CORVALLIS, OREGON

Monthly Total Precipitation (inches)

(351857)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197211
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
1936 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.33 6.22 a 6.55
1937 5.64 c 9.36 2.31 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 17.31
1938 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.79 4.05 4.45 a 10.29
1939 4.54 4.78 3.01 0.19 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.42 0.58 8.99 25.51
1940 4.94 10.97 5.60 1.98 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.85 5.76 5.22 38.32
1941 4.78 1.60 1.66 1.83 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.52 6.22 9.10 26.71
1942 3.51 4.31 a 1.32 1.42 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.32 14.50 10.32 36.70
1943 6.89 5.21 5.91 2.77 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 6.34 2.93 2.93 32.98
1944 3.80 2.57 2.62 3.10 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.91 5.07 3.16 22.23
1945 7.18 6.25 6.90 3.79 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.05 11.47 5.20 41.84
1946 5.15 4.87 5.56 0.61 0.76 0.96 0.54 0.00 2.02 4.44 7.81 3.33 36.05
1947 2.62 3.64 5.70 2.56 0.10 3.54 1.71 0.51 0.71 10.78 4.14 3.69 39.70
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.32 2.67 6.78 8.35 19.12
1949 1.74 11.84 2.60 0.29 2.30 1.18 0.00 0.38 1.85 1.83 5.82 5.01 34.84
1950 12.45 5.76 5.49 1.56 0.77 1.16 0.23 0.82 1.32 10.90 8.82 6.56 55.84
1951 8.47 5.53 5.47 0.65 1.47 0.01 0.08 0.11 0.95 8.78 6.46 8.98 46.96
1952 6.75 5.02 2.72 1.27 0.60 4.18 0.00 0.16 0.57 0.39 1.31 a 7.63 30.60
1953 10.83 4.32 4.31 2.14 3.48 1.56 0.00 1.42 0.41 4.05 6.27 8.78 47.57
1954 11.79 5.51 3.35 2.76 1.04 3.17 a 0.40 1.05 1.76 4.06 5.66 7.24 47.79
1955 3.07 2.20 5.13 5.10 0.85 1.07 0.68 0.00 1.87 6.74 7.69 13.69 48.09
1956 11.40 6.75 5.14 a 0.97 1.35 b 1.37 0.01 0.45 1.16 5.59 1.28 4.93 40.40
1957 2.48 5.10 8.20 2.05 3.27 1.19 0.26 0.19 0.77 3.39 3.09 9.09 39.08
1958 8.01 7.97 2.27 c 3.51 1.33 1.82 0.00 0.06 1.19 2.50 9.52 4.15 42.33
1959 11.39 5.69 4.22 0.69 2.81 0.92 0.21 0.00 2.28 1.70 2.61 3.49 36.01
1960 4.27 6.75 7.05 3.24 4.04 0.22 0.00 0.90 0.89 2.22 9.85 3.29 42.72
1961 4.68 9.73 7.95 2.03 2.71 0.39 0.37 0.19 1.25 3.36 5.23 6.45 44.34
1962 1.34 4.16 7.32 3.58 1.54 0.27 0.00 0.11 2.09 4.65 6.76 3.12 34.94
1963 1.56 6.18 6.51 5.36 3.78 0.97 0.29 0.62 0.92 2.81 6.99 3.28 39.27
1964 10.75 1.13 5.02 1.18 0.41 1.11 0.50 0.16 0.34 0.91 8.64 13.44 43.59
1965 11.25 1.59 0.46 2.14 1.31 0.38 0.39 0.76 0.00 z 1.99 7.40 7.49 35.16
1966 8.93 1.76 7.79 1.18 0.00 z 0.46 0.73 0.51 1.64 2.74 4.22 7.26 37.22
1967 8.87 1.68 4.27 1.69 0.69 0.55 0.00 0.00 0.66 5.76 3.14 5.35 32.66
1968 6.40 7.09 3.20 1.11 4.03 0.68 0.21 4.71 1.86 5.44 5.82 11.28 51.83
1969 10.03 4.27 1.87 2.21 1.14 1.73 0.05 0.01 3.15 3.57 2.63 9.22 39.88
1970 12.89 4.60 2.42 2.52 1.18 1.01 0.06 0.00 0.99 3.60 7.42 10.23 46.92
1971 9.03 4.07 6.65 3.59 1.64 2.30 0.02 0.28 3.49 2.47 7.71 8.70 49.95
1972 7.80 4.84 5.56 4.53 1.99 1.09 0.10 0.36 1.95 0.85 3.63 0.00 z 32.70
Period of Record Statistics
MEAN 6.92 5.21 4.58 2.23 1.78 1.28 0.26 0.53 1.44 3.70 5.77 6.85 42.23
S.D. 3.47 2.61 2.10 1.33 1.19 1.02 0.37 0.93 0.78 2.58 3.07 2.97 6.49
SKEW 0.08 0.66 -0.07 0.59 0.67 1.41 2.46 3.67 0.87 1.33 0.44 0.49 0.14
MAX 12.89 11.84 8.20 5.36 4.04 4.18 1.71 4.71 3.49 10.90 14.50 13.69 55.84
MIN 1.34 1.13 0.46 0.19 0.10 0.01 0.00 0.00 0.34 0.39 0.33 2.93 30.60
NO YRS 34 34 34 33 25 26 26 26 26 35 36 35 23