THE DALLES, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(358407)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1893 20.42 22.36 34.45 40.07 46.23 50.00 56.29 56.03 49.53 40.39 34.10 36.03 40.49
1894 30.45 27.68 35.32 41.73 47.87 52.97 58.74 58.23 50.30 42.00 39.83 30.52 42.97
1895 23.61 33.25 34.00 41.03 46.74 53.03 56.74 56.90 48.53 38.90 31.77 31.65 41.35
1896 30.50 a 35.69 34.35 39.10 46.68 53.80 62.19 56.90 48.90 41.90 28.83 33.81 42.72
1897 31.48 32.64 33.58 42.60 50.16 54.57 56.42 60.13 49.23 41.39 36.60 31.58 43.37
1898 30.26 36.07 35.10 40.87 46.10 52.70 56.68 59.35 49.80 40.03 35.07 27.13 42.43
1899 28.26 28.25 34.58 39.80 44.61 51.00 57.52 53.62 b 49.67 41.19 40.87 31.65 41.75
1900 32.87 32.61 39.71 41.07 48.10 54.76 a 56.90 54.48 48.87 40.71 33.30 37.19 43.38
1901 29.26 30.04 b 34.50 e 37.70 47.77 50.00 54.70 a 57.93 b 47.87 45.45 37.53 32.26 42.08
1902 26.71 31.43 35.61 c 40.23 49.16 50.00 54.26 55.71 48.67 41.97 36.70 30.29 41.73
1903 32.77 27.14 34.68 39.03 47.58 55.14 a 55.10 56.00 48.00 40.81 36.97 a 31.32 42.04
1904 32.90 29.10 34.77 42.57 46.23 50.90 57.35 56.03 49.23 42.06 37.80 33.42 42.70
1905 30.71 27.36 40.03 41.83 46.68 54.30 57.29 56.00 51.90 38.16 31.17 31.90 42.28
1906 32.71 35.54 33.87 42.77 47.52 50.43 63.00 57.32 51.00 44.00 a 37.13 34.84 44.18
1907 20.90 32.86 34.84 39.77 49.61 53.73 58.23 54.71 49.30 43.61 34.57 33.74 42.16
1908 30.97 30.83 37.94 41.70 45.68 51.97 60.39 56.55 49.10 42.84 36.40 29.10 42.79
1909 16.97 a 33.89 35.90 40.63 45.39 54.03 55.74 53.00 51.57 42.63 a 36.43 23.16 40.78
1910 22.65 28.00 39.61 42.80 49.39 51.83 57.71 53.29 48.97 44.87 37.33 34.94 42.62
1911 29.61 28.18 34.61 38.07 44.84 53.80 59.10 55.94 48.63 39.35 34.43 31.97 41.54
1912 25.84 34.90 33.19 41.73 47.61 54.17 58.35 56.32 ----- z ----- z ----- z ----- z 44.01
1913 ----- z ----- z 32.75 s 42.40 47.71 55.90 59.32 60.68 ----- z 41.87 38.14 b 29.86 b 46.99
1914 32.83 a 33.41 a 36.81 42.79 b 43.32 49.83 59.23 57.61 44.50 37.35 30.63 c 20.06 40.70
1915 25.81 31.25 36.65 41.28 a 45.68 52.72 a 57.74 59.06 47.46 b 40.06 33.20 29.13 41.67
1916 11.55 25.31 34.42 39.60 41.39 49.67 53.10 b 54.74 46.43 34.10 27.50 26.87 37.06
1917 24.16 29.64 31.06 37.77 45.19 50.10 58.26 56.71 50.07 39.81 34.50 36.68 41.16
1918 33.81 27.89 34.84 38.83 44.68 54.67 56.42 53.61 51.57 43.65 32.77 31.39 42.01
1919 23.58 32.18 36.87 41.37 46.47 a 50.69 a 59.96 c 54.81 41.10 38.74 34.83 14.94 39.63
1920 29.10 29.55 37.26 39.63 43.00 51.90 59.48 57.35 49.03 42.45 31.83 32.77 41.95
1921 32.16 33.00 39.39 40.00 c 47.19 56.07 55.94 55.06 43.03 38.97 30.73 26.10 41.47
1922 19.13 25.61 34.16 37.76 a 44.45 55.57 57.11 d 57.46 c 48.39 b 43.30 d 34.40 24.07 b 40.12
