UMATILLA, OREGON

Monthly Total Precipitation (inches)

(358734)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 196510
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
1892 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 0.00 z 1.44 1.44
1893 0.56 0.54 0.65 0.66 1.47 0.03 0.00 0.00 p 0.98 1.53 1.47 1.58 w 7.89
1894 2.33 0.40 1.49 1.03 0.81 0.53 0.00 0.03 0.11 0.69 0.14 0.49 8.05
1895 1.96 0.46 0.15 z 0.20 0.64 0.04 0.07 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.37
1896 0.00 z 0.69 0.32 1.04 0.98 0.01 0.00 z 0.93 0.10 0.36 1.95 1.07 7.45
1897 1.46 1.08 0.91 0.26 0.62 0.80 0.45 0.01 0.52 0.04 0.91 1.64 8.70
1898 0.31 0.63 0.44 0.18 0.52 0.56 0.00 0.07 0.00 z 0.18 1.21 0.37 4.47
1899 1.53 1.00 0.35 0.40 0.66 0.20 0.02 1.89 0.38 1.82 1.12 0.99 10.36
1900 0.83 0.53 0.59 1.02 0.79 0.17 0.00 0.43 0.51 1.67 0.54 0.89 7.97
1901 0.92 1.85 0.60 0.15 0.85 0.48 0.02 0.15 c 0.95 0.00 0.49 1.11 7.57
1902 1.22 a 2.10 0.05 1.27 0.53 0.00 0.00 0.08 0.67 0.21 1.69 0.81 8.63
1903 0.33 0.02 0.28 0.01 0.26 0.86 0.08 0.42 0.45 0.43 2.02 0.72 5.88
1904 1.07 1.46 1.64 0.51 0.33 0.23 0.81 0.00 0.15 0.60 0.14 0.80 7.74
1905 1.31 0.24 0.63 0.30 1.06 0.70 0.00 0.00 0.48 0.68 0.48 0.79 6.67
1906 0.60 0.89 0.48 0.04 0.00 z 0.00 z 0.00 0.17 0.55 0.29 2.40 t 0.00 z 3.02
1907 1.79 0.98 2.14 0.50 a 0.89 0.37 0.11 0.24 z 0.21 0.14 0.89 1.22 9.24
1908 0.39 0.38 x 0.65 0.29 0.63 u 0.18 0.36 0.14 0.19 1.29 v 0.89 0.58 3.67
1909 1.86 0.83 s 0.13 0.53 z 0.17 0.04 0.26 0.00 0.11 0.52 v 1.72 p 1.14 3.71
1910 0.98 0.92 1.07 0.20 1.07 0.90 0.06 0.00 0.36 0.25 1.76 0.67 8.24
1911 0.69 0.60 0.24 0.15 1.53 1.11 0.00 0.18 1.50 0.22 0.41 0.35 6.98
1912 1.78 0.56 0.37 1.34 0.92 1.18 0.06 1.10 0.06 0.29 0.78 0.44 8.88
1913 1.40 0.38 0.35 0.68 0.80 1.64 0.14 0.64 0.24 1.24 1.09 0.90 9.50
1914 1.76 0.62 0.06 0.98 1.20 0.30 0.03 0.00 0.46 1.15 0.34 0.39 7.29
1915 0.55 0.66 0.94 0.74 1.36 0.32 0.23 0.00 0.08 0.15 1.91 1.30 8.24
1916 1.29 2.02 1.87 0.99 0.20 1.41 0.62 0.12 0.05 0.54 1.46 1.01 11.58
1917 0.31 0.53 0.20 1.37 0.77 0.14 0.00 0.00 0.36 0.00 0.88 2.12 6.68
1918 1.03 0.48 0.16 0.03 0.37 0.07 0.08 0.92 0.14 a 1.27 0.61 0.56 5.72
1919 1.15 1.36 0.50 0.51 0.07 0.00 0.00 0.01 0.83 0.76 1.45 1.17 7.81
1920 1.19 0.07 0.69 1.16 0.10 0.89 0.04 1.25 0.81 0.93 0.66 1.80 9.59
1921 0.94 2.01 0.28 0.48 0.52 0.47 0.00 0.09 0.30 0.52 2.21 0.64 8.46
1922 0.84 0.87 1.09 0.40 0.19 0.15 0.00 0.29 0.40 0.58 0.49 1.11 6.41
1923 0.78 0.74 0.21 0.89 0.28 0.68 0.70 0.81 0.35 1.95 0.73 0.55 8.67
1924 0.74 0.82 0.28 0.00 0.00 0.33 0.24 0.74 0.53 0.86 1.43 1.30 7.27
1925 0.75 1.19 0.31 0.72 0.72 0.06 0.00 0.03 0.45 0.02 a 0.41 1.06 5.72
1926 0.77 1.28 0.25 0.12 0.18 0.31 0.00 0.16 0.68 0.97 3.13 0.73 8.58
1927 1.40 0.50 0.30 0.07 0.12 0.47 0.00 0.02 2.05 1.07 1.87 0.00 z 7.87
1928 0.00 z 0.00 z 1.04 0.69 0.19 0.06 0.15 0.25 0.57 0.09 0.96 0.00 z 4.00
1929 0.00 z 0.00 z 0.15 0.14 0.28 0.50 0.00 0.00 0.08 0.00 z 0.00 z 0.00 z 1.15
