SEATTLE UNIV OF WASH, WASHINGTON

Monthly Total Cooling Degree Days

(457478)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198307
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
1909 0.00 c 0.00 0.00 0.00 a 0.00 c 9.00 0.50 5.68 a 18.00 0.00 0.00 0.00 33.18
1910 0.00 0.00 a 0.00 0.00 b 0.00 4.50 29.00 7.00 0.00 g 0.00 0.00 0.00 40.50
1911 0.00 0.00 c 0.00 0.00 0.00 4.00 83.00 11.00 4.50 0.00 o 0.00 0.00 102.50
1912 0.00 0.00 0.00 0.00 15.00 25.00 55.50 14.50 4.50 0.00 0.00 0.00 114.50
1913 0.00 0.00 0.00 0.00 0.00 0.00 49.00 55.50 1.50 0.00 0.00 0.00 f 106.00
1914 0.00 0.00 0.00 d 0.00 a 2.67 b 15.58 d 0.00 z 14.98 a 0.00 0.00 0.00 a 0.00 z 33.23
1915 0.00 h 0.00 0.00 0.00 0.60 e 12.50 41.50 53.50 0.00 0.00 0.00 0.00 108.10
1916 0.00 0.00 0.00 0.00 0.00 16.00 9.00 43.00 2.00 0.00 0.00 0.00 70.00
1917 0.00 0.00 0.00 0.00 0.00 7.50 43.00 21.50 0.50 2.00 0.00 0.00 74.50
1918 0.00 0.00 0.00 0.00 0.00 z 17.50 39.00 39.50 22.50 0.00 0.00 0.00 118.50
1919 0.00 0.00 0.00 0.00 0.50 0.00 z 0.00 z 0.00 z 11.38 a 0.00 d 0.00 0.00 11.88
1920 0.00 a 0.00 0.00 0.00 0.00 2.00 h 17.00 14.00 0.00 0.00 z 0.00 0.00 31.00
1921 0.00 g 0.00 0.00 0.00 0.00 3.50 5.00 20.00 0.00 0.00 0.00 0.00 28.50
1922 0.00 0.00 0.00 0.00 22.50 29.00 42.00 18.50 12.00 0.00 0.00 0.00 124.00
1923 0.00 d 0.00 0.00 0.00 0.00 32.50 40.00 44.43 a 15.54 b 4.65 a 0.00 0.00 137.12
1924 0.00 a 0.00 0.00 0.00 3.21 b 24.50 37.72 a 16.50 13.50 0.00 0.00 0.00 95.42
1925 0.00 0.00 0.00 0.00 7.00 26.00 44.50 30.50 5.50 0.00 0.00 0.00 113.50
1926 0.00 0.00 0.00 2.50 8.00 39.00 71.00 31.00 7.00 0.00 0.00 0.00 158.50
1927 0.00 0.00 0.00 0.00 0.00 17.00 52.50 79.50 1.50 0.00 0.00 0.00 150.50
1928 0.00 0.00 0.00 0.00 10.50 10.00 69.50 13.00 8.00 0.00 0.00 0.00 111.00
1929 0.00 0.00 0.00 0.00 b 0.00 3.50 22.00 f 39.50 26.50 0.00 f 0.00 0.00 a 69.50
1930 0.00 0.00 0.00 0.00 0.00 6.00 28.50 48.50 5.00 0.00 0.00 b 0.00 88.00
1931 0.00 0.00 0.00 0.00 z 0.00 z 9.50 55.00 39.50 14.00 0.00 0.00 0.00 a 118.00
1932 0.00 a 0.00 0.00 0.00 0.00 48.50 14.00 48.50 17.50 5.50 0.00 0.00 134.00
1933 0.00 0.00 0.00 0.00 0.00 5.00 25.00 93.50 0.52 a 0.00 0.00 0.00 124.02
1934 0.00 0.00 0.00 6.50 7.50 17.00 17.00 62.50 17.50 6.00 0.00 0.00 134.00
