BONNEVILLE DAM, OREGON

Period of Record General Climate Summary - Precipitation

Station:(350897) BONNEVILLE DAM
From Year=1948 To Year=2006
Precipitation Total Snowfall
Mean High Year Low Year 1 Day Max. >=
0.01 in.		 >=
0.10 in.		 >=
0.50 in.		 >=
1.00 in.		 Mean High Year
in. in. - in. - in. dd/yyyy
or
yyyymmdd		 # Days # Days # Days # Days in. in. -
January 11.88 30.74 1953 0.32 1985 4.12 15/1956 21 17 9 4 9.5 81.5 1950
February 8.99 21.72 1961 1.23 1993 3.75 07/1996 18 14 6 3 3.1 31.5 1949
March 8.03 16.46 2003 2.13 1965 4.00 07/1957 20 15 6 2 0.9 19.5 1989
April 5.67 12.49 1993 0.99 1956 4.85 10/1981 17 12 4 1 0.0 0.0 1949
May 3.84 9.51 1960 0.62 1992 2.35 01/2001 14 9 2 1 0.0 0.0 1949
June 2.80 8.76 1981 0.34 1965 2.74 08/1981 10 7 2 0 0.0 0.0 1949
July 0.90 5.90 1983 0.00 1956 1.60 14/1983 5 2 1 0 0.0 0.0 1948
August 1.43 6.67 1968 0.00 1955 2.08 26/1956 5 3 1 0 0.0 0.0 1948
September 2.92 6.65 1972 0.02 1993 2.48 30/1951 8 6 2 1 0.0 0.0 1948
October 6.41 16.14 1950 0.10 1987 4.73 11/1959 14 11 5 2 0.0 0.0 1948
November 11.43 21.57 1995 2.45 1952 5.05 25/1999 20 16 8 3 0.7 10.3 1985
December 12.87 27.94 1996 3.44 1985 4.02 22/1964 21 17 9 4 3.1 18.5 1948
Annual 77.17 118.61 1996 52.80 1965 5.05 19991125 174 128 56 21 17.3 92.5 1950
Winter 33.75 56.52 1953 12.30 1977 4.12 19560115 60 47 25 11 15.7 92.0 1950
Spring 17.54 29.42 1993 9.15 1965 4.85 19810410 51 36 13 3 0.9 19.5 1989
Summer 5.12 11.89 1968 0.64 2003 2.74 19810608 20 12 3 1 0.0 0.0 1949
Fall 20.75 37.14 1950 4.14 1952 5.05 19991125 42 32 15 6 0.7 10.3 1985
Table updated on Jul 28, 2006
For monthly and annual means, thresholds, and sums:
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Seasons are climatological not calendar seasons
Winter = Dec., Jan., and Feb. Spring = Mar., Apr., and May
Summer = Jun., Jul., and Aug. Fall = Sep., Oct., and Nov. 






Western Regional Climate Center, wrcc@dri.edu