1930 0.00 z 0.00 z 0.20 0.33 0.58 0.00 0.00 0.17 0.76 x 0.84 0.72 0.32 3.16
1931 1.20 0.02 1.54 0.50 0.00 0.50 0.00 0.00 0.00 0.42 1.84 1.20 7.22
1932 0.62 0.37 1.07 0.33 0.55 0.05 0.00 0.00 0.00 0.61 1.14 0.24 4.98
1933 0.61 1.05 a 0.84 0.48 0.33 0.11 0.00 0.00 0.43 0.72 0.55 1.04 6.16
1934 0.10 0.35 0.40 0.40 0.09 0.19 0.00 0.07 0.36 0.43 0.95 0.73 4.07
1935 0.13 0.37 0.57 0.74 0.03 0.27 0.26 0.31 0.20 0.53 0.45 1.53 5.39
1936 1.89 1.23 0.20 0.80 0.25 0.31 0.00 0.00 0.20 0.00 0.00 0.98 5.86
1937 1.04 0.48 1.06 1.26 0.08 0.99 0.27 0.00 0.16 0.59 1.64 1.64 9.21
1938 0.55 0.80 0.55 0.64 0.54 0.75 0.20 0.00 0.05 0.60 0.89 0.59 6.16
1939 0.79 0.91 0.86 0.22 0.04 0.26 0.41 0.00 0.52 0.30 0.00 1.25 5.56
1940 1.66 2.76 0.98 t 0.78 0.15 0.00 0.36 0.00 0.44 0.87 1.80 1.09 9.91
1941 1.35 0.78 0.39 x 0.28 0.86 1.66 0.00 1.00 1.41 0.46 1.08 1.17 10.05
1942 0.93 0.94 0.05 0.12 1.13 1.18 0.25 0.00 0.00 z 0.75 2.53 2.29 10.17
1943 0.68 0.50 0.52 1.10 0.59 1.22 0.00 0.32 0.00 1.41 0.32 1.00 7.66
1944 0.52 0.56 0.57 0.89 0.76 0.86 0.00 0.00 0.22 0.42 0.98 0.86 6.64
1945 1.15 1.60 0.93 0.82 1.90 0.11 0.00 0.00 1.34 0.61 1.26 1.68 11.40
1946 0.73 0.28 0.97 0.10 0.84 0.69 0.00 0.00 1.43 0.81 1.01 0.37 7.23
1947 0.36 0.47 0.74 0.59 0.11 0.97 0.53 0.18 1.07 0.20 z 1.21 1.00 7.23
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.59 b 0.00 0.14 0.32 1.27 1.18 4.50
1949 0.14 0.86 0.85 0.03 0.45 0.00 0.00 0.00 0.15 0.23 1.23 0.28 4.22
1950 1.51 0.62 1.14 0.45 0.00 1.61 0.00 0.00 0.04 2.23 0.71 a 1.96 10.27
1951 1.22 0.88 1.08 0.30 0.28 1.83 0.12 0.06 0.23 1.10 1.06 1.09 9.25
1952 0.46 1.07 0.34 0.16 0.41 1.58 0.00 0.06 0.54 0.02 0.16 1.51 6.31
1953 2.87 0.53 0.29 0.87 1.23 0.54 0.00 0.45 0.00 0.31 1.51 0.82 9.42
1954 1.40 0.28 0.73 0.12 0.48 0.41 0.41 0.17 0.76 0.37 0.88 0.78 6.79
1955 0.52 0.33 0.62 0.68 0.56 1.25 0.59 0.00 0.36 0.72 1.87 2.21 9.71
1956 2.27 0.80 0.26 0.00 0.62 0.36 0.19 0.63 0.12 1.31 0.19 0.86 7.61
1957 0.98 0.68 2.19 0.38 1.41 1.37 0.20 0.03 0.86 4.14 0.66 0.83 13.73
1958 2.04 1.92 1.07 1.42 0.96 0.46 0.08 0.02 0.15 0.06 1.09 1.85 11.12
1959 2.34 0.98 0.31 0.56 0.34 0.33 0.05 0.15 1.75 0.50 0.33 0.44 8.08
1960 0.56 0.75 0.85 0.44 1.19 0.35 0.00 0.55 0.18 0.77 1.33 0.79 7.76
1961 0.70 2.44 1.51 0.79 1.41 0.91 0.04 0.16 0.15 0.17 1.05 1.18 10.51
1962 0.26 0.97 0.90 0.75 2.68 0.04 0.00 0.91 0.39 1.36 1.05 1.61 10.92
1963 0.45 1.84 0.76 1.44 0.75 0.17 0.11 0.10 0.29 0.28 1.60 1.00 8.79
1964 0.53 0.13 0.81 0.20 0.02 1.03 0.96 0.30 0.11 0.73 1.59 5.40 11.81
1965 2.18 0.18 0.29 0.57 0.57 0.86 0.26 1.26 0.07 0.13 b 0.00 z 0.00 z 6.37
Period of Record Statistics
MEAN 1.05 0.85 0.68 0.55 0.62 0.56 0.16 0.25 0.45 0.69 1.07 1.09 8.02
S.D. 0.62 0.58 0.49 0.40 0.51 0.49 0.27 0.39 0.44 0.66 0.63 0.72 2.01
SKEW 0.73 1.22 1.15 0.53 1.29 0.84 2.83 1.99 1.64 2.51 0.62 3.38 0.42
MAX 2.87 2.76 2.19 1.44 2.68 1.83 1.59 1.89 2.05 4.14 3.13 5.40 13.73
MIN 0.10 0.02 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.24 4.07
NO YRS 68 67 69 71 70 71 72 70 69 68 68 67 55