HALFWAY, OREGON

Monthly Total Precipitation (inches)

(353604)

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
1936 0.00 z 0.00 z 0.00 z 0.00 z 0.46 2.17 0.38 0.03 0.15 0.11 0.00 3.02 6.32
1937 3.59 4.06 o 1.52 2.71 0.30 1.96 0.46 0.18 0.02 1.91 7.33 5.39 25.37
1938 5.12 3.39 4.99 2.31 1.62 0.73 0.31 0.20 0.38 1.97 4.93 2.25 28.20
1939 2.79 3.90 1.58 0.46 1.77 0.66 0.85 0.00 0.55 1.96 0.13 3.51 18.16
1940 3.94 0.00 z 3.14 y 3.90 0.22 0.59 0.58 0.00 3.97 2.62 2.95 2.48 21.25
1941 4.59 0.00 z 1.16 1.85 2.70 0.00 z 0.04 1.29 1.33 1.30 2.22 4.99 21.47
1942 1.95 3.18 0.86 1.44 3.04 0.63 0.00 z 0.15 0.33 1.62 4.45 5.54 23.19
1943 2.69 v 2.06 1.15 2.79 0.95 1.91 0.60 0.26 0.00 2.45 1.05 1.27 14.49
1944 1.68 2.14 0.73 3.12 0.98 2.79 0.00 0.05 0.02 0.81 2.51 0.83 15.66
1945 3.99 4.26 r 2.27 0.26 3.27 2.17 0.06 0.06 0.57 1.07 z 3.63 q 3.83 16.48
1946 3.00 0.00 z 0.64 z 0.15 0.00 z 0.00 z 0.33 0.00 0.97 0.00 z 0.00 z 2.75 7.20
1947 0.00 z 0.00 z 0.12 z 1.62 0.79 2.34 0.00 0.00 0.74 0.00 z 2.10 u 0.48 5.97
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.25 0.42 0.52 1.10 0.89 q 0.80 l 2.29
1949 0.70 5.95 e 0.14 0.43 1.94 0.24 0.04 0.00 a 0.37 a 0.67 2.87 1.61 14.96
1950 3.32 2.39 3.54 1.01 0.32 3.57 0.00 0.08 0.24 0.99 0.24 k 3.58 19.04
1951 3.03 2.71 e 1.99 2.00 1.03 0.82 0.90 0.69 0.60 3.33 a 1.53 b 6.55 25.18
1952 3.97 3.88 0.89 0.73 0.53 i 2.01 h 0.88 0.12 0.28 0.00 c 1.20 3.98 15.93
1953 7.46 a 2.95 2.16 1.90 3.87 1.42 0.00 0.57 0.00 0.20 1.00 3.22 24.75
1954 1.77 0.80 a 1.65 2.07 0.29 S 2.51 0.27 0.93 0.70 a 0.29 a 0.98 3.81 16.07
1955 1.11 a 1.73 b 0.44 t 2.03 0.20 0.60 1.16 0.00 1.33 b 0.83 3.73 4.34 17.06
1956 4.91 1.46 1.12 2.32 1.95 1.36 0.83 0.95 0.26 1.24 a 0.43 2.82 19.65
1957 2.22 2.62 3.79 a 1.61 3.26 0.82 0.18 0.12 0.12 2.58 1.56 a 5.47 24.35
1958 4.81 4.73 2.32 2.20 2.32 2.11 0.21 0.35 1.16 0.29 2.85 2.66 26.01
1959 4.10 1.99 2.00 1.13 2.60 0.17 0.10 0.33 4.80 1.95 1.55 1.89 22.61
1960 2.09 2.35 2.74 0.77 2.37 0.10 0.26 1.12 0.62 a 1.02 5.22 1.72 20.38
1961 2.11 3.08 3.40 0.36 1.00 0.78 0.31 0.26 0.43 2.41 2.71 3.26 20.11
