WALLA WALLA 13 ESE, OREGON

Monthly Average Temperature (Degrees Fahrenheit)

(358985)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199011
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
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 62.16 54.90 44.35 a 33.34 b 24.37 a 43.82
1949 13.81 b 28.96 37.39 48.02 a 54.97 a 57.25 62.77 62.19 b 56.02 a 41.94 38.90 a 30.28 a 44.37
1950 14.21 29.05 35.18 ----- z 47.52 56.76 a 65.48 64.74 56.93 48.15 a 37.25 37.08 a 44.76
1951 28.85 34.02 39.00 49.35 53.52 56.90 a 64.39 63.10 57.58 45.48 36.07 27.63 46.32
1952 26.18 33.34 37.47 49.76 a 54.24 57.90 e 65.32 c 63.76 59.23 51.48 30.97 31.45 46.76
1953 38.74 35.05 39.23 45.07 a 50.11 53.66 a 64.29 63.37 59.48 48.90 41.12 34.27 47.77
1954 29.57 a 34.21 36.37 45.42 54.32 c 54.92 64.87 60.02 55.37 46.06 41.13 30.40 46.06
1955 29.67 a 32.02 b 33.08 41.33 50.03 a 59.59 a 62.98 a 63.47 a 56.12 48.03 a 30.48 29.29 44.67
1956 30.63 26.95 37.40 a 48.52 55.31 57.16 a 67.63 64.66 58.17 a 46.31 32.28 a 32.37 46.45
1957 17.17 a 31.89 39.00 46.38 55.37 59.93 63.61 60.53 58.70 45.24 34.32 35.35 45.63
1958 32.40 41.50 38.87 44.02 58.00 62.33 67.47 67.32 55.93 48.56 36.53 o 35.81 50.20
1959 32.18 33.20 39.50 47.03 49.98 59.23 65.74 60.90 54.62 47.47 33.88 30.90 46.22
1960 25.85 33.48 39.53 47.42 51.26 59.17 67.87 61.00 57.30 47.95 37.27 28.50 46.38
1961 31.81 38.98 40.52 45.77 52.79 64.02 66.69 68.77 53.38 45.89 32.93 31.77 47.78
1962 29.39 34.55 38.24 49.37 49.53 58.00 63.02 61.71 56.97 46.97 39.15 34.63 46.79
1963 23.82 37.98 40.87 43.87 53.52 a 58.42 61.24 64.24 61.85 50.53 38.90 30.19 47.12
1964 33.06 33.98 37.37 43.62 50.72 a 57.77 63.82 60.42 54.95 47.32 35.38 29.19 45.63
1965 32.00 35.70 37.52 47.90 51.48 59.03 65.69 64.39 52.98 51.45 40.82 31.10 47.50
1966 32.00 33.18 38.85 46.98 54.48 57.00 62.58 63.40 60.30 47.29 39.70 36.08 47.65
1967 35.81 37.41 38.79 41.38 52.65 61.45 66.66 69.07 a 62.20 c 48.75 a 37.30 30.87 a 48.53
1968 32.40 38.23 a 43.90 44.00 a 52.65 59.53 67.03 a 61.32 56.40 45.40 37.55 a 29.66 47.34
1969 21.10 a 32.48 38.35 a 46.21 b 55.82 a 63.58 64.65 64.43 b 59.38 44.22 b 36.41 b 31.38 a 46.50
1970 30.08 36.87 a 38.89 40.57 b 53.26 64.02 a 67.33 a 65.36 b 52.68 b 45.83 a 37.92 31.19 47.00
1971 33.60 35.68 36.15 45.32 53.74 56.00 65.57 c 68.14 b 52.58 43.85 a 37.63 30.66 46.58
1972 29.65 33.03 43.56 43.74 c 55.13 60.60 62.69 e 66.31 53.62 45.98 a 38.52 26.55 46.61
1973 28.74 35.11 40.98 45.38 a 55.81 b 59.34 e 66.37 e 63.85 57.10 46.55 35.20 35.15 47.46
1974 25.73 36.25 40.31 45.52 b 50.39 62.25 64.21 64.53 58.68 k 48.32 a 39.52 34.47 46.50
1975 30.97 31.46 a 36.88 a 41.03 52.12 a 57.43 a 64.25 z 62.76 b 58.40 48.18 36.52 35.72 o 45.57
1976 ----- z 38.92 q ----- z ----- z ----- z ----- z 67.67 p 62.48 f 61.25 d ----- z 38.70 b 31.37 43.77
1977 24.40 36.64 37.95 50.25 49.83 d 63.23 63.95 67.29 54.50 ----- z ----- z 31.58 e 47.96
1978 32.16 35.92 i 42.59 b 46.02 a 51.03 ----- z ----- z ----- z ----- z ----- z 30.76 g ----- z 42.95
1979 ----- z ----- z ----- z ----- z 53.73 61.25 67.25 a 64.77 61.42 49.48 32.20 35.02 53.14
1980 25.19 34.40 39.05 50.10 52.26 57.98 a 65.55 60.84 56.57 49.19 37.40 32.38 o 48.05
1981 25.42 k 36.35 b 44.13 h 44.80 ----- z ----- z ----- z 67.52 c 57.55 45.92 39.67 33.90 46.53
1982 31.24 32.59 39.76 44.25 52.90 61.88 62.98 65.85 56.85 46.94 33.33 31.16 46.65
1983 35.82 39.05 43.69 45.92 54.52 58.53 62.92 67.08 55.32 48.10 b ----- z ----- z 51.10
1984 36.58 y 34.52 41.58 44.92 50.26 56.78 65.16 65.47 55.02 44.16 37.35 27.26 47.50
1985 23.03 29.79 37.03 48.33 54.37 59.87 68.66 61.97 51.93 45.52 25.12 20.62 a 43.85
1986 33.69 34.23 44.85 ----- z ----- z ----- z ----- z ----- z ----- z 48.11 36.40 29.66 37.83
1987 27.73 34.93 41.77 52.38 55.82 62.12 63.68 63.58 60.53 49.27 39.25 31.18 48.52
1988 26.00 j 36.10 41.13 48.77 53.39 59.70 66.15 65.56 59.43 54.10 37.90 30.89 50.28
1989 32.29 23.54 40.19 b 49.82 52.74 61.37 65.03 63.10 58.13 47.50 39.13 30.82 46.97
1990 34.63 31.93 42.60 50.87 52.82 59.42 68.48 66.27 62.67 46.02 40.73 ----- z 50.58
Period of Record Statistics
MEAN 28.91 34.07 39.37 46.30 52.88 59.35 65.13 64.13 57.11 47.27 36.61 31.16 46.63
S.D. 5.66 3.42 2.52 2.88 2.22 2.51 1.87 2.42 2.83 2.32 3.40 3.29 1.12
SKEW -1.07 -0.68 0.11 -0.06 -0.16 0.06 0.05 0.20 0.15 0.46 -1.17 -0.75 -0.68
MAX 38.74 41.50 44.85 52.38 58.00 64.02 68.66 69.07 62.67 54.10 41.13 37.08 48.53
MIN 13.81 23.54 33.08 40.57 47.52 53.66 61.24 60.02 51.93 41.94 25.12 20.62 43.85
NO YRS 37 39 39 38 39 38 37 40 40 40 39 38 27