WALLA WALLA FAA AIRPORT, WASHINGTON

Monthly Average Temperature (Degrees Fahrenheit)

(458928)

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
1949 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.34 37.34
1950 16.50 34.29 43.00 49.92 57.77 64.90 74.48 74.32 66.20 53.08 42.33 39.97 51.40
1951 34.21 38.36 41.48 a 53.28 59.48 65.95 75.23 72.39 65.65 51.81 41.00 30.00 52.40
1952 30.02 39.55 44.31 55.05 60.42 64.80 75.31 73.53 67.93 58.66 34.90 36.56 53.42
1953 46.13 41.23 45.73 50.33 56.56 60.95 73.94 72.27 67.48 55.35 45.17 40.60 54.65
1954 33.26 39.27 40.87 50.32 59.61 61.75 72.26 68.66 62.63 50.87 47.35 34.92 51.81
1955 33.10 36.09 38.90 46.55 54.61 67.07 70.84 72.89 64.60 53.52 a 33.68 33.00 50.40
1956 34.23 27.31 43.81 54.43 61.52 63.38 76.63 72.16 65.58 51.61 37.00 36.60 52.02
1957 19.34 36.41 43.58 53.03 61.73 67.30 72.03 69.98 67.15 49.29 41.48 40.94 51.86
1958 38.65 46.29 43.74 50.05 65.27 69.95 77.89 77.85 63.75 55.27 42.28 37.76 55.73
1959 36.24 37.57 45.58 52.42 55.85 66.65 75.55 70.52 a 61.63 53.77 38.03 34.23 52.34
1960 25.89 39.05 44.82 52.30 56.44 66.87 79.37 69.84 65.58 55.02 42.65 30.26 52.34
1961 37.63 45.71 47.08 50.90 58.34 72.22 77.90 78.44 61.02 51.26 35.72 35.89 54.34
1962 32.35 38.04 42.71 54.42 54.55 65.75 73.71 70.23 65.12 53.21 45.30 39.37 52.90
1963 27.40 40.95 46.73 49.65 59.84 66.23 70.42 74.15 70.03 57.71 44.72 32.47 a 53.36
1964 40.87 42.17 44.87 49.70 57.55 65.80 73.34 69.47 61.40 50.68 40.65 33.03 52.46
1965 36.35 42.91 43.92 55.38 58.55 67.23 76.48 74.32 62.58 58.97 46.15 38.24 55.09
1966 38.21 39.96 46.06 52.53 60.98 64.63 72.03 73.05 67.93 53.74 44.67 40.61 54.54
1967 42.77 43.27 44.27 46.95 57.95 69.75 77.13 80.10 70.73 55.77 42.17 36.85 55.64
1968 37.89 42.71 49.06 49.17 58.76 66.53 77.42 70.71 65.15 53.31 43.97 32.74 53.95
1969 22.97 35.46 46.02 51.95 62.31 70.92 73.76 72.32 66.70 50.66 43.83 35.90 52.73
1970 33.98 41.54 45.15 47.72 60.10 71.07 77.21 75.97 60.08 50.95 42.20 36.82 53.56
1971 40.15 40.16 42.65 49.58 59.24 61.17 75.15 78.05 59.02 50.50 43.48 36.39 52.96
1972 32.52 36.05 48.34 48.27 60.94 67.73 73.82 76.05 62.23 52.71 42.95 28.63 52.52
1973 32.15 38.86 47.65 52.75 63.02 68.48 77.16 73.94 64.85 54.06 42.00 40.90 54.65
1974 29.44 43.04 45.76 51.12 56.24 71.17 73.66 76.90 69.65 55.89 45.37 41.63 54.99
1975 35.98 37.61 44.05 49.10 60.29 66.47 79.23 70.74 67.88 55.05 43.83 38.87 54.09
1976 38.66 39.38 42.71 49.58 58.21 62.97 74.85 70.32 69.00 54.55 43.40 36.16 53.32
1977 25.53 43.07 45.13 57.23 56.92 72.42 73.76 79.37 62.88 54.16 42.25 36.47 54.10
1978 33.18 39.84 46.95 48.82 55.27 67.78 74.82 72.58 64.13 55.15 35.45 32.03 52.17
1979 20.15 40.43 48.66 53.15 62.23 69.02 76.23 73.89 68.35 57.69 38.47 40.58 54.07
1980 28.00 37.86 43.77 56.00 59.37 62.73 74.19 70.00 65.52 53.35 44.22 40.47 52.96
1981 37.92 39.89 47.73 53.08 58.55 64.80 73.89 79.92 68.92 55.10 45.77 37.89 55.29
