SOUTH OLYMPIC TREE F, WASHINGTON

Monthly Total Heating Degree Days

(457871)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195608
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
1945 740.50 687.00 771.00 618.50 328.00 260.50 119.00 140.00 276.00 413.50 721.00 796.00 5871.00
1946 813.00 709.50 716.10 a 577.50 292.00 289.00 160.00 145.00 269.00 538.50 743.00 814.00 6066.60
1947 957.50 601.50 552.00 447.50 235.00 223.50 138.00 153.00 233.50 452.50 673.00 713.50 5380.50
1948 788.50 823.50 754.00 660.50 462.50 155.69 a 175.00 207.00 264.50 434.00 740.50 965.50 6431.19
1949 1115.00 839.00 675.00 512.50 296.50 259.50 169.50 178.00 176.00 545.50 457.00 871.00 6094.50
1950 1235.00 780.50 772.42 a 594.50 465.00 225.50 165.50 89.00 229.50 478.00 674.50 641.00 6350.42
1951 867.50 679.00 777.50 406.00 327.50 146.50 114.00 145.50 189.50 471.50 682.50 934.50 5741.50
1952 952.50 770.00 738.00 493.50 348.00 268.00 103.00 142.00 183.50 308.00 698.50 778.50 5783.50
1953 695.50 693.50 685.00 574.00 371.50 275.00 97.00 106.50 172.00 354.00 574.50 727.50 5326.00
1954 936.50 688.00 717.50 593.79 a 365.00 331.50 198.00 192.00 213.50 429.00 511.50 760.00 5936.29
1955 835.50 757.50 826.50 651.50 488.50 260.00 205.00 138.50 246.50 456.00 837.00 825.50 6528.00
1956 840.00 871.50 781.00 454.00 263.50 265.34 a 100.00 87.00 0.00 z 0.00 z 0.00 z 0.00 z 3662.34
Period of Record Statistics
MEAN 898.08 741.71 730.50 548.65 353.58 246.67 145.33 143.62 223.05 443.68 664.82 802.45 5955.41
S.D. 154.30 78.85 70.95 83.92 81.76 52.59 38.53 37.22 38.65 70.15 110.05 95.60 393.88
SKEW 0.89 0.05 -1.25 -0.31 0.40 -0.68 0.13 0.02 -0.01 -0.39 -0.56 0.19 -0.16
MAX 1235.00 871.50 826.50 660.50 488.50 331.50 205.00 207.00 276.00 545.50 837.00 965.50 6528.00
MIN 695.50 601.50 552.00 406.00 235.00 146.50 97.00 87.00 172.00 308.00 457.00 641.00 5326.00
NO YRS 12 12 12 12 12 12 12 12 11 11 11 11 11