WALLA WALLA FAA AIRPORT, WASHINGTON

Monthly Precipitation - Daily Extreme (inches)

(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 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.51 a 0.51
1950 0.36 0.63 0.46 0.35 0.26 1.50 0.12 0.32 0.11 1.38 0.71 0.52 1.50
1951 0.78 0.45 0.43 a 0.50 0.39 1.10 0.36 0.06 0.60 0.74 0.26 0.27 1.10
1952 0.26 0.81 0.32 0.41 0.38 1.03 0.00 0.00 0.28 0.02 0.31 0.34 1.03
1953 0.76 0.45 0.34 0.63 0.71 0.74 0.00 0.51 0.44 0.92 0.78 0.79 0.92
1954 0.64 0.25 0.47 0.35 0.26 0.57 0.07 0.34 0.34 0.97 0.52 1.02 1.02
1955 0.36 0.18 0.40 0.57 1.06 0.21 0.27 0.00 0.86 1.09 0.97 0.33 1.09
1956 1.22 0.51 0.48 0.14 0.78 0.37 0.37 0.72 0.18 0.58 0.44 1.11 1.22
1957 0.24 0.45 0.79 0.18 0.85 0.55 0.01 0.24 0.55 1.25 0.71 0.55 1.25
1958 0.65 0.55 0.35 0.54 1.21 0.46 0.00 0.00 0.17 0.24 0.43 0.73 1.21
1959 1.01 0.73 0.61 0.46 0.78 0.83 0.10 0.06 a 0.70 0.34 0.32 0.28 1.01
1960 0.54 0.47 0.45 0.27 0.92 0.67 0.00 0.78 0.71 0.80 0.76 0.31 0.92
1961 0.35 0.70 0.56 0.78 0.96 0.50 0.00 0.43 0.15 0.69 0.64 0.67 0.96
1962 0.32 0.33 0.68 0.71 0.92 0.19 0.00 0.36 1.34 0.91 0.70 1.18 1.34
1963 0.39 0.40 0.31 0.63 0.43 0.13 0.46 0.17 0.24 0.47 0.82 0.37 0.82
1964 0.50 0.18 0.22 0.20 0.18 0.40 1.00 0.18 0.44 0.24 1.09 0.91 1.09
1965 0.58 0.21 0.31 0.54 0.62 0.82 0.41 1.39 0.21 0.33 0.38 0.09 1.39
1966 0.81 0.37 0.58 0.13 0.18 0.58 0.90 0.20 0.10 0.31 0.79 0.70 0.90
1967 0.46 0.21 0.76 0.40 0.73 0.26 0.00 0.00 0.49 0.94 0.38 0.27 0.94
1968 0.31 0.56 0.83 0.38 0.27 0.49 0.28 0.30 0.58 0.66 0.91 0.77 0.91
1969 0.62 0.26 0.24 1.06 0.58 0.41 0.00 0.00 0.24 0.43 0.56 0.55 1.06
1970 0.87 1.20 0.43 1.36 0.21 0.47 0.14 0.16 1.04 0.57 0.76 0.22 1.36
1971 0.72 0.30 0.39 0.48 1.70 0.99 0.64 0.11 0.94 0.51 1.12 1.39 1.70
1972 0.41 0.31 0.75 0.40 0.99 0.43 0.28 0.27 0.66 0.50 0.28 0.52 0.99
1973 0.38 0.78 0.23 0.32 0.64 0.28 0.08 0.14 0.52 1.25 0.63 1.09 1.25
1974 0.51 0.40 0.58 1.00 0.41 0.30 0.48 0.00 0.01 0.24 0.62 0.90 1.00
1975 1.22 0.30 0.23 0.43 0.23 0.25 0.26 0.52 0.00 0.71 0.54 0.80 1.22
1976 0.47 0.74 0.67 0.54 0.35 0.26 0.27 0.31 0.02 1.09 0.35 0.27 1.09
1977 0.26 0.51 0.31 0.09 0.43 0.30 0.22 0.97 0.38 0.17 0.55 1.04 1.04
1978 0.26 0.30 0.44 1.26 0.36 0.11 0.29 1.16 0.32 0.03 0.51 0.72 1.26
1979 0.39 0.51 0.58 0.55 0.26 0.30 0.03 0.59 0.21 0.80 0.79 0.52 0.80
1980 0.58 0.27 0.50 0.23 1.30 0.60 0.11 0.30 0.89 1.19 0.94 0.90 1.30
1981 0.49 0.74 0.89 0.77 0.87 0.85 0.83 0.03 0.49 0.57 0.83 1.05 1.05
1982 0.76 1.07 0.47 0.71 0.19 0.21 0.40 0.54 0.62 1.14 0.62 0.40 1.14
