HEADWORKS PTLD WTR BUR, OREGON

Monthly Total Precipitation (inches)

(353770)

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
1899 0.00 z 0.00 z 0.00 z 8.71 r 8.38 2.69 0.28 6.05 2.77 8.08 12.35 8.70 49.30
1900 8.89 8.21 9.11 3.96 7.67 3.83 1.71 2.32 4.89 10.69 10.39 9.22 m 71.67
1901 11.77 12.23 m 10.04 5.75 4.35 5.17 0.53 0.12 0.00 z 2.23 9.18 8.60 57.74
1902 5.56 p 10.04 12.22 g 9.49 7.06 o 2.25 u 4.91 1.18 3.12 1.69 17.38 14.13 61.94
1903 12.22 l 2.88 4.87 5.80 5.15 4.33 1.93 2.04 4.95 5.55 12.67 j 6.97 r 37.50
1904 12.37 12.75 15.45 5.86 1.39 1.90 1.19 0.42 0.68 3.70 8.06 12.18 75.95
1905 5.89 3.53 7.25 l 3.20 r 7.87 3.07 0.30 0.65 5.11 9.58 5.08 9.56 50.64
1906 8.07 9.05 4.22 3.60 4.56 6.29 0.05 0.79 5.80 9.51 14.79 12.19 78.92
1907 12.52 8.06 o 7.19 7.83 3.42 5.17 1.27 3.27 3.27 1.99 11.92 14.93 72.78
1908 6.63 4.86 11.20 4.12 8.01 4.43 0.28 2.42 0.37 9.50 4.60 7.61 64.03
1909 12.43 9.71 5.54 4.52 5.55 0.67 4.93 1.05 3.41 5.49 21.60 6.64 81.54
1910 12.03 12.43 7.27 5.03 5.01 2.59 0.00 0.09 0.00 z 6.29 12.78 8.00 71.52
1911 10.81 5.36 2.71 3.17 8.28 l 2.33 0.40 a 0.53 7.60 4.73 9.05 11.60 58.29
1912 15.30 10.31 3.97 4.88 5.89 5.68 0.92 6.59 1.97 6.08 9.49 10.71 81.79
1913 8.44 4.83 11.60 5.33 3.91 6.83 1.45 1.55 5.33 7.57 9.87 5.81 72.52
1914 13.97 8.02 5.93 7.66 2.74 5.39 2.35 0.00 8.67 5.37 a 6.97 3.20 70.27
1915 9.15 6.86 a 4.89 3.95 8.29 5.48 4.10 0.06 2.72 6.31 16.51 14.46 82.78
1916 8.61 a 11.55 16.44 7.80 6.74 4.67 5.39 0.60 2.93 2.26 10.99 9.61 87.59
1917 8.32 5.29 10.75 10.13 5.27 a 4.17 0.18 0.00 5.40 0.57 6.61 24.97 81.66
1918 12.93 10.48 5.81 3.66 4.73 0.20 1.83 1.30 0.69 7.76 7.88 6.86 64.13
1919 12.38 11.72 9.43 8.80 4.57 1.82 0.48 0.07 5.57 6.28 16.45 13.15 90.72
1920 7.92 0.51 8.85 12.38 2.11 4.57 2.36 2.28 8.35 8.27 7.84 13.41 78.85
1921 14.24 14.49 9.97 7.45 3.10 4.12 0.43 1.17 4.97 5.67 r 21.28 e 5.06 86.28
1922 5.92 6.19 10.89 7.56 3.18 0.48 0.00 2.83 2.32 6.58 5.76 13.38 65.09
1923 18.19 4.61 5.93 4.12 6.32 3.92 3.36 1.63 1.79 4.00 9.00 11.67 74.54
1924 6.36 8.83 5.39 3.70 1.15 3.13 0.23 1.58 4.58 6.80 12.86 9.18 63.79
1925 16.40 10.57 5.49 7.97 n 4.44 2.46 0.00 1.63 2.26 1.49 8.88 8.50 62.12
1926 7.63 13.14 2.65 3.30 5.76 2.02 0.00 3.97 5.48 8.29 10.52 9.40 72.16
1927 10.57 10.07 7.01 4.91 6.27 2.73 0.45 0.58 12.21 6.40 17.60 6.88 85.68
