WALLA WALLA FAA AIRPORT, WASHINGTON

Monthly Precipitation - Daily Extreme (inches)

(458928)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200106
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 0.88 0.72 0.70 0.06 j 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.88
Period of Record Statistics
MEAN 0.57 0.51 0.53 0.56 0.68 0.52 0.35 0.41 0.41 0.66 0.69 0.62 1.23
S.D. 0.27 0.26 0.24 0.33 0.39 0.32 0.56 0.48 0.31 0.37 0.29 0.31 0.43
SKEW 1.01 0.74 0.92 1.19 0.61 1.01 4.37 1.90 0.71 0.25 0.55 0.48 3.96
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 0.22 0.09 0.72
NO YRS 48 47 48 49 49 49 47 47 47 47 47 48 46