SEATTLE TCOMA WSCMO AP, WASHINGTON

Monthly Average Maximum 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 80.00 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 71.25 f 73.13 69.35 67.07 58.84 47.73 41.16 59.55
1949 37.26 44.07 53.23 59.40 68.42 70.80 74.06 74.45 71.00 56.61 56.17 43.52 59.08
1950 30.68 46.11 47.94 55.23 61.65 69.77 75.10 75.35 68.33 55.71 48.83 49.13 56.99
1951 42.16 46.75 46.39 61.07 64.61 73.23 76.35 73.26 69.47 57.84 49.23 41.65 58.50
1952 41.55 46.59 48.84 58.83 63.94 65.70 75.45 73.97 70.63 63.48 48.43 47.00 58.70
1953 48.97 46.04 50.10 54.93 61.71 63.27 72.23 72.81 69.70 60.81 52.87 46.94 58.36
1954 40.68 48.71 49.94 53.53 63.58 64.80 69.48 68.55 66.23 59.00 54.37 45.68 57.05
1955 43.65 44.32 46.06 52.83 58.94 66.67 68.65 71.32 66.03 56.65 44.37 43.61 55.26
1956 44.32 40.72 47.52 59.80 67.19 64.60 75.52 73.48 66.53 55.58 48.33 45.13 57.39
1957 37.87 45.61 50.32 57.83 66.65 68.70 70.94 71.00 73.50 57.81 49.87 48.58 58.22
1958 48.74 53.29 51.61 57.97 70.65 72.97 81.42 78.29 68.10 61.87 48.73 49.65 61.94
1959 45.10 45.96 50.32 56.93 62.48 67.57 76.94 71.71 64.43 58.16 49.97 45.13 57.89
1960 42.97 46.76 50.29 57.30 60.55 69.37 79.65 70.77 66.50 59.29 50.60 44.90 58.25
1961 49.74 49.18 52.29 53.93 62.39 74.10 78.45 80.32 68.33 58.55 48.50 43.74 59.96
1962 43.90 49.39 50.77 58.40 57.48 69.97 74.39 71.23 69.07 59.06 51.53 47.00 58.52
1963 38.68 54.96 50.94 55.33 67.94 67.80 70.94 74.06 73.30 61.29 49.80 45.58 59.22
1964 44.71 48.17 50.71 54.60 62.87 65.60 72.29 71.23 66.43 61.48 46.80 41.26 57.18
1965 44.58 48.29 56.52 57.50 60.65 71.37 79.45 74.61 66.47 63.81 54.50 45.19 60.24
1966 45.90 49.82 52.29 57.87 63.97 67.20 70.74 74.97 69.37 58.23 50.57 47.42 59.03
1967 46.39 48.68 48.26 53.67 63.94 72.03 76.68 83.74 76.37 60.90 52.50 45.52 60.72
1968 45.71 56.45 55.45 56.57 66.00 69.17 78.16 72.03 65.83 57.39 51.93 41.19 59.66
1969 36.81 48.32 54.65 56.33 67.94 73.43 75.26 73.16 68.97 59.84 51.30 49.71 59.64
1970 45.52 53.36 53.00 52.60 63.42 72.73 75.06 73.94 66.20 57.61 51.93 42.71 59.01
1971 43.58 47.11 46.94 56.83 62.84 62.73 75.65 77.77 65.50 56.81 50.00 41.77 57.29
1972 41.68 47.17 52.87 54.30 67.65 67.97 75.90 77.55 63.07 56.84 51.77 41.61 58.20
1973 43.52 50.57 50.29 57.30 65.68 66.93 75.35 70.74 70.30 57.90 48.37 48.52 58.79
1974 43.55 48.04 52.90 56.60 62.45 72.50 73.71 75.19 76.00 61.77 50.10 47.19 60.00
1975 43.10 47.00 49.81 53.60 64.10 69.63 78.00 71.55 73.33 57.03 50.53 46.52 58.68
1976 46.26 46.79 48.16 58.00 65.48 69.40 75.87 71.10 70.77 62.26 54.13 49.77 59.83
1977 44.71 55.86 51.52 63.17 61.90 72.60 75.23 79.68 66.80 58.97 49.10 46.68 60.52
1978 48.74 51.68 56.03 57.33 63.10 74.67 76.23 74.35 65.30 62.10 47.13 42.74 59.95
1979 43.39 47.75 57.55 58.73 66.77 73.30 78.68 72.90 70.90 60.74 49.77 48.87 60.78
