WALLA WALLA WB CITY, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(458931)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198712
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
1916 ----- z ----- z ----- z ----- z ----- z 50.27 55.65 57.26 50.13 38.16 29.56 n ----- z 50.29
1917 ----- z ----- z 33.94 n 39.97 46.32 50.37 59.00 58.48 53.20 41.29 ----- z ----- z 49.80
1918 ----- z ----- z ----- z 38.43 43.29 55.73 58.68 56.13 52.80 44.87 ----- z ----- z 49.99
1919 ----- z ----- z 36.26 40.63 45.19 49.33 58.97 58.35 48.07 38.19 ----- z ----- z 46.88
1920 ----- z ----- z 36.03 38.17 43.61 50.80 59.84 58.26 50.63 40.94 ----- z ----- z 47.28
1921 ----- z ----- z 37.42 38.63 45.32 55.77 56.87 58.26 46.50 42.29 ----- z ----- z 47.63
1922 ----- z ----- z 33.03 38.27 44.10 57.07 61.55 59.58 52.67 43.16 ----- z ----- z 48.68
1923 ----- z ----- z 34.81 40.37 46.81 51.63 59.81 59.35 51.03 40.87 ----- z ----- z 48.08
1924 ----- z ----- z 33.10 38.30 48.35 53.70 59.94 57.06 50.13 42.71 ----- z ----- z 47.91
1925 ----- z ----- z 36.06 42.37 48.42 54.90 61.55 57.74 51.10 39.65 ----- z ----- z 48.97
1926 ----- z ----- z 36.65 43.57 47.00 55.10 61.55 57.90 45.00 42.68 ----- z ----- z 48.68
1927 ----- z ----- z 34.13 36.83 43.19 54.43 58.81 58.71 50.93 44.45 ----- z ----- z 47.69
1928 ----- z ----- z 37.65 39.10 47.74 52.57 ----- z 58.19 50.73 42.61 ----- z ----- z 46.94
1929 ----- z ----- z 36.29 37.87 45.74 52.07 56.45 59.87 47.63 41.39 ----- z ----- z 47.16
1930 ----- z ----- z 36.74 44.57 46.68 50.30 59.97 59.74 51.63 39.42 ----- z ----- z 48.63
1931 ----- z ----- z ----- z ----- z ----- z ----- z ----- 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 56.07 ----- z 59.39 51.53 41.65 36.90 26.10 45.27
1949 11.06 28.46 36.58 44.23 53.68 55.03 61.16 61.68 54.57 41.19 40.83 32.52 43.42
1950 9.81 28.14 37.06 40.47 47.32 55.57 62.26 62.58 54.37 45.94 37.20 35.77 43.04
1951 29.68 32.00 34.06 42.33 49.03 55.60 63.35 61.39 53.87 44.39 35.53 25.39 43.89
1952 25.10 33.62 37.55 43.90 51.06 54.43 62.52 61.55 56.13 48.65 30.40 33.29 44.85
1953 42.29 36.75 39.61 43.03 47.94 52.90 61.42 61.94 55.73 46.58 39.37 36.39 47.00
1954 29.03 36.14 33.65 42.50 50.10 52.33 60.16 58.90 52.97 42.45 42.67 30.39 44.27
1955 29.39 31.11 32.00 39.37 45.84 56.03 59.90 60.45 52.73 45.48 28.17 27.52 42.33
1956 28.26 21.90 37.26 44.50 51.26 53.37 64.58 60.74 53.70 44.19 33.30 32.29 43.78
1957 14.87 31.43 37.45 44.53 53.42 57.17 60.77 59.45 55.33 43.42 34.20 36.13 44.01
1958 34.48 40.82 35.81 42.77 54.55 58.90 65.03 65.84 53.40 43.90 36.77 32.65 47.08
1959 30.26 33.32 38.84 43.23 46.26 56.63 62.23 59.16 52.63 45.26 30.70 30.29 44.07
1960 21.00 32.48 37.06 43.87 47.87 55.03 65.97 59.42 53.50 45.87 37.53 27.45 43.92