1935 0.00 0.00 0.00 0.00 0.00 15.00 74.00 41.50 30.50 0.00 0.00 0.00 161.00
1936 0.00 0.00 0.00 0.00 13.50 17.00 32.00 68.00 4.00 4.00 0.00 0.00 138.50
1937 0.00 0.00 0.00 0.00 0.00 34.50 39.00 35.00 24.00 0.00 0.00 0.00 132.50
1938 0.00 0.00 0.00 0.00 3.00 20.00 99.00 6.00 20.00 0.00 0.00 0.00 148.00
1939 0.00 0.00 0.00 0.00 5.50 0.56 c 73.00 80.50 2.00 0.00 0.00 0.00 161.56
1940 0.00 a 0.00 0.00 1.50 2.50 30.00 31.50 35.13 a 23.00 3.00 0.00 0.00 a 126.63
1941 0.00 a 0.00 0.00 1.50 4.50 14.50 134.50 53.50 0.00 0.00 0.00 0.00 208.50
1942 0.00 0.00 0.00 b 0.00 0.00 10.50 129.50 108.00 6.50 5.17 a 0.00 0.00 a 259.67
1943 0.00 0.00 0.00 0.00 a 0.00 8.00 25.46 c 29.89 c 34.50 3.00 0.00 0.00 a 100.86
1944 0.00 0.00 0.00 0.00 4.00 22.76 a 87.26 d 41.33 a 44.00 0.00 0.00 0.00 199.35
1945 0.00 0.00 0.00 a 0.00 8.50 26.00 90.00 42.00 5.50 0.52 a 0.00 0.00 a 172.52
1946 0.00 0.00 0.00 a 0.00 2.07 a 6.72 a 72.16 b 0.00 z 11.50 j 0.00 c 0.00 g 0.00 h 80.95
1947 0.00 a 0.00 z 0.00 5.56 c 17.00 3.62 a 33.00 27.00 h 0.00 z 0.00 z 0.00 0.00 59.18
1948 0.00 0.00 0.00 0.00 6.50 47.50 36.50 19.50 22.00 0.00 0.00 0.00 132.00
1949 0.00 0.00 0.00 0.00 0.50 12.00 35.13 a 29.00 27.50 0.00 0.00 0.00 104.13
1950 0.00 0.00 0.00 0.00 0.00 31.50 39.50 65.50 16.00 0.00 0.00 0.00 a 152.50
1951 0.00 0.00 0.00 0.00 a 2.00 44.50 88.50 48.00 22.00 2.50 0.00 0.00 207.50
1952 0.00 0.00 0.00 0.00 2.00 0.00 g 56.32 a 72.00 34.00 0.00 0.00 0.00 a 164.32
1953 0.00 0.00 0.00 a 0.00 15.50 0.00 84.00 66.00 15.50 0.00 0.00 0.00 181.00
1954 0.00 0.00 0.00 a 0.00 0.00 e 1.50 2.50 11.00 1.00 0.00 0.00 0.00 16.00
1955 0.00 a 0.00 a 0.00 0.00 0.00 19.00 20.00 36.50 21.00 0.00 c 0.00 a 0.00 a 96.50
1956 0.00 a 0.00 0.00 0.00 26.00 7.50 116.00 88.00 18.50 0.00 d 0.00 0.00 256.00
1957 0.00 0.00 0.00 0.00 8.50 15.00 f 0.00 z 0.00 z 45.50 i 2.50 g 0.00 0.00 a 8.50
1958 0.00 z 0.00 0.00 a 0.00 33.58 a 62.78 c 186.00 b 101.86 c 16.00 g 0.00 e 0.00 h 0.00 z 384.22
1959 0.00 a 0.00 d 0.00 a 0.00 7.50 21.00 101.00 f 31.00 a 0.00 a 0.00 0.00 0.00 59.50
1960 0.00 0.00 0.00 0.00 1.50 6.50 124.50 60.45 a 3.50 0.00 e 0.00 a 0.00 r 196.45
1961 0.00 f 0.00 0.00 d 0.00 z 3.50 s 23.50 i 73.00 q 63.50 k 13.00 k 0.00 e 0.00 e 0.00 q 0.00