1982 35.29 41.52 46.56 49.75 59.02 70.87 74.66 75.55 64.70 53.55 39.60 37.98 54.09
1983 43.06 45.41 49.71 52.60 62.08 65.48 71.39 76.56 61.37 54.15 47.67 24.42 54.49
1984 35.35 41.79 49.26 51.35 58.08 66.32 78.56 76.06 61.90 51.61 44.02 29.94 53.69
1985 26.85 35.02 45.34 56.12 62.55 68.93 82.31 71.94 59.82 52.87 27.03 20.60 50.78
1986 35.74 39.09 49.45 50.93 59.37 71.22 70.00 78.97 60.67 55.63 43.17 31.79 53.84
1987 31.10 39.89 48.48 56.95 62.39 70.45 71.56 73.39 68.57 55.32 42.32 33.74 54.51
1988 32.90 41.98 45.63 53.92 59.39 66.48 75.24 73.66 65.22 59.68 45.28 32.74 54.34
1989 36.85 24.09 41.53 53.92 57.82 68.05 73.27 71.13 66.17 53.77 45.25 33.92 52.15
1990 39.97 38.05 47.19 56.50 57.81 66.78 77.92 75.08 71.50 52.61 46.68 26.29 54.70
1991 31.68 45.68 43.95 51.13 55.63 61.63 73.61 76.79 67.30 53.58 42.15 37.35 53.37
1992 40.42 42.97 50.39 55.20 64.18 72.95 74.03 75.03 63.20 55.23 40.65 32.58 55.57
1993 24.73 a 29.80 43.47 51.45 62.35 64.62 67.73 70.92 66.53 55.97 36.08 36.98 50.89
1994 42.31 36.98 49.10 56.92 63.76 68.37 79.85 76.24 70.50 54.35 42.77 38.32 56.62
1995 36.60 43.73 f ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 36.60
1996 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1997 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1998 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1999 ----- z ----- z 45.71 49.72 a 55.63 65.17 72.50 a 75.06 64.07 52.15 a 46.23 b 38.37 56.46
2000 36.03 39.60 44.90 a 55.17 59.50 66.78 74.37 a 73.82 62.88 51.56 35.70 31.53 a 52.65
2001 33.40 36.57 45.89 49.07 60.42 63.65 ----- z ----- z ----- z ----- z ----- z ----- z 48.17
2002 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2003 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2004 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2005 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2006 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2007 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2008 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2009 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2010 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2011 37.73 38.39 46.89 46.92 k 56.00 63.98 71.62 c 75.76 b 69.83 54.66 43.18 33.63 53.79
2012 36.93 a 38.59 45.47 53.57 a 58.27 63.55 75.31 76.13 67.28 54.39 45.85 41.77 54.76
2013 32.65 42.48 48.61 59.75 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 41.25
Period of Record Statistics
MEAN 33.75 39.24 45.54 52.02 59.25 66.79 74.77 74.02 65.36 53.96 41.96 35.32 53.50
S.D. 6.25 4.24 2.49 2.78 2.59 3.06 2.82 2.99 3.18 2.27 4.10 4.53 1.41
SKEW -0.71 -1.31 -0.18 0.13 0.19 0.11 0.16 0.20 -0.05 0.38 -1.36 -0.97 -0.13
MAX 46.13 46.29 50.39 57.23 65.27 72.95 82.31 80.10 71.50 59.68 47.67 41.77 56.62
MIN 16.50 24.09 38.90 46.55 54.55 60.95 67.73 68.66 59.02 49.29 27.03 20.60 50.40
NO YRS 51 50 51 49 50 50 49 49 49 49 49 50 47