LOWER MONUMENTAL DAM, WASHINGTON

Period of Record General Climate Summary - Precipitation

Station:(454841) LOWER MONUMENTAL DAM
From Year=1962 To Year=2007
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 1.49 3.82 2006 0.23 1963 0.70 26/1975 10 5 0 0 1.0 3.0 1965
February 0.78 1.70 1963 0.09 1964 0.64 13/1970 8 3 0 0 0.6 5.0 1975
March 0.75 1.70 1971 0.05 1965 1.00 29/1967 8 2 0 0 0.0 0.0 1963
April 0.77 1.88 1978 0.05 1977 0.96 20/1970 7 2 0 0 0.0 0.0 1963
May 0.59 1.55 1972 0.01 1966 0.97 22/1972 6 2 0 0 0.0 0.0 1963
June 0.63 1.62 1971 0.05 1974 1.22 18/1965 5 2 0 0 0.0 0.0 1963
July 0.36 1.19 1975 0.00 1967 0.81 13/1975 2 1 0 0 0.0 0.0 1963
August 0.37 1.44 1977 0.00 1967 0.74 30/1977 3 1 0 0 0.0 0.0 1963
September 0.39 0.88 1971 0.00 1975 0.79 14/1966 3 1 0 0 0.0 0.0 1963
October 0.54 1.74 1968 0.00 1974 0.75 19/1979 5 2 0 0 0.0 0.0 1962
November 1.46 4.55 1973 0.13 1976 1.08 02/1968 11 5 0 0 0.0 0.0 1962
December 1.64 3.91 1973 0.29 1967 0.76 14/1977 12 6 1 0 2.1 7.0 1964
Annual 9.77 12.74 1978 5.02 1976 1.22 19650618 83 33 3 0 3.7 11.0 1963
Winter 3.91 6.63 1974 1.46 1966 0.76 19771214 31 14 1 0 3.7 10.0 1965
Spring 2.10 3.90 1967 0.50 1964 1.00 19670329 21 6 1 0 0.0 0.0 1963
Summer 1.36 2.83 1975 0.12 1973 1.22 19650618 11 4 0 0 0.0 0.0 1963
Fall 2.39 5.31 1968 0.24 1976 1.08 19681102 20 8 1 0 0.0 0.0 1963
Table updated on Oct 31, 2012
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