WALLA WALLA 13 ESE, OREGON

Monthly Precipitation - Daily Extreme (inches)

(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 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.10 0.33 0.75 a 1.30 b 1.80 a 1.80
1949 0.56 1.35 0.50 0.28 1.10 a 0.29 0.09 0.25 1.30 1.67 0.75 1.51 1.67
1950 1.00 1.63 1.60 9999.00 z 1.35 1.81 0.11 0.41 1.07 1.45 1.26 1.03 1.81
1951 1.27 1.50 0.96 g 0.45 0.44 1.83 0.58 0.00 0.89 1.88 1.40 1.12 1.88
1952 0.50 0.72 0.88 1.10 0.91 1.10 0.39 0.00 0.47 0.16 0.32 0.75 1.10
1953 2.31 1.34 1.25 0.92 1.18 0.67 0.00 0.52 0.38 0.60 2.25 1.10 2.31
1954 1.20 0.68 0.63 1.58 1.18 1.15 0.25 0.86 0.33 0.54 0.68 1.44 1.58
1955 0.48 0.60 a 0.84 0.83 a 0.66 0.21 0.85 0.00 0.95 1.46 a 1.25 1.40 1.46
1956 1.28 1.00 0.96 0.15 1.03 0.69 0.30 1.16 0.45 0.80 1.08 2.32 2.32
1957 0.53 1.59 1.04 1.46 1.08 0.48 0.03 0.34 0.40 1.67 1.09 1.16 1.67
1958 1.12 2.42 0.51 2.12 0.53 0.85 0.14 0.05 0.43 1.85 2.60 1.69 2.60
1959 1.02 0.61 0.72 0.63 1.51 0.73 0.58 0.62 1.63 1.11 1.59 0.65 1.63
1960 0.81 1.00 1.45 0.87 1.01 0.55 0.07 1.07 0.93 0.85 1.58 0.70 1.58
1961 0.53 1.76 1.90 0.82 0.51 0.62 0.09 0.65 1.06 1.47 0.98 1.56 1.90
1962 1.26 0.45 1.20 2.00 0.97 0.24 0.00 0.37 1.50 1.18 1.34 1.12 2.00
1963 0.53 0.70 1.18 0.67 0.25 a 0.47 0.35 0.18 0.55 0.37 2.64 1.03 2.64
1964 1.30 0.52 0.73 1.34 0.38 0.40 0.55 0.33 0.70 0.70 3.68 1.63 3.68
1965 1.90 1.07 0.36 1.32 0.85 1.52 0.55 0.82 0.97 0.92 0.55 0.34 1.90
1966 2.50 1.72 2.28 0.36 0.36 0.83 0.94 0.70 0.38 1.02 1.20 1.44 2.50
1967 1.50 0.44 1.00 0.95 1.38 0.93 0.05 0.00 0.63 1.29 1.11 1.55 1.55
1968 0.58 A 2.20 0.87 0.52 1.02 1.06 0.61 1.73 1.31 0.97 1.40 A 1.20 A 2.20
1969 2.00 0.82 1.10 1.49 0.87 1.30 0.00 0.00 0.78 0.84 0.46 1.62 2.00
1970 1.32 1.46 1.05 1.69 0.74 0.73 0.46 0.33 1.62 0.81 1.62 0.53 1.69
1971 2.03 0.81 1.25 0.85 0.95 0.81 0.98 0.29 1.73 1.09 0.93 1.04 2.03
1972 1.11 0.74 1.57 0.69 1.20 0.42 0.04 A 0.36 0.79 0.50 0.74 1.75 1.75
1973 1.42 0.80 0.60 0.60 0.96 0.68 0.00 0.18 1.08 1.10 1.53 1.83 1.83
1974 1.79 1.07 1.16 1.18 0.85 2.03 0.65 0.00 0.00 0.00 1.00 1.44 2.03
1975 1.46 1.10 1.27 0.50 0.70 0.72 0.05 z 1.00 0.00 1.30 1.30 2.00 l 2.00
1976 9999.00 z 0.75 j 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.05 l 0.57 0.05 9999.00 z 1.60 0.90 1.60
1977 0.40 0.62 0.65 0.28 0.60 0.28 0.20 2.28 0.62 9999.00 z 9999.00 z 2.18 A 2.28
1978 0.37 0.70 i 0.55 1.11 0.58 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 1.18 9999.00 z 1.18
1979 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.70 0.80 0.22 0.49 0.23 1.13 0.72 1.40 1.40
1980 0.87 0.74 0.81 0.67 1.25 0.55 0.35 0.75 1.03 1.45 1.15 1.36 1.45
1981 9999.00 z 1.15 0.68 1.29 9999.00 z 9999.00 z 9999.00 z 0.01 1.10 0.85 0.89 1.15 1.29
1982 1.81 2.02 0.82 0.97 0.50 0.59 0.54 0.35 0.82 0.80 0.67 0.80 2.02
1983 1.59 1.07 1.71 0.52 0.87 0.45 0.77 0.38 0.80 0.96 9999.00 z 9999.00 z 1.71
1984 0.00 y 1.33 1.62 0.63 1.02 0.60 0.33 0.82 0.76 0.94 1.30 1.11 1.62
1985 0.25 0.67 0.85 0.79 0.36 0.72 0.44 0.41 0.70 1.11 0.52 0.29 1.11
1986 1.07 2.50 0.97 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.52 0.93 0.35 2.50
1987 1.12 1.12 0.56 0.99 0.64 0.36 0.24 0.28 0.39 0.00 0.80 1.59 1.59
1988 1.25 h 0.96 1.13 0.69 1.25 0.62 0.18 0.00 0.81 0.15 1.32 0.56 1.32
1989 2.20 0.36 0.91 0.38 1.19 0.82 0.20 0.70 0.47 0.70 0.90 0.84 2.20
1990 9999.00 z 0.55 0.91 1.57 1.02 0.64 0.39 0.23 0.00 1.67 1.73 9999.00 z 1.73
Period of Record Statistics
MEAN 1.19 1.11 1.03 0.93 0.87 0.78 0.34 0.48 0.74 0.97 1.25 1.21 1.93
S.D. 0.60 0.55 0.42 0.48 0.32 0.44 0.28 0.48 0.45 0.48 0.64 0.49 0.52
SKEW 0.35 0.91 0.91 0.64 -0.11 1.32 0.64 1.75 0.34 -0.09 1.70 0.01 1.25
MAX 2.50 2.50 2.28 2.12 1.51 2.03 0.98 2.28 1.73 1.88 3.68 2.32 3.68
MIN 0.25 0.36 0.36 0.15 0.25 0.21 0.00 0.00 0.00 0.00 0.32 0.29 1.10
NO YRS 36 39 39 38 39 38 37 41 41 40 41 39 29