SALEM WSO AIRPORT, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(357500)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1892 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1893 27.90 34.04 37.00 39.30 42.00 44.90 a 45.23 45.81 46.07 39.35 35.53 37.77 39.57
1894 35.74 32.21 36.06 40.33 42.81 47.33 50.03 53.23 48.47 42.65 38.53 33.77 41.76
1895 33.35 35.29 33.19 39.73 44.00 t 47.83 51.29 49.90 45.67 40.42 36.03 35.45 40.74
1896 37.26 37.97 35.03 37.27 42.29 47.63 52.55 52.48 45.00 41.29 33.83 39.29 41.82
1897 34.81 36.71 34.48 b 41.10 45.87 50.40 49.97 54.29 47.57 41.61 39.00 37.81 42.80
1898 34.47 l 38.25 32.35 40.67 43.97 49.60 50.97 54.74 48.27 42.00 37.03 30.00 42.53
1899 37.45 34.56 c 33.20 a 36.70 43.32 44.43 b 50.42 50.06 47.57 40.84 45.00 35.39 41.58
1900 36.00 35.43 39.03 37.73 45.26 50.27 52.61 48.71 ----- z 36.32 35.90 38.16 41.40
1901 32.00 z ----- z ----- z ----- z 48.77 e 49.89 b ----- z 54.00 l 48.60 49.03 ----- z 36.52 46.56
1902 31.71 38.39 37.71 39.27 46.74 49.43 ----- z ----- z 44.83 41.29 36.63 35.32 40.13
1903 38.26 33.46 36.90 41.13 46.90 53.37 53.65 54.52 50.20 44.90 40.63 35.74 44.14
1904 37.23 36.07 38.48 44.20 46.39 50.33 54.77 53.52 50.10 45.87 45.17 38.06 45.02
1905 35.48 34.64 43.19 43.97 47.26 51.27 54.97 53.55 52.50 41.94 35.40 36.19 44.20
1906 38.97 37.32 37.13 43.33 47.55 50.60 57.65 54.42 51.27 46.48 41.83 39.32 45.49
1907 30.55 40.46 38.42 42.47 47.32 52.27 55.23 53.44 f 52.25 b 48.56 d 40.21 b 37.86 c 44.14
1908 36.28 f 36.42 j 38.74 41.19 c 44.73 a 50.87 57.64 c 54.64 f 47.80 46.03 41.57 34.61 44.80
1909 28.68 39.50 39.29 40.20 44.61 50.70 53.06 52.32 50.77 45.29 42.43 30.45 43.11
1910 34.29 33.96 43.35 43.47 49.29 50.40 54.81 50.90 49.10 46.94 39.87 38.55 44.58
1911 34.00 33.57 37.68 39.17 45.39 50.53 56.03 54.61 48.50 42.81 40.43 36.68 43.28
1912 37.10 38.48 36.85 d 41.37 47.42 51.63 56.06 54.71 49.23 41.16 39.97 35.58 44.13
1913 34.61 33.14 37.71 42.10 47.03 52.60 54.55 56.10 48.77 43.13 39.83 35.68 43.77
1914 40.42 37.75 42.26 44.90 47.94 50.20 54.61 54.48 50.57 48.16 40.50 31.00 45.23
1915 34.29 39.04 43.00 44.77 46.90 51.50 56.48 56.65 47.57 46.87 40.37 37.68 45.43
1916 28.29 38.17 40.32 41.43 43.13 50.13 54.03 55.55 50.63 38.81 33.83 33.45 42.32
1917 34.26 35.75 35.45 41.57 45.65 49.67 54.23 55.00 52.73 42.94 41.23 43.32 44.32
1918 39.39 35.86 40.29 43.23 45.39 53.13 55.19 55.32 52.87 46.26 38.07 35.00 45.00
1919 33.65 36.04 37.68 41.60 46.00 48.60 53.61 53.65 50.17 32.97 a ----- z 25.86 i 43.39
1920 30.26 29.07 34.29 37.17 37.97 46.77 46.10 47.65 46.91 g 42.97 35.10 36.97 38.57
1921 33.55 37.82 37.29 38.60 42.74 51.20 46.97 49.55 43.57 43.68 40.60 32.06 41.47
1922 28.19 31.29 34.39 37.93 44.61 50.73 52.26 53.13 49.57 46.10 34.37 34.81 41.45