1962 2.38 1.88 1.79 1.27 2.83 0.60 0.32 0.65 1.57 2.33 2.86 2.31 20.79
1963 1.70 1.95 1.10 1.63 1.72 1.71 0.09 0.66 1.27 0.29 5.16 2.20 19.48
1964 4.41 0.59 2.27 1.70 0.85 3.38 1.16 0.55 1.03 0.03 2.88 5.84 24.69
1965 5.72 0.86 0.37 2.23 0.31 1.99 0.51 2.35 0.31 0.35 2.94 0.49 18.43
1966 1.24 1.49 1.86 0.67 0.27 0.96 0.11 0.40 0.84 1.37 3.84 5.07 18.12
1967 4.17 1.08 1.15 0.97 1.16 0.94 0.12 0.00 0.75 2.72 2.06 1.88 17.00
1968 1.48 5.03 0.70 0.80 1.33 0.45 0.00 2.82 0.25 1.85 4.02 3.88 22.61
1969 3.63 2.05 0.31 1.70 1.04 3.03 0.02 0.00 0.75 0.91 0.36 4.14 17.94
1970 9.08 1.58 1.55 0.68 2.27 1.49 0.36 0.00 1.97 2.17 4.56 3.99 29.70
1971 4.81 1.41 2.14 1.33 0.50 3.10 0.08 0.31 0.41 1.67 3.82 4.91 24.49
1972 3.67 1.63 3.06 0.80 0.85 1.36 0.49 0.15 0.56 0.29 3.06 6.30 22.22
1973 2.81 0.85 1.28 0.58 2.52 0.21 0.13 0.06 1.35 1.65 7.16 7.21 25.81
1974 2.52 1.76 3.32 0.68 0.13 0.73 1.13 0.23 0.00 0.29 0.94 4.49 16.22
1975 4.07 3.56 2.43 1.51 0.50 1.56 0.44 1.43 0.01 3.09 2.74 2.95 24.29
1976 4.55 2.45 1.87 2.21 0.50 0.65 1.09 2.09 0.81 0.14 0.17 0.22 16.75
1977 0.90 0.66 1.23 0.17 2.29 0.37 0.52 0.73 2.06 0.58 4.42 6.41 20.34
1978 3.03 2.38 2.13 5.08 1.18 0.79 1.00 0.66 1.17 0.00 1.90 2.92 22.24
1979 2.59 4.23 1.71 1.68 1.42 0.91 0.03 0.74 0.20 2.55 2.19 1.42 19.67
1980 2.29 2.85 1.81 0.75 2.92 2.23 0.64 0.04 2.75 0.88 2.04 4.73 23.93
1981 3.03 3.31 2.54 0.58 1.56 2.77 0.70 0.01 0.79 2.41 3.48 5.04 26.22
1982 4.56 4.77 1.74 1.90 1.10 1.79 1.14 0.16 0.79 2.92 1.00 5.82 27.69
1983 2.83 3.50 6.14 2.32 0.55 0.96 0.96 0.68 0.47 0.65 4.55 5.53 29.14
1984 2.86 2.74 2.37 2.47 2.30 1.72 0.51 2.69 0.45 1.01 4.18 3.95 27.25
1985 0.29 1.66 1.60 0.69 1.33 0.86 0.30 1.72 2.42 1.79 2.84 1.69 17.19
1986 2.77 4.28 1.79 1.51 1.29 0.14 0.56 0.31 2.81 0.58 2.22 0.58 18.84
1987 3.80 0.89 1.96 0.58 1.03 0.68 0.87 0.19 0.00 0.00 2.12 2.27 14.39
1988 3.09 0.70 0.83 1.65 1.95 1.02 0.12 0.10 0.24 0.00 7.36 2.96 20.02
1989 5.23 3.10 2.21 1.23 1.53 0.96 0.12 1.96 1.07 1.91 1.51 0.38 21.21
1990 2.81 2.88 b 1.02 2.25 2.98 1.15 0.40 0.80 0.00 2.39 1.57 a 1.09 19.34
1991 4.05 0.78 1.62 2.04 3.71 1.53 0.12 0.10 0.12 0.68 4.01 1.38 20.14
