SEATTLE TCOMA WSCMO AP, WASHINGTON

Monthly Average Minimum 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 50.00 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 52.25 f 51.58 53.00 47.17 41.97 36.37 30.81 43.48
1949 22.61 30.54 37.87 40.77 46.16 47.30 51.10 52.94 50.50 40.52 42.63 33.23 41.35
1950 19.03 33.86 36.16 37.47 41.61 50.50 52.16 52.16 47.27 42.61 38.33 40.42 40.97
1951 31.68 33.36 32.29 38.00 43.74 48.97 52.35 49.97 48.60 43.74 38.27 31.23 41.02
1952 31.26 34.69 35.81 38.07 44.06 47.27 51.35 52.03 47.73 45.03 33.63 36.26 41.43
1953 39.61 34.32 35.81 38.63 43.48 47.67 51.45 52.65 49.60 45.52 40.47 37.58 43.07
1954 31.42 35.68 31.42 37.57 44.16 47.77 50.68 52.61 51.13 42.13 43.53 35.77 41.99
1955 34.61 32.07 32.16 36.27 42.39 49.23 51.45 50.52 47.93 44.06 33.37 33.06 40.59
1956 33.61 30.55 34.13 39.40 46.39 49.17 53.68 52.35 49.27 43.32 36.90 35.32 42.01
1957 27.29 33.39 38.48 42.40 49.19 51.97 52.61 52.23 51.90 43.58 37.07 38.68 43.23
1958 38.48 41.71 36.39 40.40 50.19 54.87 56.16 54.77 51.47 45.87 38.13 40.06 45.71
1959 36.45 35.96 38.00 42.20 44.42 51.53 55.16 52.84 50.40 45.81 37.80 35.39 43.83
1960 34.77 35.62 36.68 41.17 44.81 49.63 53.81 53.58 49.50 46.03 38.40 34.03 43.17
1961 37.48 39.61 38.16 40.13 45.19 52.77 55.61 56.39 49.07 43.13 35.20 34.90 43.97
1962 32.84 36.68 35.81 41.47 43.74 49.73 52.65 52.81 50.13 46.03 41.37 37.48 43.39
1963 29.13 41.39 36.58 41.23 47.48 51.90 53.77 55.03 53.73 47.61 39.03 35.90 44.40
1964 35.16 34.45 37.48 39.03 43.55 50.23 54.71 53.94 50.53 45.48 37.30 31.48 42.78
1965 35.81 37.57 37.39 41.40 43.06 50.20 56.03 56.84 50.17 49.00 44.33 35.65 44.79
1966 36.26 38.00 37.94 42.03 44.97 50.17 53.48 53.97 53.53 44.58 40.13 39.58 44.55
1967 38.29 36.93 35.97 39.37 46.90 53.33 56.19 58.42 54.97 48.61 42.07 37.58 45.72
1968 36.13 40.48 41.71 40.67 48.52 52.20 55.84 55.26 52.30 45.45 41.73 32.03 45.19
1969 29.39 36.29 39.13 41.40 48.13 55.07 54.06 54.84 52.90 45.03 41.80 40.68 44.89
1970 36.87 40.57 38.90 39.53 45.90 52.57 54.74 55.03 51.03 43.87 41.03 35.16 44.60
1971 35.74 37.50 35.68 41.00 46.13 49.00 55.39 57.65 49.63 45.06 41.43 33.23 43.95
1972 32.19 35.55 40.77 39.73 49.03 52.10 56.06 55.84 47.57 43.29 41.63 34.55 44.03
1973 33.94 37.18 37.94 39.90 47.26 51.63 54.03 52.39 53.37 46.48 39.03 40.23 44.45
1974 33.84 38.25 39.68 44.03 47.26 52.73 54.23 53.97 52.70 43.23 40.07 37.65 44.80
1975 34.35 34.57 35.94 38.00 45.03 51.67 57.00 54.87 52.57 45.81 39.27 36.45 43.79
1976 37.23 35.00 34.26 41.03 47.23 50.57 55.87 57.06 54.30 47.45 41.37 39.58 45.08
1977 34.10 41.46 39.87 43.93 47.00 53.40 55.03 57.23 51.00 45.39 38.60 37.58 45.38
1978 39.97 40.32 41.23 42.47 45.84 53.93 55.39 56.48 52.30 46.48 35.27 32.16 45.15
1979 32.23 36.75 41.10 42.87 47.58 51.67 56.10 54.97 54.30 47.61 37.97 39.26 45.20