1923 38.16 29.93 35.68 41.53 46.13 49.80 55.00 54.97 50.00 44.03 38.87 35.81 43.33
1924 31.97 40.72 36.23 39.63 45.87 51.97 51.10 53.39 48.50 45.42 38.43 29.26 42.71
1925 39.58 40.04 37.58 43.07 47.52 50.37 53.81 52.19 50.50 42.94 39.57 38.61 44.65
1926 34.52 41.25 40.13 46.03 47.74 52.70 55.48 53.94 48.23 45.94 41.60 36.10 45.30
1927 34.76 b 37.00 37.45 40.03 43.84 51.70 52.81 53.65 51.33 44.63 a 42.90 a 31.97 a 43.51
1928 34.00 34.34 42.10 41.10 45.97 51.34 a 54.00 48.13 45.07 42.61 38.70 31.70 a 42.42
1929 27.71 27.61 37.74 36.63 42.94 49.33 c 46.81 47.16 43.63 42.26 30.27 36.68 39.06
1930 19.32 38.11 34.97 40.60 40.39 44.33 45.00 49.96 c 47.87 39.48 34.93 32.10 38.92
1931 35.81 32.93 37.60 a 39.53 44.13 47.53 48.77 46.94 46.93 41.68 33.80 33.19 40.74
1932 32.55 32.83 38.67 a 40.43 42.35 47.48 a 48.03 52.06 42.87 43.68 39.70 28.94 40.80
1933 33.19 29.93 36.55 36.10 43.55 47.97 48.07 a 49.77 46.63 42.79 b 36.10 41.10 b 40.98
1934 38.88 f 35.73 b 39.45 40.79 b 44.63 a 46.57 48.39 49.06 43.13 43.00 44.73 35.71 42.84
1935 33.10 34.93 35.23 38.30 39.48 45.93 a 48.65 47.45 45.97 40.16 32.52 a 32.23 39.49
1936 36.45 28.50 a 33.55 40.67 45.58 49.53 49.32 47.84 44.17 40.10 28.40 37.13 40.10
1937 22.48 33.64 38.84 39.37 43.32 50.33 51.32 50.10 48.13 44.77 43.23 36.71 41.85
1938 33.10 34.96 36.74 41.37 43.81 48.27 52.71 49.23 51.70 44.48 35.13 35.61 42.26
1939 36.10 33.18 37.26 39.93 43.97 47.83 51.84 50.23 49.53 44.52 39.67 38.52 42.71
1940 32.45 39.10 39.81 41.03 45.73 a 47.80 52.41 b 53.48 d 52.57 45.28 f 36.20 35.57 a 43.29
1941 35.42 35.16 c 38.35 41.00 45.48 50.60 55.58 54.77 49.60 44.10 39.80 36.68 43.88
1942 29.26 35.21 35.39 41.53 45.84 48.80 55.29 54.32 47.90 43.19 39.17 39.03 42.91
1943 26.68 33.29 35.26 42.80 42.61 48.60 51.58 51.45 48.97 45.58 36.50 31.16 41.21
1944 31.35 34.41 34.58 41.17 43.90 49.47 51.84 51.32 49.97 46.03 37.67 30.87 41.88
1945 34.65 36.86 36.45 40.13 46.84 47.43 50.71 50.77 46.00 40.58 39.77 34.94 42.09
1946 33.77 35.14 37.42 39.03 44.68 49.27 52.81 51.23 46.97 40.71 34.70 35.87 41.80
1947 30.90 35.29 38.55 41.87 46.06 49.83 52.94 50.42 48.27 46.61 39.33 35.42 42.96
1948 30.84 32.76 35.42 39.03 45.39 52.47 51.32 52.55 46.33 40.81 36.17 31.37 a 41.20
1949 21.16 33.54 38.29 40.70 46.65 47.57 51.29 52.77 49.27 37.97 41.17 34.19 41.21
1950 23.26 33.82 37.45 37.50 41.65 50.60 51.13 52.06 45.87 45.29 39.53 42.16 41.69
1951 34.61 35.43 32.26 36.90 42.97 46.93 50.77 48.52 47.13 43.65 37.77 31.94 40.74
1952 32.42 33.00 35.61 36.37 40.77 47.40 49.65 50.26 46.33 42.97 29.30 34.61 39.89
1953 41.42 33.71 35.13 37.90 43.71 46.60 47.87 51.87 47.33 42.13 40.03 36.23 41.99
1954 33.94 33.57 30.16 36.50 41.55 46.00 48.29 50.84 45.43 38.29 42.30 33.48 40.03
