SEATTLE TCOMA WSCMO AP, WASHINGTON

Monthly Average Temperature (Degrees Fahrenheit)

(457473)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
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
1931 ----- z ----- z ----- z ----- z ----- z ----- z 65.00 z ----- z ----- z ----- z ----- z ----- z 9999.00
1932 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1934 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1935 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1936 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1937 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1938 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1939 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1940 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1942 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1943 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1945 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1948 ----- z ----- z ----- z ----- z ----- z 61.75 f 62.35 61.18 57.12 50.40 42.05 35.98 51.51
1949 29.94 37.30 45.55 50.08 57.29 59.05 62.58 63.69 60.75 48.56 49.40 38.37 50.21
1950 24.85 39.98 42.05 46.35 51.63 60.13 63.63 63.76 57.80 49.16 43.58 44.77 48.98
1951 36.92 40.05 39.34 49.53 54.18 61.10 64.35 61.61 59.03 50.79 43.75 36.44 49.76
1952 36.40 40.64 42.32 48.45 54.00 56.48 63.40 63.00 59.18 54.26 41.03 41.63 50.07
1953 44.29 40.18 42.95 46.78 52.60 55.47 61.84 62.73 59.65 53.16 46.67 42.26 50.71
1954 36.05 42.20 40.68 45.55 53.87 56.28 60.08 60.58 58.68 50.56 48.95 40.73 49.52
1955 39.13 38.20 39.11 44.55 50.66 57.95 60.05 60.92 56.98 50.35 38.87 38.34 47.93
1956 38.97 35.64 40.82 49.60 56.79 56.88 64.60 62.92 57.90 49.45 42.62 40.23 49.70
1957 32.58 39.50 44.40 50.12 57.92 60.33 61.77 61.61 62.70 50.69 43.47 43.63 50.73
1958 43.61 47.50 44.00 49.18 60.42 63.92 68.79 66.53 59.78 53.87 43.43 44.85 53.82
1959 40.77 40.96 44.16 49.57 53.45 59.55 66.05 62.27 57.42 51.98 43.88 40.26 50.86
1960 38.87 41.19 43.48 49.23 52.68 59.50 66.73 62.18 58.00 52.66 44.50 39.47 50.71
1961 43.61 44.39 45.23 47.03 53.79 63.43 67.03 68.35 58.70 50.84 41.85 39.32 51.97
1962 38.37 43.04 43.29 49.93 50.61 59.85 63.52 62.02 59.60 52.55 46.45 42.24 50.96
1963 33.90 48.18 43.76 48.28 57.71 59.85 62.35 64.55 63.52 54.45 44.42 40.74 51.81
1964 39.94 41.31 44.10 46.82 53.21 57.92 63.50 62.58 58.48 53.48 42.05 36.37 49.98
1965 40.19 42.93 46.95 49.45 51.85 60.78 67.74 65.73 58.32 56.40 49.42 40.42 52.52
1966 41.08 43.91 45.11 49.95 54.47 58.68 62.11 64.47 61.45 51.40 45.35 43.50 51.79
1967 42.34 42.80 42.11 46.52 55.42 62.68 66.44 71.08 65.67 54.76 47.28 41.55 53.22
1968 40.92 48.47 48.58 48.62 57.26 60.68 67.00 63.65 59.07 51.42 46.83 36.61 52.43
1969 33.10 42.30 46.89 48.87 58.03 64.25 64.66 64.00 60.93 52.44 46.55 45.19 52.27
1970 41.19 46.96 45.95 46.07 54.66 62.65 64.90 64.48 58.62 50.74 46.48 38.94 51.80
1971 39.66 42.30 41.31 48.92 54.48 55.87 65.52 67.71 57.57 50.94 45.72 37.50 50.62
1972 36.94 41.36 46.82 47.02 58.34 60.03 65.98 66.69 55.32 50.06 46.70 38.08 51.11
1973 38.73 43.88 44.11 48.60 56.47 59.28 64.69 61.56 61.83 52.19 43.70 44.37 51.62
1974 38.69 43.14 46.29 50.32 54.85 62.62 63.97 64.58 64.35 52.50 45.08 42.42 52.40