1923 33.14 b 23.44 c 34.19 40.87 47.06 53.80 59.45 58.97 50.73 41.13 35.67 29.87 42.36
1924 22.84 35.10 34.84 40.79 a 48.87 52.93 55.87 56.23 46.93 41.55 34.90 20.48 40.95
1925 31.63 a 36.68 35.58 42.60 49.71 52.90 61.16 55.90 50.77 39.84 33.00 34.16 43.66
1926 33.65 37.46 34.60 a 41.80 45.06 56.07 61.39 58.00 b 44.83 41.94 35.57 27.36 c 43.14
1927 24.81 33.89 35.16 39.07 45.55 55.00 56.74 57.45 50.67 c 44.13 38.90 26.52 42.32
1928 26.77 29.38 38.58 38.77 49.03 54.63 60.42 56.13 47.20 38.97 34.37 28.29 41.88
1929 22.87 17.57 36.94 38.40 46.97 54.33 54.16 57.74 46.73 41.35 27.70 32.19 39.75
1930 8.77 34.68 37.26 43.40 46.77 51.10 59.26 58.48 50.40 39.58 34.60 31.74 41.34
1931 32.81 31.57 35.35 40.00 49.71 53.27 57.65 55.97 51.70 41.35 31.50 24.39 42.11
1932 29.35 27.14 40.03 42.13 46.84 54.07 56.35 56.23 47.10 44.16 37.07 23.48 42.00
1933 27.30 a 24.70 a 35.97 38.50 44.32 54.03 57.61 56.45 48.23 41.90 35.10 35.29 41.62
1934 34.35 33.89 38.00 44.90 47.94 55.10 56.74 55.74 50.43 45.26 39.23 34.43 a 44.67
1935 27.00 32.56 a 33.39 38.60 45.45 53.47 59.23 55.00 52.00 39.94 30.67 32.13 41.62
1936 31.26 18.24 35.06 44.73 49.16 55.40 58.19 55.52 47.90 39.19 25.77 33.10 41.13
1937 12.06 25.36 37.45 41.07 48.26 53.67 57.81 55.13 51.60 44.68 38.10 34.48 41.64
1938 32.29 31.82 35.32 41.97 45.90 54.37 56.84 53.48 52.17 41.74 31.97 30.03 42.33
1939 31.97 30.63 a 37.84 43.43 48.19 52.27 59.26 56.42 50.23 43.61 31.97 34.68 43.37
1940 29.03 35.38 40.10 43.53 50.48 55.17 60.06 55.58 54.33 46.68 33.43 30.13 44.49
1941 31.58 32.85 a 36.90 a 45.30 49.97 a 58.43 65.48 60.87 52.86 b 45.65 36.83 32.84 45.80
1942 22.39 32.46 33.10 a 43.10 48.32 53.90 61.42 58.52 ----- z 44.45 35.80 34.71 42.56
1943 21.19 32.61 35.03 43.57 44.84 50.93 57.13 56.13 51.93 a 44.19 37.50 ----- z 43.19
1944 ----- z 33.12 u 34.90 42.80 48.84 54.77 61.00 58.81 52.90 45.68 36.93 31.65 46.83
1945 35.23 34.89 36.90 42.83 49.97 54.03 60.74 59.81 50.37 44.32 36.33 31.48 44.74
1946 32.06 33.89 38.13 42.27 50.48 53.90 60.03 58.94 51.83 42.06 32.23 34.55 44.20
1947 27.16 34.43 39.06 44.73 53.23 53.37 59.84 56.87 52.47 47.87 40.70 34.90 45.39
1948 ----- z ----- z ----- z ----- z ----- z ----- z 57.52 58.20 a 50.03 40.32 c 35.67 28.23 44.99
1949 13.65 28.79 37.48 43.33 50.90 54.30 58.97 58.80 a 52.27 38.10 39.23 33.06 42.41
1950 15.13 23.54 36.13 40.23 45.83 a 54.70 58.39 58.73 a 51.47 44.81 37.87 36.94 41.98
1951 30.71 30.89 34.39 41.10 48.29 55.47 60.00 57.65 51.00 43.52 34.40 28.84 43.02
1952 24.19 30.59 35.71 40.57 49.19 55.10 59.52 59.06 52.45 a 44.77 30.21 a 33.10 42.87
1953 38.68 35.64 38.42 41.70 47.19 52.43 59.77 59.42 52.34 a 43.55 38.17 35.48 45.23
1954 27.35 34.46 32.35 41.90 48.94 52.47 57.06 57.60 a 51.70 40.23 41.40 30.10 42.96
