RIMROCK TIETON DAM, WASHINGTON

Period of Record General Climate Summary - Temperature

Station:(457038) RIMROCK TIETON DAM
From Year=1917 To Year=1977
Monthly Averages Daily Extremes Monthly Extremes Max. Temp. Min. Temp.
Max. Min. Mean High Date Low Date Highest
Mean
Year Lowest
Mean
Year >=
90 F
<=
32 F
<=
32 F
<=
0 F
F F F F dd/yyyy
or
yyyymmdd
F dd/yyyy
or
yyyymmdd
F - F - # Days # Days # Days # Days
January 34.5 18.2 26.3 59 16/1919 -25 21/1927 36.1 1953 11.8 1950 0.0 11.1 29.1 2.7
February 39.9 21.3 30.6 67 03/1962 -22 03/1950 37.6 1963 16.5 1936 0.0 3.7 26.6 1.1
March 45.7 25.5 35.6 72 18/1947 -8 05/1955 43.3 1934 29.7 1955 0.0 0.9 27.7 0.1
April 54.5 31.3 42.9 86 29/1926 4 01/1936 51.8 1934 37.5 1975 0.0 0.0 18.1 0.0
May 62.9 36.8 49.9 92 17/1920 20 01/1954 57.1 1958 44.2 1977 0.1 0.0 8.1 0.0
June 69.8 43.1 56.4 96 25/1926 26 01/1933 62.0 1969 51.5 1976 0.8 0.0 1.3 0.0
July 79.5 47.0 63.2 103 17/1917 30 07/1971 67.0 1958 58.2 1948 4.9 0.0 0.1 0.0
August 78.2 45.7 62.0 102 05/1961 30 25/1921 67.3 1958 57.9 1964 3.3 0.0 0.1 0.0
September 70.4 40.3 55.4 95 12/1944 19 25/1926 61.5 1967 48.4 1921 0.4 0.0 4.0 0.0
October 58.1 33.4 45.8 86 08/1936 9 25/1919 52.5 1952 41.8 1919 0.0 0.1 14.1 0.0
November 43.7 27.0 35.3 68 19/1936 -6 15/1955 41.8 1949 27.9 1955 0.0 1.8 24.2 0.1
December 36.3 22.0 29.2 59 14/1924 -28 12/1919 37.8 1917 20.6 1919 0.0 8.5 28.5 1.1
Annual 56.1 32.6 44.4 103 19170717 -28 19191212 47.7 1934 41.6 1948 9.4 26.1 181.8 5.1
Winter 36.9 20.5 28.7 67 19620203 -28 19191212 35.4 1934 21.0 1949 0.0 23.3 84.1 4.9
Spring 54.4 31.2 42.8 92 19200517 -8 19550305 49.4 1934 38.0 1955 0.1 0.9 53.9 0.1
Summer 75.8 45.3 60.5 103 19170717 26 19330601 65.1 1958 56.9 1976 9.0 0.0 1.5 0.0
Fall 57.4 33.6 45.5 95 19440912 -6 19551115 48.4 1937 41.7 1961 0.4 1.9 42.3 0.1
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