1975 38.73 40.79 42.87 45.80 54.56 60.65 67.50 63.21 62.95 51.42 44.90 41.48 51.24
1976 41.74 40.90 41.21 49.52 56.35 59.98 65.87 64.08 62.53 54.85 47.75 44.68 52.46
1977 39.40 48.66 45.69 53.55 54.45 63.00 65.13 68.45 58.90 52.18 43.85 42.13 52.95
1978 44.35 46.00 48.63 49.90 54.47 64.30 65.81 65.42 58.80 54.29 41.20 37.45 52.55
1979 37.81 42.25 49.32 50.80 57.18 62.48 67.39 63.94 62.60 54.18 43.87 44.06 52.99
1980 34.84 43.76 44.27 51.58 54.21 57.45 63.76 61.92 59.60 53.82 46.67 44.05 51.33
1981 44.35 44.18 48.79 49.57 54.69 57.50 63.27 68.06 61.02 50.90 47.12 41.66 52.59
1982 39.29 42.07 44.05 47.38 54.65 63.12 62.76 65.06 60.55 52.71 43.18 40.73 51.30
1983 44.92 46.91 49.32 50.68 57.66 59.88 63.24 65.61 58.25 51.63 47.73 36.11 52.66
1984 43.16 44.81 48.48 48.70 52.87 58.78 64.98 64.92 59.85 49.66 44.63 36.77 51.47
1985 37.10 38.98 43.27 49.13 54.84 60.03 68.58 65.13 58.10 51.35 35.78 36.15 49.87
1986 44.85 42.77 49.23 48.08 55.71 62.63 61.73 68.40 59.10 54.32 45.27 41.94 52.84
1987 40.45 46.23 48.94 51.95 56.92 62.55 64.18 66.13 62.52 55.74 48.53 39.21 53.61
1988 40.05 44.41 45.61 50.28 54.84 59.58 65.29 65.35 60.52 55.40 45.37 41.89 52.38
1989 40.53 35.88 43.69 53.42 55.97 63.18 64.47 65.24 64.03 53.06 46.93 42.87 52.44
1990 42.50 39.93 47.10 52.08 54.65 59.83 67.98 67.24 63.37 51.16 46.52 35.24 52.30
1991 39.95 47.70 44.13 49.05 54.31 58.83 66.76 66.56 62.83 52.87 47.30 43.69 52.83
1992 43.90 47.26 50.31 53.10 59.81 64.93 66.66 66.77 59.97 54.35 45.45 38.77 54.27
1993 37.85 42.29 48.11 50.52 59.61 60.52 61.13 65.47 61.83 55.37 41.97 41.40 52.17
1994 44.85 40.39 48.52 52.30 58.15 60.55 67.89 67.32 64.33 52.79 42.35 41.74 53.43
1995 46.35 45.91 47.79 51.75 60.10 62.68 67.00 62.92 63.98 52.45 49.08 42.39 54.37
1996 39.66 43.12 47.24 51.50 53.06 60.42 67.84 66.42 59.20 51.13 43.13 39.24 51.83
1997 41.06 41.89 44.74 49.15 58.16 59.42 64.44 67.73 62.15 51.29 48.42 41.48 52.49
1998 42.16 45.71 46.58 50.37 54.82 59.87 67.58 66.76 63.13 52.61 46.67 39.90 53.01
1999 41.95 42.50 44.27 48.50 51.82 58.13 62.42 64.76 60.78 52.13 47.90 41.95 51.43
2000 40.26 43.69 44.45 50.88 53.82 60.57 64.27 63.45 60.17 52.79 42.45 40.71 51.46
2001 41.98 40.66 45.39 47.95 55.35 57.57 62.42 64.77 59.75 50.89 46.67 41.48 51.24
2002 40.73 41.84 41.85 48.75 53.02 61.08 64.95 65.19 60.58 51.39 47.03 42.98 51.62
2003 45.73 41.61 46.79 48.88 54.77 62.80 67.82 66.39 62.58 54.23 42.82 41.73 53.01
2004 40.26 44.47 47.60 53.28 56.95 63.33 68.13 67.08 58.83 53.29 44.97 42.48 53.39
2005 42.10 42.57 49.05 50.75 58.21 59.92 65.55 66.74 59.50 53.98 42.90 42.63 52.82
2006 46.56 42.91 45.50 50.30 56.92 63.17 65.98 j ----- z ----- z ----- z ----- z ----- z 50.89
Period of Record Statistics
MEAN 40.01 42.78 45.21 49.39 55.34 60.41 64.87 64.84 60.36 52.39 44.97 40.75 51.79
S.D. 3.99 2.96 2.73 2.02 2.33 2.29 2.23 2.26 2.24 1.77 2.68 2.61 1.33
SKEW -1.19 -0.02 -0.16 -0.06 0.20 -0.09 -0.16 0.20 0.31 0.12 -0.71 -0.37 -0.45
MAX 46.56 48.66 50.31 53.55 60.42 64.93 68.79 71.08 65.67 56.40 49.42 45.19 54.37
MIN 24.85 35.64 39.11 44.55 50.61 55.47 60.05 60.58 55.32 48.56 35.78 35.24 47.93
NO YRS 58 58 58 58 58 58 58 58 58 58 58 58 57