1928 8.52 3.06 13.74 7.65 2.26 3.64 1.42 0.18 0.69 5.44 7.91 11.27 65.78
1929 8.62 2.98 7.50 7.79 3.78 3.74 0.09 0.38 1.56 2.64 1.35 15.24 55.67
1930 4.62 10.43 4.56 4.64 7.33 3.21 0.00 0.08 3.02 8.40 5.92 6.04 58.25
1931 7.01 4.31 16.11 4.31 3.22 6.78 0.14 0.10 3.03 7.39 10.61 10.28 73.29
1932 13.92 6.12 14.97 6.01 5.43 0.77 1.83 1.34 0.89 13.66 19.28 13.13 97.35
1933 21.46 14.53 e 12.09 3.04 9.75 4.02 0.30 4.38 14.96 11.27 8.58 32.74 b 137.12
1934 13.48 2.39 10.27 5.51 4.04 2.00 0.64 1.67 2.64 8.11 18.46 16.75 85.96
1935 7.90 5.82 11.00 7.12 2.56 5.23 0.77 0.32 2.10 5.63 4.70 7.61 60.76
1936 16.74 8.51 10.86 2.59 7.78 a 4.89 2.73 0.36 3.42 1.60 0.77 13.14 73.39
1937 10.84 11.25 5.72 12.52 3.70 9.59 0.32 2.83 2.60 6.81 21.24 18.22 105.64
1938 10.58 8.15 13.04 7.47 3.68 2.54 0.56 0.77 1.74 6.39 10.85 a 9.00 74.77
1939 9.64 12.22 7.29 1.69 3.47 5.87 1.82 1.81 1.09 6.51 3.36 12.20 66.97
1940 3.73 16.68 10.38 6.87 2.59 0.44 1.15 0.27 6.03 8.05 11.52 8.00 75.71
1941 8.27 2.91 3.21 3.94 9.97 4.71 0.01 3.14 8.97 5.60 10.96 13.54 75.23
1942 5.20 13.01 5.97 6.17 9.37 7.12 2.18 0.40 0.25 8.77 30.77 21.09 110.30
1943 14.34 9.92 11.49 7.33 4.22 8.26 0.48 a 2.77 0.58 10.36 4.71 5.35 79.81
1944 5.72 8.35 6.58 7.10 3.73 2.84 0.32 0.65 6.59 2.29 8.13 4.12 56.42
1945 11.60 10.73 12.49 10.76 9.91 0.75 0.67 1.31 6.75 4.73 19.65 12.38 101.73
1946 13.58 9.62 9.10 4.41 3.99 5.43 2.13 0.77 2.59 11.95 12.02 13.29 88.88
1947 10.66 3.33 7.81 5.08 2.02 9.11 a 1.46 1.49 2.99 a 17.75 13.55 9.88 85.13
1948 12.03 12.50 9.03 7.26 7.92 3.85 3.22 2.10 5.06 5.74 16.86 19.22 104.79
1949 3.76 19.89 5.67 2.25 5.06 2.35 1.63 0.93 4.00 7.70 9.70 12.97 a 75.91
1950 15.84 12.70 12.44 6.65 3.64 5.46 1.46 1.44 3.80 14.06 17.67 14.45 109.61
1951 21.13 7.57 11.67 2.96 4.78 0.46 1.21 0.75 4.38 12.54 9.33 9.25 a 86.03
1952 8.20 7.33 9.89 2.86 2.40 a 6.14 0.05 0.07 1.15 1.52 1.49 12.02 a 53.12
1953 23.34 9.04 9.29 4.89 9.79 5.40 0.22 3.47 2.66 3.43 14.45 16.07 102.05
1954 17.02 5.87 4.41 a 5.71 b 5.38 a 8.80 3.25 a 3.14 1.89 5.47 b 9.24 9.69 79.87
1955 5.96 5.30 a 9.19 11.00 3.90 3.40 2.38 0.00 4.97 12.73 16.75 16.70 92.28
1956 17.27 8.64 10.88 1.40 5.66 5.59 0.13 5.21 2.44 12.67 4.00 8.98 82.87
1957 6.15 a 6.98 14.85 5.52 4.50 3.71 0.50 0.87 1.05 6.36 7.19 16.28 73.96