1955 31.74 31.00 32.68 38.60 47.53 a 55.80 57.84 57.42 51.57 43.81 31.93 29.58 42.46
1956 30.16 24.75 a 36.87 43.87 52.29 54.00 61.23 60.26 53.03 43.48 35.40 33.65 44.08
1957 15.58 30.04 37.32 44.57 53.77 57.73 58.77 56.90 54.50 43.74 32.37 34.42 43.31
1958 33.65 39.21 35.29 42.43 53.61 61.10 64.00 63.26 53.93 43.26 36.47 35.00 46.77
1959 31.00 34.86 37.42 43.00 46.71 56.10 61.03 58.90 52.43 44.16 31.13 31.26 44.00
1960 23.61 32.21 35.61 43.30 46.87 55.83 62.39 58.39 51.43 44.74 36.20 30.19 43.40
1961 32.90 38.00 39.65 43.87 49.37 a 58.77 60.84 62.87 49.93 42.45 31.33 32.00 45.16
1962 27.48 33.43 34.61 44.63 47.26 53.10 59.19 59.06 52.13 44.58 39.93 35.07 a 44.21
1963 24.23 a 34.89 36.81 42.00 49.17 a 56.80 57.10 59.90 57.23 45.55 39.40 31.19 44.52
1964 33.81 32.62 35.97 41.47 46.32 54.30 60.39 56.97 50.00 41.65 36.20 27.77 43.12
1965 32.84 36.07 33.68 43.80 48.13 55.10 60.29 60.94 49.33 44.77 40.67 30.87 44.71
1966 32.00 34.75 35.77 43.30 48.35 53.90 59.10 60.00 a 54.10 42.74 39.20 34.74 44.83
1967 36.61 34.54 35.26 39.47 49.03 58.53 61.74 ----- z ----- z ----- z ----- z ----- z 45.03
1968 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1969 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1970 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1971 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1972 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1973 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1974 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1975 ----- z 30.64 35.61 38.33 46.74 53.66 a 61.55 53.84 46.80 41.10 32.00 a 31.16 42.86
1976 28.77 32.04 a 34.43 a 40.57 46.52 51.07 57.38 b 55.71 49.70 37.25 c 33.93 28.87 41.35
1977 25.55 34.07 36.81 43.27 46.45 58.55 a 60.10 a 64.26 51.07 a 41.07 b 33.10 35.07 b 44.11
1978 30.90 36.11 39.03 42.77 48.10 a 56.50 60.65 58.94 51.07 39.83 a 27.17 27.64 c 43.22
1979 13.32 30.14 36.81 44.57 51.29 56.50 61.10 59.55 53.27 46.87 35.48 a 35.06 43.66
1980 22.06 31.90 37.29 42.62 a 50.70 a 54.17 a 61.00 57.80 a 52.47 42.60 a 39.20 33.48 b 43.77
1981 37.84 32.81 a 37.67 a 42.55 a 50.59 b 54.79 a 59.13 61.07 a 51.66 a 41.16 36.97 34.19 45.04
1982 31.61 30.54 35.48 38.00 48.74 57.73 59.58 60.23 51.93 41.94 32.60 31.84 43.35
1983 33.81 36.57 41.87 41.73 51.10 54.40 58.58 60.45 48.93 40.90 41.17 23.45 44.41
1984 29.42 33.90 39.65 43.00 46.65 53.87 60.42 59.00 50.87 41.87 36.30 27.87 43.57
1985 29.45 27.82 34.10 42.60 47.10 54.60 63.94 55.77 46.43 40.35 26.13 21.48 40.82
1986 30.23 32.89 39.32 39.03 48.26 57.67 56.70 a 60.77 48.83 40.65 36.63 29.52 43.38
1987 27.13 33.36 37.94 43.90 51.90 56.57 61.10 59.19 53.17 41.71 37.77 32.32 44.67
1988 29.29 31.41 37.29 43.97 47.87 55.13 60.65 56.39 50.90 48.03 39.93 33.26 44.51
