WALLA WALLA FAA AIRPORT, WASHINGTON

Monthly Average Maximum 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 43.74 43.74
1950 24.48 41.61 51.10 61.10 70.16 75.80 89.00 88.58 79.53 61.55 48.63 45.39 61.41
1951 40.58 45.89 50.50 a 66.80 72.19 78.67 89.97 85.87 79.40 60.97 47.87 36.26 62.91
1952 36.90 47.28 53.03 68.37 72.48 77.23 90.29 87.35 81.50 71.32 42.30 42.68 64.23
1953 53.10 49.07 55.13 60.77 68.23 72.33 89.45 85.45 82.10 66.94 53.40 47.55 65.29
1954 40.03 45.14 51.87 61.47 72.74 74.20 87.16 81.32 74.97 61.97 54.80 41.61 62.27
1955 38.55 44.07 48.74 56.43 65.61 80.87 83.90 88.26 77.83 63.43 a 41.23 40.00 60.74
1956 41.39 34.76 52.81 66.93 73.06 76.00 91.35 85.87 79.27 60.94 42.90 42.87 62.35
1957 26.16 43.61 51.68 63.97 72.39 79.70 85.48 83.00 80.77 57.10 50.57 47.94 61.86
1958 44.74 53.50 53.74 59.57 78.29 82.57 92.71 92.42 76.00 67.90 49.80 43.81 66.25
1959 44.00 43.96 55.13 64.13 67.68 79.13 90.81 83.50 a 72.10 64.32 47.73 39.81 62.69
1960 32.77 47.45 54.32 62.87 67.68 81.37 95.26 82.58 79.33 65.61 49.70 34.74 62.81
1961 43.81 53.11 55.52 61.43 69.87 87.10 92.39 92.77 73.30 62.03 44.60 42.00 64.83
1962 39.71 45.57 51.68 66.93 64.00 79.60 88.48 82.77 78.50 62.29 52.43 45.58 63.13
1963 34.97 48.25 56.87 59.10 72.06 78.83 83.52 87.58 82.90 68.48 51.40 36.13 a 63.34
1964 47.32 51.28 53.71 60.53 70.16 78.27 87.84 82.74 74.70 62.90 46.57 40.55 63.05
1965 41.61 51.04 55.90 66.57 71.35 80.87 91.13 87.03 75.20 71.19 53.33 45.10 65.86
1966 44.10 47.21 56.06 64.33 74.55 76.80 85.61 86.68 80.30 65.19 51.77 46.65 64.94
1967 48.77 51.71 53.23 56.30 69.65 83.97 92.39 96.32 84.50 66.81 50.13 43.58 66.45
1968 44.81 49.10 59.45 59.40 70.39 79.30 92.29 81.03 75.77 62.29 49.57 38.97 63.53
1969 28.87 40.57 55.13 61.73 74.39 83.87 87.29 85.97 78.07 59.97 51.50 39.90 62.27
1970 38.65 46.64 53.65 57.03 71.10 83.67 91.81 90.84 71.07 60.23 49.20 42.71 63.05
1971 45.90 47.14 50.94 60.40 71.23 71.73 91.45 93.26 71.37 61.03 50.37 42.06 63.07
1972 38.68 41.83 56.94 58.97 72.71 80.20 88.13 90.45 74.73 62.97 49.60 34.94 62.51
1973 39.10 45.07 56.10 64.60 76.10 80.67 92.61 87.00 75.77 63.26 47.53 45.74 64.46
1974 34.87 49.46 54.06 59.87 66.42 85.83 87.94 89.77 83.83 67.58 51.43 47.87 64.91
1975 41.77 43.89 51.94 59.17 72.00 78.13 92.45 83.42 83.37 63.81 51.80 44.26 63.83
1976 44.58 46.86 52.13 60.00 71.71 76.40 89.52 82.32 82.73 66.58 49.23 42.45 63.71
1977 29.26 50.29 53.61 71.13 67.61 86.03 87.03 92.23 72.57 64.39 49.90 40.90 63.75
1978 37.23 45.25 56.26 57.67 66.10 82.13 89.65 84.13 74.27 67.87 43.17 38.32 61.84
