50 145.50 0.00 z 0.00 z 0.00 z 3639.36
1970 0.00 z 829.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 829.50
Period of Record Statistics
MEAN 1174.89 858.83 754.37 458.62 239.97 48.74 9.50 22.97 142.47 475.00 802.10 1087.94 5982.96
S.D. 180.20 105.97 82.39 50.02 40.32 26.41 8.43 21.88 77.16 52.00 84.22 106.04 279.35
SKEW 1.21 0.76 -0.17 -0.36 -0.10 0.22 0.93 0.56 0.11 0.49 1.27 -0.41 0.91
MAX 1581.52 1059.50 849.00 531.00 312.21 90.00 27.00 58.26 239.00 564.00 983.79 1243.50 6517.96
MIN 955.50 730.00 626.50 379.50 165.50 15.50 0.00 0.00 42.00 416.50 705.50 931.50 5656.00
NO YRS 9 10 9 8 9 9 9 9 9 8 8 8 7