WEST YELLOWSTONE, MONTANA

Period of Record General Climate Summary - Temperature

Station:(248857) WEST YELLOWSTONE
From Year=1924 To Year=2012
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 24.2 -0.2 12.0 47 31/1931 -60 12/1963 24.0 1953 -4.5 1930 0.0 25.5 30.6 14.4
February 30.8 2.5 16.6 56 23/1947 -66 09/1933 24.8 1958 4.6 1933 0.0 15.7 28.0 11.7
March 38.0 8.7 23.4 61 23/1939 -43 05/1955 32.3 1992 14.3 1955 0.0 7.4 30.5 8.1
April 47.6 19.7 33.6 76 29/1939 -26 05/1936 41.6 1934 26.4 1970 0.0 0.8 28.6 1.2
May 59.3 28.7 44.0 88 30/1936 0 02/1954 50.8 1958 38.5 1929 0.0 0.0 22.7 0.0
June 68.5 35.3 51.9 93 23/1936 18 06/1924 58.6 1988 45.9 1951 0.1 0.0 10.2 0.0
July 79.2 39.6 59.4 97 19/1936 20 18/1948 65.1 1936 51.8 1993 1.4 0.0 3.6 0.0
August 77.2 37.2 57.2 96 13/1940 15 17/1928 62.7 1971 52.3 1928 0.6 0.0 7.6 0.0
September 66.4 29.4 47.9 91 03/1950 -9 24/1926 54.3 1990 39.9 1965 0.0 0.1 20.7 0.0
October 52.5 22.1 37.3 83 11/1934 -20 29/1971 44.0 1988 31.5 1969 0.0 1.0 28.3 0.3
November 34.5 10.3 22.4 64 03/1962 -38 21/1929 30.6 1949 12.8 1929 0.0 12.7 29.2 7.2
December 25.3 1.8 13.5 54 03/1946 -59 19/1924 23.3 1933 3.7 1990 0.0 24.5 30.5 13.5
Annual 50.3 19.6 35.0 97 19360719 -66 19330209 39.1 1934 31.8 1924 2.2 87.8 270.7 56.5
Winter 26.8 1.4 14.1 56 19470223 -66 19330209 22.3 1934 7.4 1949 0.0 65.8 89.1 39.6
Spring 48.3 19.1 33.7 88 19360530 -43 19550305 41.0 1934 29.0 1955 0.0 8.3 81.8 9.4
Summer 75.0 37.4 56.2 97 19360719 15 19280817 60.2 1936 52.1 1993 2.1 0.0 21.4 0.0
Fall 51.1 20.6 35.9 91 19500903 -38 19291121 41.0 1963 32.2 1961 0.0 13.8 78.3 7.5
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