CLARKSTON HEIGHTS, WASHINGTON

Monthly Total Heating Degree Days

(451474)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195912
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
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 639.50 846.50 1486.00
1938 881.50 747.50 639.50 397.00 225.50 49.00 16.00 8.50 35.00 396.50 845.00 947.50 5188.50
1939 835.00 847.00 639.00 354.00 164.50 117.50 1.00 2.50 94.50 445.00 727.50 774.00 5001.50
1940 961.50 693.00 566.00 384.50 153.50 27.50 2.50 0.00 82.50 359.50 876.00 928.50 5035.00
1941 908.50 679.00 537.50 361.50 213.50 72.50 0.00 15.00 226.50 484.50 698.00 899.00 5095.50
1942 1255.00 798.50 660.50 355.50 299.50 150.50 0.00 25.00 88.50 396.00 765.00 a 891.50 5685.50
1943 1178.00 731.00 768.00 355.00 344.50 166.00 5.50 17.50 41.50 381.00 765.52 a 986.00 5739.52
1944 959.50 852.00 748.50 410.00 180.50 55.50 6.00 6.50 79.00 337.00 741.00 1042.00 5417.50
1945 881.50 687.50 701.00 475.50 199.00 108.50 1.50 11.50 210.00 363.45 b 759.50 1004.50 5403.45
1946 899.50 751.50 625.00 393.00 187.50 109.00 4.50 5.50 171.00 587.50 779.00 895.50 5408.50
1947 1103.50 712.00 557.50 399.50 85.50 76.00 1.50 16.00 113.00 390.50 747.00 838.00 5040.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 21.00 15.50 158.00 496.50 757.50 1127.50 2576.00
1949 1544.00 861.00 639.50 315.50 138.50 63.50 3.50 4.00 117.00 596.50 615.50 922.00 5820.50
1950 1449.00 846.50 715.50 483.50 274.00 100.50 16.00 11.00 146.50 399.00 679.00 745.50 5866.00
1951 972.00 767.50 772.00 406.50 202.00 104.00 6.50 32.50 114.50 499.50 777.50 1058.00 5712.50
1952 1096.50 779.50 695.95 a 340.00 177.50 75.50 10.50 18.50 82.00 379.00 903.50 904.50 5462.95
1953 646.00 677.50 632.50 436.00 303.00 162.00 1.50 16.50 94.50 414.50 646.00 811.00 4841.00
1954 991.00 655.50 741.00 451.00 198.00 153.50 8.50 41.50 153.50 505.00 620.50 982.50 5501.50
1955 989.50 842.00 870.07 a 566.00 321.50 45.50 41.50 3.50 189.50 438.00 925.00 1026.00 6258.07
1956 991.00 1034.00 709.00 341.00 202.00 90.50 7.50 29.00 127.00 509.50 825.00 886.00 5751.50
1957 1400.00 809.00 662.00 425.00 131.00 59.50 5.00 9.50 68.00 459.50 809.00 792.50 5630.00
1958 872.00 580.50 734.50 475.00 97.00 31.00 3.00 0.00 157.00 430.50 728.00 814.50 4923.00
1959 904.00 790.50 662.00 414.00 321.50 60.50 21.00 25.50 179.00 467.00 875.00 934.00 5654.00
Period of Record Statistics
MEAN 1034.21 768.69 679.83 406.62 210.45 89.43 8.36 14.32 124.00 442.52 761.07 915.52 5449.33
S.D. 221.20 97.16 79.40 59.97 74.72 42.35 9.77 11.02 52.41 70.33 87.88 97.84 369.34
SKEW 0.86 0.60 0.25 0.81 0.28 0.44 1.99 0.75 0.20 0.63 0.08 0.23 0.09
MAX 1544.00 1034.00 870.07 566.00 344.50 166.00 41.50 41.50 226.50 596.50 925.00 1127.50 6258.07
MIN 646.00 580.50 537.50 315.50 85.50 27.50 0.00 0.00 35.00 337.00 615.50 745.50 4841.00
NO YRS 21 21 21 21 21 21 22 22 22 22 23 23 21