1961 32.74 40.25 40.77 42.73 48.97 59.53 65.06 66.06 50.47 42.48 29.20 32.03 45.86
1962 27.16 32.32 35.23 44.70 47.16 54.33 61.52 59.58 53.77 45.94 39.63 34.77 44.68
1963 22.10 34.64 39.00 42.60 50.06 56.57 59.03 62.06 57.83 48.10 39.63 29.48 45.09
1964 35.42 33.86 36.32 40.57 47.61 55.33 60.45 57.87 51.47 43.10 35.87 26.03 43.66
1965 31.52 35.82 33.68 45.37 47.87 54.87 62.84 62.03 50.10 48.26 39.90 32.03 45.36
1966 33.29 34.21 38.16 43.17 49.13 54.20 60.06 61.13 57.53 44.32 39.10 36.48 45.90
1967 38.52 37.07 37.58 39.77 48.97 58.50 64.58 66.55 58.37 46.61 36.30 32.32 47.09
1968 32.16 37.34 41.13 40.80 49.74 56.27 63.71 59.97 54.63 43.23 37.30 26.77 45.25
1969 18.55 29.96 37.45 42.50 51.74 59.17 60.84 58.71 55.27 41.65 36.97 31.68 43.71
1970 29.55 36.25 37.48 39.23 49.87 59.40 64.16 62.39 49.77 42.74 35.50 31.48 44.82
1971 35.90 34.39 35.45 40.70 49.29 53.30 62.61 65.74 48.83 41.90 38.10 30.81 44.75
1972 27.90 31.24 40.52 38.80 50.61 57.03 61.45 62.68 50.37 42.84 36.47 24.03 43.66
1973 26.32 32.71 39.94 41.93 50.45 55.97 62.61 61.39 53.40 44.94 37.03 36.39 45.26
1974 26.52 37.00 38.58 43.13 47.84 57.73 60.97 61.71 53.10 43.13 39.13 34.90 45.31
1975 29.90 30.57 35.71 38.87 48.00 53.40 64.81 57.77 52.03 46.39 36.77 33.94 44.01
1976 32.84 33.76 34.35 40.63 47.16 51.27 60.84 58.26 55.13 42.48 37.27 29.65 43.64
1977 22.32 36.32 37.48 44.57 46.35 58.70 59.87 64.32 52.03 43.61 35.07 32.77 44.45
1978 30.03 36.11 40.42 43.10 48.10 56.73 61.39 60.10 52.87 42.29 29.07 25.84 43.84
1979 13.45 33.04 38.61 43.87 50.90 55.97 62.65 62.03 55.87 47.87 32.40 34.61 44.27
1980 22.45 31.90 37.71 45.50 50.29 52.87 61.32 57.16 53.90 43.42 38.10 34.32 44.08
1981 34.55 33.86 39.10 44.00 49.16 53.87 59.23 63.71 54.47 43.39 38.17 32.32 45.48
1982 28.81 33.46 37.65 39.63 48.03 59.07 61.03 62.35 52.23 43.32 32.87 32.61 44.26
1983 36.06 38.57 41.19 41.40 50.84 54.57 59.35 63.87 49.93 44.29 41.67 19.97 45.14
1984 29.84 34.90 41.16 42.17 47.06 54.03 61.71 62.03 50.97 41.52 37.03 24.42 43.90
1985 24.58 27.64 36.10 45.30 50.55 55.73 66.52 58.61 49.57 43.42 23.40 18.39 41.65
1986 30.58 34.11 42.61 42.43 50.45 60.17 58.84 65.29 51.83 44.52 38.43 29.10 45.70
1987 26.61 33.64 41.61 47.07 52.29 57.87 60.10 59.68 55.20 43.61 38.13 30.00 45.48
Period of Record Statistics
MEAN 27.82 33.62 37.26 41.82 48.46 55.08 61.24 60.55 52.43 43.47 36.05 30.58 44.56
S.D. 7.22 3.56 2.44 2.42 2.54 2.62 2.31 2.54 2.71 2.32 3.98 4.38 1.17
SKEW -0.73 -0.72 0.09 -0.11 0.07 -0.15 0.11 0.64 -0.22 0.10 -1.13 -0.86 0.16
MAX 42.29 40.82 42.61 47.07 54.55 60.17 66.52 66.55 58.37 48.65 42.67 36.48 47.09
MIN 9.81 21.90 32.00 36.83 43.19 49.33 55.65 56.13 45.00 38.16 23.40 18.39 41.65
NO YRS 39 39 51 53 53 55 53 55 55 55 40 40 39