1955 33.26 31.32 32.52 35.50 40.32 46.60 49.90 47.90 46.33 43.77 36.40 34.55 39.87
1956 34.68 31.17 35.68 38.33 45.39 46.17 51.45 50.39 46.73 41.87 33.33 34.16 40.78
1957 26.58 34.21 39.19 40.00 47.10 49.07 49.45 49.19 49.07 43.26 32.57 37.10 41.40
1958 35.90 41.00 34.26 39.60 46.90 53.77 53.94 53.13 48.20 41.81 39.90 39.10 43.96
1959 36.87 35.32 36.42 38.43 42.16 50.20 51.06 49.39 48.43 43.19 34.07 32.61 41.51
1960 30.03 33.17 35.39 39.00 42.03 45.90 48.77 50.61 47.23 43.90 39.30 33.13 40.71
1961 34.94 39.64 38.39 38.70 43.61 48.27 51.45 52.71 42.83 40.48 31.33 34.84 41.43
1962 29.52 32.25 34.77 39.70 42.39 45.00 46.68 50.00 48.40 43.29 39.70 35.94 40.64
1963 26.10 38.82 34.68 38.53 42.81 47.23 48.55 51.10 52.40 44.23 39.93 32.94 41.44
1964 35.90 30.69 34.87 37.13 41.00 49.03 52.29 49.39 44.23 39.74 35.27 34.10 40.30
1965 35.42 35.21 32.74 39.23 40.00 44.33 50.10 52.65 43.90 44.77 41.30 32.32 41.00
1966 33.52 31.21 34.77 37.43 39.52 47.50 49.65 50.32 48.93 40.71 39.40 37.97 40.91
1967 38.06 32.07 34.13 33.10 40.52 49.60 49.84 52.13 47.90 44.10 38.33 36.29 41.34
1968 33.16 37.79 37.48 35.00 43.03 46.27 49.42 52.68 47.70 40.97 37.73 30.58 40.98
1969 27.68 32.04 31.87 38.23 44.94 53.40 49.19 46.74 47.57 38.65 35.20 35.10 40.05
1970 35.84 33.93 34.06 35.00 39.87 49.43 48.90 47.13 43.17 37.29 33.80 32.94 39.28
1971 33.42 30.32 32.94 35.23 40.19 46.83 51.94 54.03 45.83 39.68 37.47 34.23 40.18
1972 31.74 35.41 38.19 35.00 42.90 46.70 50.19 50.55 43.07 36.71 38.77 27.87 39.76
1973 31.94 33.57 35.13 36.63 41.58 48.47 49.90 48.35 48.07 41.65 38.47 37.58 40.94
1974 30.35 35.29 37.03 39.53 41.52 47.63 52.39 51.84 46.67 37.48 38.80 36.97 41.29
1975 36.65 34.18 34.94 34.53 41.68 47.50 52.94 49.61 45.33 43.52 36.27 35.65 41.06
1976 33.68 31.93 32.84 36.07 40.55 43.37 50.39 51.74 47.93 38.35 35.73 32.26 39.57
1977 27.48 33.61 35.10 36.53 41.42 47.77 49.55 54.48 47.50 40.77 36.70 37.52 40.70
1978 36.39 38.79 37.13 39.43 42.97 52.33 54.16 55.13 51.13 40.32 30.23 27.61 42.14
1979 24.42 36.36 37.77 40.10 43.90 46.97 51.48 52.32 48.73 43.97 34.37 37.74 41.51
1980 27.26 34.69 35.94 38.67 42.45 47.10 49.68 46.26 47.03 40.19 39.73 36.16 40.43
1981 32.03 34.50 35.45 39.27 43.65 47.77 50.29 51.29 46.87 38.58 36.47 36.16 41.03
1982 33.19 33.43 33.65 33.00 40.84 52.00 51.71 51.23 48.10 42.26 33.57 34.74 40.64
1983 37.35 38.57 40.52 37.63 44.26 48.87 52.10 54.13 45.43 40.42 43.00 33.10 42.95
1984 34.77 34.79 38.48 37.63 41.29 44.47 48.84 51.26 47.33 42.97 37.43 31.48 40.90
1985 25.23 30.29 32.06 40.17 42.68 46.40 52.45 49.48 44.67 39.58 30.07 24.35 38.12
1986 35.68 37.46 39.61 37.20 43.77 50.33 50.23 52.87 47.37 41.84 39.57 32.19 42.34