1958 13.88 9.69 4.57 10.58 1.73 7.12 0.00 0.65 4.52 4.19 16.35 12.48 85.76
1959 15.56 8.57 10.96 4.73 6.67 4.26 1.05 0.73 9.36 9.74 5.34 6.14 83.11
1960 7.44 8.23 11.35 7.90 9.66 2.41 0.02 3.14 2.73 7.84 17.87 6.67 85.26
1961 6.64 19.60 12.19 6.95 7.15 1.09 0.67 0.92 4.64 8.77 8.92 11.46 89.00
1962 5.15 6.69 12.17 8.35 9.37 a 1.44 0.60 2.31 3.31 6.57 15.14 5.03 76.13
1963 4.52 8.83 9.73 8.52 6.46 4.87 3.07 1.97 3.82 5.37 11.55 8.24 76.95
1964 18.08 4.95 7.92 6.57 4.21 6.80 2.08 3.45 3.08 3.24 11.66 17.89 89.93
1965 17.50 7.66 2.54 5.50 2.92 1.23 0.77 3.98 0.85 4.65 7.86 11.56 a 67.02
1966 13.40 5.59 10.14 4.37 2.30 2.42 3.75 0.77 2.85 7.36 11.65 11.79 76.39
1967 15.51 6.75 7.89 4.57 2.88 2.54 0.00 0.03 2.10 11.63 5.77 12.26 71.93
1968 7.23 12.03 5.53 5.95 5.13 5.36 1.25 7.15 4.04 11.02 14.98 16.98 a 96.65
1969 15.15 4.60 5.10 4.02 4.22 7.04 0.76 0.98 5.50 6.89 5.85 12.34 72.45
1970 19.54 5.68 6.24 10.25 2.96 2.14 0.57 0.02 6.37 6.54 11.89 12.21 84.41
1971 17.60 8.83 10.47 6.85 3.74 5.02 0.71 2.64 6.90 8.38 12.79 15.85 99.78
1972 14.41 10.24 11.53 11.17 5.28 2.58 0.97 0.23 6.88 2.27 8.50 15.45 89.51
1973 8.08 3.36 7.08 4.38 3.60 4.31 0.05 2.05 7.72 7.79 18.26 17.67 84.35
1974 15.19 11.29 11.99 7.93 6.62 2.11 3.80 1.31 0.45 2.87 10.60 14.07 88.23
1975 14.67 8.32 9.43 5.47 4.58 3.59 0.56 4.97 0.00 11.49 10.89 15.10 89.07
1976 12.54 10.43 7.22 7.27 4.74 2.02 1.78 4.55 1.80 3.30 2.13 4.12 61.90
1977 3.21 4.93 12.33 2.72 9.98 1.90 0.95 4.55 7.50 4.59 11.55 17.82 82.03
1978 8.54 5.45 2.97 8.50 5.93 3.91 2.78 5.55 4.75 0.91 7.64 8.76 65.69
1979 4.48 15.12 6.83 8.57 3.83 2.93 1.61 2.11 2.82 9.16 6.37 10.42 74.25
1980 14.23 7.73 9.74 5.77 4.43 6.33 0.54 1.54 3.97 2.50 11.85 14.99 83.62
1981 3.23 8.23 5.44 6.66 6.48 9.13 0.92 0.13 5.41 6.20 6.15 15.89 73.87
1982 14.28 14.34 6.22 5.66 1.95 2.33 1.33 2.68 7.66 8.30 7.96 12.63 85.34
1983 12.53 13.61 11.62 4.59 5.58 6.76 6.56 2.45 2.25 4.17 12.65 10.29 93.06
1984 8.16 8.03 9.78 7.71 8.71 9.22 0.00 0.38 4.99 9.47 15.86 8.76 91.07
1985 0.39 7.94 6.86 4.60 3.86 4.13 0.58 2.64 6.39 7.36 11.91 2.86 59.52
1986 9.42 13.05 5.43 6.04 4.29 1.57 3.17 0.75 6.96 2.71 12.92 4.19 70.50
1987 9.62 5.81 9.07 5.54 4.24 0.81 1.65 0.88 0.00 z 0.31 6.01 14.10 58.04
1988 11.00 6.73 10.01 10.71 5.76 3.33 1.98 0.28 2.75 1.03 16.90 6.87 77.35