1989 33.48 22.43 35.74 44.63 48.84 56.53 58.94 59.52 51.03 43.52 39.87 33.45 44.00
1990 35.26 31.21 37.68 45.93 47.29 55.60 60.90 61.06 55.83 42.32 38.67 22.45 44.52
1991 27.48 35.79 35.26 41.97 47.71 52.73 61.29 61.61 52.30 41.45 38.63 35.39 44.30
1992 35.42 38.93 39.97 45.00 50.42 59.83 61.45 59.13 51.23 44.06 38.87 29.13 46.12
1993 23.26 27.54 35.48 42.87 51.23 54.33 55.77 57.29 50.40 44.16 27.23 33.81 41.95
1994 34.23 29.68 36.45 44.87 50.87 54.10 62.71 60.45 53.67 41.87 34.13 33.03 44.67
1995 30.32 34.50 36.10 41.10 50.61 ----- z 62.06 56.19 54.73 42.58 40.70 33.84 43.89
1996 30.94 25.38 36.10 42.90 46.39 ----- z 61.16 58.16 49.50 43.23 35.03 29.65 41.68
1997 28.71 33.18 36.94 41.30 49.55 51.90 56.97 59.42 53.90 42.26 37.67 33.94 43.81
1998 30.68 36.29 37.39 41.90 ----- z ----- z ----- z ----- z 54.83 40.84 39.20 28.90 38.75
1999 31.94 32.04 32.45 35.00 a 42.94 52.33 53.10 58.80 a 42.93 a 35.81 37.10 32.93 a 40.61
2000 28.26 31.14 32.40 a 39.07 46.77 51.66 a 55.81 54.45 b 46.67 ----- z ----- z 30.23 41.64
2001 30.26 28.82 33.81 36.97 ----- z ----- z 57.13 ----- z 50.86 a 39.94 35.43 32.77 38.44
2002 32.71 29.43 32.17 a 39.23 47.19 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 36.15
2003 36.81 31.11 38.55 40.10 45.87 54.13 59.03 57.68 50.20 43.42 29.55 a ----- z 44.22
2004 ----- z 31.59 36.67 a 39.03 a 47.90 52.67 59.00 59.81 ----- z 41.26 32.33 32.84 43.31
2005 30.29 24.44 a 34.39 39.30 48.61 51.52 a 57.68 55.84 46.52 a 41.68 32.90 a 25.94 40.76
2006 33.42 26.39 33.48 38.07 46.29 53.97 ----- z 55.69 e 47.87 39.42 33.87 29.32 39.80
2007 26.77 31.79 36.42 38.07 45.45 53.40 61.77 56.03 48.93 38.74 31.70 ----- z 42.64
2008 ----- z 32.03 ----- z 33.97 48.87 50.97 57.39 ----- z ----- z 35.29 36.53 ----- z 42.15
2009 ----- z ----- z 33.00 38.53 44.90 56.30 60.03 60.23 50.37 36.68 29.17 23.19 43.24
2010 33.39 33.32 33.35 39.03 44.81 51.83 57.10 56.84 50.97 41.13 33.53 31.61 42.24
2011 30.50 a 27.46 b 33.31 b 37.17 a 44.28 b 52.03 a 55.45 56.70 a 50.34 a 43.42 31.50 26.20 a 40.70
2012 26.45 31.63 b 33.28 b 40.17 a 44.86 c 51.66 a 58.80 a 57.39 47.82 b 39.57 a 38.50 31.58 41.81
2013 26.93 a 30.30 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 28.61
Period of Record Statistics
MEAN 28.37 31.25 35.97 41.27 47.69 54.01 58.85 57.64 50.24 41.94 35.04 30.83 42.80
S.D. 5.89 4.05 2.12 2.32 2.32 2.25 2.33 2.23 2.69 2.54 3.59 4.06 1.62
SKEW -1.20 -0.84 0.31 -0.40 0.18 0.40 0.01 0.30 -0.55 -0.33 -0.44 -1.20 -0.26
MAX 38.68 39.21 41.87 45.93 53.77 61.10 65.48 64.26 57.23 48.03 41.40 37.19 46.77
MIN 8.77 17.57 31.06 33.97 41.39 49.67 53.10 53.00 41.10 34.10 25.77 14.94 37.06
NO YRS 107 110 110 112 110 107 110 108 106 109 109 106 93