1980 29.74 38.03 38.55 42.80 46.48 50.23 54.26 52.94 51.83 45.39 41.47 39.94 44.30
1981 38.19 37.82 41.61 42.07 46.87 50.00 54.26 57.03 51.57 44.77 41.37 37.29 45.24
1982 35.39 36.68 36.94 38.83 45.61 53.00 53.81 55.68 52.33 45.84 37.23 35.87 43.93
1983 39.87 41.18 42.87 41.83 49.00 52.30 55.23 57.19 50.40 45.19 43.00 31.52 45.80
1984 38.55 38.90 41.74 41.00 45.19 50.60 54.68 55.03 51.37 42.90 39.83 32.10 44.32
1985 31.26 33.39 35.90 41.47 45.84 50.83 56.23 54.48 50.27 45.03 30.93 30.94 42.21
1986 38.94 36.36 41.71 41.07 47.68 52.67 53.13 56.77 51.07 46.74 40.97 36.58 45.31
1987 35.19 39.86 41.32 42.80 47.55 51.30 54.03 54.71 51.77 46.13 42.93 33.87 45.12
1988 34.68 38.10 37.84 42.37 46.06 50.30 53.94 54.45 50.10 49.23 40.43 37.06 44.55
1989 35.74 28.54 37.10 43.80 46.94 53.20 55.03 55.52 52.97 45.90 42.07 38.48 44.61
1990 37.74 33.96 39.00 44.27 46.29 51.23 56.77 56.48 53.87 44.19 41.37 30.39 44.63
1991 34.90 40.71 37.23 41.03 46.77 50.57 55.81 56.00 52.30 44.00 42.50 39.03 45.07
1992 38.32 40.03 41.52 44.30 48.42 54.10 57.00 55.77 50.67 47.87 40.47 34.32 46.07
1993 32.23 34.11 40.39 44.07 50.52 52.47 53.58 56.03 50.17 47.90 35.17 35.68 44.36
1994 40.35 34.64 40.13 44.47 49.00 51.93 56.81 57.71 54.90 46.13 37.40 36.94 45.87
1995 40.68 40.50 39.84 43.70 50.19 53.17 57.29 54.16 54.60 45.48 43.70 37.29 46.72
1996 35.13 35.66 39.84 44.33 45.68 50.87 57.16 55.87 51.07 44.74 38.13 34.32 44.40
1997 36.45 35.39 38.42 41.40 49.29 51.87 55.19 57.32 53.47 45.87 41.53 35.61 45.15
1998 37.39 40.25 39.97 42.20 48.39 51.70 57.81 56.19 53.13 45.81 42.47 35.61 45.91
1999 37.87 37.50 37.97 39.70 44.03 50.57 53.10 56.10 50.67 44.87 42.60 37.84 44.40
2000 35.29 37.48 37.97 42.97 47.00 51.83 55.00 53.97 51.77 46.00 36.43 35.45 44.26
2001 36.35 33.64 38.68 40.87 45.81 49.87 53.16 55.77 51.80 44.94 41.80 36.26 44.08
2002 36.74 35.46 36.19 41.83 45.26 51.97 55.71 54.71 51.10 44.84 40.70 38.16 44.39
2003 40.35 35.75 41.16 42.47 46.68 53.20 56.68 56.06 53.47 48.26 37.10 36.87 45.67
2004 35.68 38.00 40.55 43.63 49.10 53.77 58.00 58.13 52.33 47.26 39.73 38.03 46.18
2005 36.77 34.11 41.87 43.57 50.61 52.43 55.77 56.16 50.87 48.23 38.27 37.90 45.55
2006 42.32 36.18 38.32 41.93 47.71 54.20 55.95 j ----- z ----- z ----- z ----- z ----- z 43.44
Period of Record Statistics
MEAN 35.07 36.60 38.20 41.32 46.52 51.39 54.64 54.91 51.35 45.40 39.54 35.97 44.26
S.D. 4.16 2.95 2.58 1.99 2.08 1.82 1.80 1.91 1.93 1.81 2.83 2.72 1.41
SKEW -1.44 -0.26 -0.47 -0.41 -0.07 -0.30 -0.31 -0.42 -0.20 -0.12 -0.72 -0.30 -0.92
MAX 42.32 41.71 42.87 44.47 50.61 55.07 58.00 58.42 54.97 49.23 44.33 40.68 46.72
MIN 19.03 28.54 31.42 36.27 41.61 47.27 50.68 49.97 47.17 40.52 30.93 30.39 40.59
NO YRS 58 58 58 58 58 58 58 58 58 58 58 58 57