1983 0.83 1.08 1.36 0.53 0.51 0.89 0.85 0.34 0.48 0.74 0.71 0.49 1.36
1984 0.19 0.61 0.94 0.32 0.48 0.76 0.00 0.23 0.62 0.77 1.23 0.68 1.23
1985 0.44 0.80 0.67 0.31 0.33 0.39 0.39 a 1.38 0.40 0.73 0.54 0.37 1.38
1986 0.34 0.74 0.62 0.26 1.21 0.22 0.41 0.32 0.61 0.60 0.91 0.25 1.21
1987 0.72 0.31 0.34 0.72 0.52 0.24 0.52 0.16 0.09 0.01 0.31 0.58 0.72
1988 0.86 0.79 0.73 0.93 1.23 0.21 0.10 0.00 0.23 0.09 0.66 0.31 1.23
1989 1.05 0.29 0.77 0.73 0.73 0.17 0.02 0.57 0.31 0.46 0.92 1.14 1.14
1990 0.43 0.19 0.79 1.62 0.78 0.23 0.14 0.90 0.00 0.99 0.65 0.62 1.62
1991 0.30 0.29 0.90 0.42 1.49 1.14 0.87 0.08 0.00 0.61 1.04 0.98 1.49
1992 0.49 0.30 0.19 0.58 0.15 0.43 3.64 2.29 0.62 0.59 1.30 0.23 3.64
1993 0.59 0.42 0.60 1.03 1.03 1.09 0.56 1.54 0.03 0.53 0.22 0.59 1.54
1994 1.31 0.85 0.25 0.26 1.00 0.43 0.51 0.00 0.27 1.56 1.50 0.57 1.56
1995 0.45 0.34 f 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.45
1996 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
1997 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
1998 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
1999 9999.00 z 9999.00 z 0.32 0.42 0.49 0.23 0.01 0.31 0.00 0.63 0.53 0.54 0.63
2000 0.44 0.87 0.71 0.29 1.37 0.62 0.11 0.00 0.66 0.71 1.07 0.45 1.37
2001 0.45 0.51 0.35 0.56 0.69 0.34 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.69
2002 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2003 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2004 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2005 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2006 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2007 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2008 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2009 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2010 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
2011 0.31 0.98 0.42 0.70 k 1.37 1.14 0.15 0.03 a 0.02 0.44 a 0.21 b 0.53 1.37
2012 0.60 0.38 a 0.67 0.98 a 0.43 a 0.93 0.23 0.01 0.00 0.56 0.60 0.56 0.98
2013 0.50 0.26 0.32 0.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.50
Period of Record Statistics
MEAN 0.56 0.52 0.53 0.56 0.68 0.53 0.34 0.39 0.39 0.66 0.68 0.62 1.22
S.D. 0.27 0.26 0.23 0.33 0.40 0.33 0.55 0.48 0.31 0.36 0.29 0.30 0.43
SKEW 1.06 0.74 0.94 1.17 0.60 0.90 4.47 1.95 0.72 0.30 0.54 0.51 4.00
MAX 1.31 1.20 1.36 1.62 1.70 1.50 3.64 2.29 1.34 1.56 1.50 1.39 3.64
MIN 0.19 0.18 0.19 0.09 0.15 0.11 0.00 0.00 0.00 0.01 0.21 0.09 0.72
NO YRS 51 50 51 49 50 50 49 49 49 49 49 50 47