1979 25.45 47.11 59.16 63.87 74.65 81.73 90.81 86.13 82.40 68.29 43.53 46.68 64.15
1980 33.10 43.48 50.90 66.60 68.90 72.93 87.35 82.13 77.23 63.03 49.77 46.35 61.82
1981 41.19 46.50 56.97 63.33 68.00 75.23 88.10 95.26 82.20 65.06 53.13 43.16 64.85
1982 41.77 48.39 54.77 60.07 70.58 82.77 88.77 88.19 76.23 63.26 45.40 42.19 63.53
1983 49.77 52.00 57.68 63.53 74.00 76.50 83.94 89.55 72.83 63.90 53.70 29.61 63.92
1984 40.29 47.59 57.03 60.17 68.45 77.47 94.00 90.29 73.70 61.45 49.70 34.81 62.91
1985 29.06 43.00 55.39 67.50 75.10 83.23 98.48 85.16 70.70 63.00 32.47 23.97 60.59
1986 42.19 45.36 57.90 61.17 70.42 85.20 82.74 93.77 71.03 67.32 48.80 35.26 63.43
1987 36.97 46.29 57.29 68.47 74.77 85.77 84.97 88.68 83.17 68.84 50.00 39.81 65.42
1988 38.35 51.31 55.65 64.40 71.58 78.67 89.81 88.45 78.70 72.06 51.47 37.77 64.85
1989 42.65 30.89 49.00 65.07 69.10 82.33 88.06 83.45 80.60 64.35 52.40 38.00 62.16
1990 44.68 45.07 57.32 67.60 68.19 78.80 93.10 87.48 85.87 62.42 53.80 34.10 64.87
1991 37.35 53.96 53.06 61.83 65.81 73.50 89.32 91.81 82.93 65.23 47.90 41.55 63.69
1992 46.06 49.76 60.84 65.73 79.23 87.47 87.13 89.23 75.17 65.74 45.67 38.13 65.85
1993 31.77 a 35.46 51.90 61.03 74.52 76.67 80.00 85.13 81.77 67.84 45.40 41.90 61.12
1994 48.58 43.43 60.32 67.60 75.10 81.80 94.61 90.71 84.23 64.23 48.93 43.77 66.94
1995 41.90 50.55 f ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 41.90
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 54.65 60.87 67.16 77.47 87.13 88.13 78.50 64.23 54.04 b 42.90 67.51
2000 40.55 45.48 53.84 66.70 70.06 79.70 88.33 a 87.13 74.07 60.81 41.73 35.43 a 61.99
2001 36.97 42.71 55.23 58.23 73.32 75.50 ----- z ----- z ----- z ----- z ----- z ----- z 56.99
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 44.03 45.93 55.81 55.53 k 66.03 74.70 85.59 b 89.38 b 83.37 62.87 51.53 39.65 63.53
2012 45.07 a 44.66 54.48 64.45 a 69.55 74.33 89.87 91.16 81.13 64.26 51.57 47.13 64.80
2013 36.19 48.96 56.90 71.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 47.35
Period of Record Statistics
MEAN 39.62 46.16 54.65 62.77 70.93 79.46 89.16 87.59 78.20 64.47 48.84 40.93 63.58
S.D. 6.37 4.52 2.73 3.58 3.34 4.00 3.50 3.78 4.25 3.15 4.20 4.85 1.53
SKEW -0.52 -1.02 0.03 0.19 0.20 0.11 -0.05 0.23 -0.11 0.40 -1.45 -1.03 0.13
MAX 53.10 53.96 60.84 71.13 79.23 87.47 98.48 96.32 85.87 72.06 54.80 47.94 66.94
MIN 24.48 30.89 48.74 56.30 64.00 71.73 80.00 81.03 70.70 57.10 32.47 23.97 60.59
NO YRS 51 50 51 49 50 50 49 49 49 49 49 50 47