1962 0.00 d 0.00 0.00 k 0.00 b 0.00 3.00 j 33.50 f 27.00 k 2.00 k 0.00 b 0.00 d 0.00 a 0.00
1963 0.00 0.00 0.00 c 0.00 a 33.50 12.78 c 3.88 c 17.05 a 28.85 d 0.00 f 0.00 0.00 c 96.05
1964 0.00 z 0.00 z 0.00 a 0.00 7.00 3.62 a 0.00 z 0.00 z 0.00 0.00 0.00 i 0.00 10.62
1965 0.00 0.00 0.00 0.00 0.00 10.50 122.00 92.50 3.50 0.00 0.00 0.00 228.50
1966 0.00 0.00 0.00 a 0.00 4.00 16.50 36.50 69.00 25.00 1.00 0.00 0.00 152.00
1967 0.00 0.00 0.00 0.00 6.00 55.50 86.00 189.50 71.00 0.00 0.00 0.00 408.00
1968 0.00 0.00 0.00 0.00 3.50 20.00 115.00 56.50 20.50 0.00 0.00 0.00 215.50
1969 0.00 0.00 0.00 0.00 19.00 87.50 52.00 22.00 23.00 0.00 0.00 0.00 203.50
1970 0.00 0.00 0.00 0.00 2.00 76.00 68.50 47.50 3.75 b 0.00 0.00 0.00 197.75
1971 0.00 0.00 0.00 0.00 8.50 6.50 130.00 147.50 3.50 0.00 0.00 0.00 296.00
1972 0.00 0.00 0.00 0.00 28.50 8.00 107.50 129.50 28.50 0.00 0.00 0.00 302.00
1973 0.00 0.00 0.00 0.00 27.50 25.00 89.50 30.50 23.50 0.00 0.00 0.00 196.00
1974 0.00 0.00 0.00 0.00 a 0.00 25.00 53.00 96.50 75.00 0.00 0.00 0.00 249.50
1975 0.00 0.00 0.00 0.00 4.50 18.50 79.00 27.50 36.50 3.00 0.00 0.00 169.00
1976 0.00 0.00 0.00 2.00 9.50 14.50 55.00 17.50 17.00 0.00 0.00 0.00 115.50
1977 0.00 0.00 0.00 0.00 0.00 22.00 48.00 208.00 3.00 0.00 0.00 0.00 281.00
1978 0.00 0.00 0.00 0.00 5.00 78.50 f 118.32 a 74.50 0.00 0.00 0.00 0.00 a 197.82
1979 0.00 j 0.00 j 0.00 0.00 d 9.00 53.50 0.00 z 42.50 m 58.45 a 2.50 0.00 0.00 123.45
1980 0.00 a 0.00 0.00 0.50 1.55 a 2.22 c 88.00 45.50 23.50 18.00 0.00 0.00 179.27
1981 0.00 b 0.00 d 0.00 0.00 b 7.00 14.00 63.72 d 205.00 65.00 0.00 0.00 0.00 354.72
1982 0.00 0.00 0.00 0.00 6.50 109.00 62.50 87.50 43.00 0.00 0.00 0.00 308.50
1983 0.00 0.00 0.00 0.00 53.50 15.50 67.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 136.00
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.27 6.63 21.20 60.95 54.53 16.96 0.89 0.00 0.00 169.47
S.D. 0.00 0.00 0.00 1.07 10.02 20.81 38.21 44.35 17.39 2.58 0.00 0.00 79.00
SKEW 0.00 0.00 0.00 4.63 2.38 2.05 0.75 1.78 1.48 4.74 0.00 0.00 0.82
MAX 0.00 0.00 0.00 6.50 53.50 109.00 186.00 208.00 75.00 18.00 0.00 0.00 408.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.50 5.68 0.00 0.00 0.00 0.00 16.00
NO YRS 69 72 74 73 72 68 66 66 67 68 71 68 50