1987 31.81 34.93 37.13 38.83 45.06 48.40 52.19 51.55 46.83 39.77 39.17 33.94 41.63
1988 33.35 33.41 34.61 40.90 42.16 47.97 50.26 48.90 45.53 45.55 41.03 34.03 41.48
1989 35.29 26.00 38.52 42.33 44.03 49.70 51.77 51.55 45.60 41.61 40.37 33.48 41.69
1990 36.39 33.61 36.87 40.20 43.77 50.77 53.06 55.19 50.23 40.39 39.67 27.94 42.34
1991 31.29 39.68 34.90 38.93 43.23 46.60 52.71 53.32 48.37 40.35 41.07 36.84 42.27
1992 37.16 38.48 37.81 43.30 44.65 50.53 54.71 51.32 48.80 44.13 40.03 33.65 43.71
1993 29.35 30.18 39.74 43.33 48.32 49.87 51.77 53.26 45.63 43.06 31.27 34.90 41.72
1994 37.58 35.04 38.87 42.10 46.87 47.70 51.29 52.00 50.67 40.97 35.07 36.00 42.85
1995 37.87 37.86 36.97 39.27 45.97 49.50 55.32 51.39 52.40 42.26 44.67 36.26 44.14
1996 36.97 33.55 37.45 42.17 43.55 48.17 55.45 52.81 47.57 43.00 38.60 36.55 42.99
1997 35.13 33.93 38.42 39.50 47.77 49.33 53.35 55.77 52.50 44.06 40.47 33.10 43.61
1998 38.58 38.32 38.45 39.70 46.74 50.27 56.23 54.03 49.47 42.77 42.23 34.39 44.27
1999 36.00 36.86 36.90 38.13 42.55 48.97 51.74 55.52 46.17 40.97 42.97 36.10 42.74
2000 33.84 35.90 34.58 40.00 46.23 50.10 52.29 51.00 49.20 42.71 32.30 33.87 41.83
2001 32.65 31.82 36.74 38.10 43.39 47.13 52.77 52.81 49.80 41.61 41.03 35.23 41.92
2002 36.13 33.68 35.23 40.20 43.26 49.90 54.19 52.39 48.93 39.58 37.03 37.29 42.32
2003 37.74 34.46 41.58 41.27 45.10 50.33 54.23 54.97 50.97 47.52 36.50 36.13 44.23
2004 34.90 35.72 38.13 39.80 46.81 50.93 55.00 56.00 49.67 44.61 36.93 36.71 43.77
2005 35.32 30.86 37.32 40.77 48.23 49.87 55.00 52.74 46.43 45.71 33.97 33.68 42.49
2006 39.65 32.57 36.42 39.60 44.68 53.03 55.42 52.10 48.10 39.45 41.23 32.94 42.93
2007 30.48 37.43 39.42 39.40 44.29 49.67 56.74 54.42 48.63 42.84 35.87 34.84 42.84
2008 31.39 34.24 34.71 36.87 47.74 46.83 53.48 54.87 48.10 40.81 41.23 30.42 41.72
2009 32.77 31.96 36.39 38.43 44.10 53.40 56.26 54.71 51.03 43.87 39.23 30.23 42.70
2010 40.68 37.89 38.03 40.07 45.00 49.93 53.03 53.16 52.57 44.39 39.07 38.84 44.39
2011 35.61 33.61 40.03 38.63 44.32 50.60 53.32 55.65 52.03 46.55 37.77 32.06 43.35
2012 35.23 34.66 36.23 41.80 44.00 49.97 53.97 54.23 48.67 45.16 42.73 38.10 43.73
2013 32.87 37.21 38.42 49.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 36.17
Period of Record Statistics
MEAN 33.38 34.85 36.79 39.56 44.20 49.05 51.98 51.92 48.05 42.53 37.99 34.82 42.07
S.D. 4.13 2.95 2.50 2.44 2.35 2.22 2.70 2.49 2.44 2.75 3.50 3.04 1.60
SKEW -0.90 -0.13 0.17 -0.12 -0.15 -0.15 -0.22 -0.35 -0.06 -0.27 -0.45 -0.39 0.14
MAX 41.42 41.25 43.35 46.03 49.29 53.77 57.65 56.65 52.87 49.03 45.17 43.32 45.49
MIN 19.32 26.00 30.16 33.00 37.97 43.37 45.00 45.81 42.83 32.97 28.40 24.35 38.12
NO YRS 117 119 120 119 119 120 118 116 118 119 118 119 109