1989 12.16 6.17 12.75 6.28 4.63 1.97 1.24 2.18 2.83 4.54 8.22 6.72 69.69
1990 14.68 10.15 4.68 8.72 5.47 5.50 1.41 1.99 1.36 13.30 10.38 8.27 85.91
1991 7.56 9.30 7.82 8.88 8.72 4.28 0.74 a 1.63 0.99 3.64 16.27 9.68 79.51
1992 6.74 7.71 2.31 9.46 0.57 1.89 3.31 1.22 4.32 a 6.53 11.33 9.88 65.27
1993 5.94 0.79 10.74 13.18 8.83 5.89 3.65 1.19 0.02 2.89 4.59 8.48 66.19
1994 10.26 10.19 7.02 6.47 2.53 4.88 0.56 0.23 1.95 13.91 14.49 10.42 82.91
1995 12.22 8.78 6.06 7.02 4.74 6.12 1.72 3.44 6.46 8.81 19.34 12.69 97.40
1996 15.24 15.99 5.59 9.10 7.88 1.91 0.45 0.66 4.73 12.21 15.55 22.83 112.14
1997 11.47 6.04 14.39 9.42 5.01 0.00 z 2.10 1.62 6.15 9.69 5.02 6.61 77.52
1998 13.20 7.54 7.38 5.30 10.81 4.36 0.38 0.12 3.62 5.60 12.87 16.37 a 87.55
1999 10.39 13.29 7.40 3.76 6.99 4.36 1.27 1.26 0.18 5.42 13.35 11.17 78.84
2000 11.09 10.48 5.46 3.51 8.29 3.12 0.19 0.44 4.04 7.62 4.63 5.94 64.81
2001 3.96 4.26 7.49 7.89 3.60 5.69 1.74 1.47 1.51 8.80 10.98 13.97 71.36
2002 13.36 5.12 8.15 5.38 3.10 3.80 0.41 0.13 2.70 1.70 4.34 12.36 60.55
2003 13.54 6.16 12.33 9.87 3.73 1.49 0.03 0.10 4.83 4.95 8.79 15.49 81.31
2004 13.51 7.87 4.79 3.13 6.41 3.24 0.13 5.93 4.19 7.82 4.75 8.98 70.75
2005 4.88 2.27 7.23 7.83 8.16 a 5.43 1.24 0.86 2.36 8.08 10.67 13.66 72.67
2006 17.33 6.96 a 6.33 6.34 5.14 2.41 0.28 0.43 a 3.06 4.61 22.25 11.70 86.84
2007 8.72 9.59 8.99 4.74 a 1.94 a 2.59 0.93 1.56 4.40 8.11 8.85 15.93 76.35
2008 12.27 6.52 9.76 7.46 6.04 3.48 0.19 3.63 2.20 a 3.76 11.12 11.38 a 77.81
2009 10.54 3.68 12.14 6.72 6.20 1.69 0.79 0.60 a 2.38 7.82 11.49 8.06 72.11
2010 8.82 a 4.85 a 8.99 6.63 9.46 8.22 0.81 1.12 4.66 6.46 15.91 14.02 89.95
2011 9.43 8.83 12.75 11.62 8.01 3.12 2.13 0.24 2.10 5.61 9.15 b 7.46 80.45
2012 12.90 9.68 15.21 7.97 5.11 8.85 0.52 0.05 0.12 a 12.97 12.75 13.56 99.69
2013 12.66 5.58 4.94 a 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 23.18
Period of Record Statistics
MEAN 10.97 8.36 8.62 6.42 5.29 4.03 1.27 1.65 3.83 6.73 11.06 11.61 80.35
S.D. 4.41 3.70 3.30 2.48 2.33 2.19 1.30 1.59 2.57 3.44 5.15 4.63 13.80
SKEW 0.21 0.52 0.21 0.46 0.43 0.53 1.57 1.36 1.19 0.43 0.62 1.04 0.85
MAX 23.34 19.89 16.44 13.18 10.81 9.59 6.56 7.15 14.96 17.75 30.77 32.74 137.12
MIN 0.39 0.51 2.31 1.40 0.57 0.20 0.00 0.00 0.00 0.31 0.77 2.86 53.12
NO YRS 112 112 112 111 112 112 114 114 111 113 113 112 101