1980 39.94 49.48 50.00 60.37 61.94 64.67 73.26 70.90 67.37 62.26 51.87 48.16 58.35
1981 50.52 50.54 55.97 57.07 62.52 65.00 72.29 79.10 70.47 57.03 52.87 46.03 59.95
1982 43.19 47.46 51.16 55.93 63.68 73.23 71.71 74.45 68.77 59.58 49.13 45.58 58.66
1983 49.97 52.64 55.77 59.53 66.32 67.47 71.26 74.03 66.10 58.06 52.47 40.71 59.53
1984 47.77 50.72 55.23 56.40 60.55 66.97 75.29 74.81 68.33 56.42 49.43 41.45 58.61
1985 42.94 44.57 50.65 56.80 63.84 69.23 80.94 75.77 65.93 57.68 40.63 41.35 57.53
1986 50.77 49.18 56.74 55.10 63.74 72.60 70.32 80.03 67.13 61.90 49.57 47.29 60.37
1987 45.71 52.61 56.55 61.10 66.29 73.80 74.32 77.55 73.27 65.35 54.13 44.55 62.10
1988 45.42 50.72 53.39 58.20 63.61 68.87 76.65 76.26 70.93 61.58 50.30 46.71 60.22
1989 45.32 43.21 50.29 63.03 65.00 73.17 73.90 74.97 75.10 60.23 51.80 47.26 60.27
1990 47.26 45.89 55.19 59.90 63.00 68.43 79.19 78.00 72.87 58.13 51.67 40.10 59.97
1991 45.00 54.68 51.03 57.07 61.84 67.10 77.71 77.13 73.37 61.74 52.10 48.35 60.59
1992 49.48 54.48 59.10 61.90 71.19 75.77 76.32 77.77 69.27 60.84 50.43 43.23 62.48
1993 43.48 50.46 55.84 56.97 68.71 68.57 68.68 74.90 73.50 62.84 48.77 47.13 59.99
1994 49.35 46.14 56.90 60.13 67.29 69.17 78.97 76.94 73.77 59.45 47.30 46.55 61.00
1995 52.03 51.32 55.74 59.80 70.00 72.20 76.71 71.68 73.37 59.42 54.47 47.48 62.02
1996 44.19 50.59 54.65 58.67 60.45 69.97 78.52 76.97 67.33 57.52 48.13 44.16 59.26
1997 45.68 48.39 51.06 56.90 67.03 66.97 73.68 78.13 70.83 56.71 55.30 47.35 59.84
1998 46.94 51.18 53.19 58.53 61.26 68.03 77.35 77.32 73.13 59.42 50.87 44.19 60.12
1999 46.03 47.50 50.58 57.30 59.61 65.70 71.74 73.42 70.90 59.39 53.20 46.06 58.45
2000 45.23 49.90 50.94 58.80 60.65 69.30 73.55 72.94 68.57 59.58 48.47 45.97 58.66
2001 47.61 47.68 52.10 55.03 64.90 65.27 71.68 73.77 67.70 56.84 51.53 46.71 58.40
2002 44.71 48.21 47.52 55.67 60.77 70.20 74.19 75.68 70.07 57.94 53.37 47.81 58.84
2003 51.10 47.46 52.42 55.30 62.87 72.40 78.97 76.71 71.70 60.19 48.53 46.58 60.35
2004 44.84 50.93 54.65 62.93 64.81 72.90 78.26 76.03 65.33 59.32 50.20 46.94 60.59
2005 47.42 51.04 56.23 57.93 65.81 67.40 75.32 77.32 68.13 59.74 47.53 47.35 60.10
2006 50.81 49.64 52.68 58.67 66.13 72.13 76.00 j ----- z ----- z ----- z ----- z ----- z 58.34
Period of Record Statistics
MEAN 44.95 48.97 52.22 57.47 64.15 69.43 75.10 74.78 69.36 59.37 50.41 45.52 59.32
S.D. 3.93 3.18 3.11 2.50 2.95 3.17 3.06 3.04 3.12 2.19 2.70 2.59 1.39
SKEW -0.88 0.20 0.07 0.26 0.27 -0.07 -0.15 0.35 0.32 0.46 -0.60 -0.43 -0.12
MAX 52.03 56.45 59.10 63.17 71.19 75.77 81.42 83.74 76.37 65.35 56.17 49.77 62.48
MIN 30.68 40.72 46.06 52.60 57.48 62.73 68.65 68.55 63.07 55.58 40.63 40.10 55.26
NO YRS 58 58 58 58 58 58 58 58 58 58 58 58 57