1992 1.46 1.78 0.47 1.38 0.67 2.19 0.72 a 0.01 0.26 1.60 2.77 3.90 17.21
1993 5.52 1.36 a 3.40 2.73 1.56 3.22 1.39 0.67 a 0.00 1.46 c 1.21 2.99 a 25.51
1994 2.51 2.67 0.11 1.81 1.50 0.17 0.38 0.00 0.25 0.35 4.62 3.82 a 18.19
1995 5.57 1.29 3.30 0.95 0.60 1.94 1.50 1.15 0.20 1.49 4.69 4.75 27.43
1996 2.38 a 2.06 1.17 3.78 3.52 0.36 1.19 0.13 1.22 1.73 3.16 6.69 27.39
1997 3.76 0.92 1.29 2.27 1.10 1.69 2.01 0.43 1.47 0.93 1.67 2.89 20.43
1998 5.08 1.42 3.01 1.29 7.18 1.44 0.36 0.12 2.08 0.11 4.15 4.30 30.54
1999 2.06 6.86 0.47 0.39 0.83 0.82 0.15 0.87 0.00 1.03 4.00 4.64 22.12
2000 4.34 4.89 2.23 0.71 1.03 1.03 0.06 0.08 1.33 2.03 1.41 1.71 20.85
2001 2.10 1.09 1.88 2.55 1.23 0.54 0.66 0.00 0.29 1.62 3.58 4.12 19.66
2002 3.50 1.44 1.99 1.20 0.34 0.60 0.59 0.30 0.33 0.13 0.53 4.73 15.68
2003 3.56 0.88 1.97 2.10 2.24 0.17 0.15 0.92 0.21 0.35 1.67 4.58 18.80
2004 5.25 2.82 1.15 1.14 2.41 1.12 0.59 0.90 1.37 1.10 0.97 2.30 21.12
2005 1.79 0.65 2.84 1.69 3.83 1.66 0.36 0.01 0.52 1.90 3.50 6.44 a 25.19
2006 5.14 1.26 2.45 a 1.95 b 0.61 1.75 0.11 0.14 0.79 0.24 3.40 4.56 22.40
2007 0.85 3.05 0.27 1.03 1.17 0.73 0.04 0.39 0.74 1.91 2.89 4.19 17.26
2008 4.04 2.14 0.78 0.80 1.37 0.43 0.22 0.42 1.10 0.49 2.22 3.77 17.78
2009 2.84 d 0.86 1.63 1.25 2.02 2.89 0.04 1.24 0.01 2.32 1.08 3.82 20.00
2010 4.01 1.76 0.53 2.29 1.73 5.03 0.22 0.32 0.34 0.51 b 0.00 z 0.00 z 16.74
2011 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.15 z 0.03 0.16 0.05 2.39 1.36 1.91 5.90
2012 3.79 2.02 3.00 2.12 a 1.06 1.01 0.34 0.00 0.04 3.05 2.15 2.25 20.83
2013 2.51 1.21 a 0.71 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 4.43
Period of Record Statistics
MEAN 3.35 2.33 1.84 1.57 1.61 1.38 0.45 0.51 0.78 1.30 2.74 3.49 21.46
S.D. 1.55 1.35 1.10 0.92 1.18 0.98 0.42 0.64 0.89 0.93 1.66 1.71 4.02
SKEW 0.73 1.06 1.14 1.00 1.69 1.12 1.23 1.87 2.22 0.27 0.70 0.04 0.38
MAX 9.08 6.86 6.14 5.08 7.18 5.03 2.01 2.82 4.80 3.33 7.36 7.21 30.54
MIN 0.29 0.59 0.11 0.15 0.13 0.10 0.00 0.00 0.00 0.00 0.00 0.22 14.39
NO YRS 73 69 71 74 73 72 76 77 77 74 71 75 62