CHINOOK, MONTANA

Period of Record General Climate Summary - Temperature

Station:(241722) CHINOOK
From Year=1948 To Year=2006
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 25.4 1.9 13.7 67 04/1984 -50 20/1954 32.0 2006 -13.1 1950 0.0 17.9 30.1 14.3
February 33.1 8.2 20.8 75 24/1995 -44 03/1982 37.0 1954 5.5 1959 0.0 12.2 27.5 8.3
March 43.6 17.7 30.6 82 31/2004 -36 03/1960 43.6 1963 11.5 2002 0.0 6.8 28.3 3.9
April 58.7 29.9 44.3 92 20/1980 -10 06/1975 52.5 1952 35.0 1975 0.0 0.4 18.8 0.2
May 69.7 40.6 55.2 96 27/1966 11 02/1954 61.8 1958 48.7 2002 0.5 0.0 4.5 0.0
June 77.5 48.6 63.1 104 29/1984 28 01/1979 70.9 1961 55.8 1951 2.9 0.0 0.2 0.0
July 85.6 52.8 69.2 105 14/1953 36 12/1987 74.1 1960 62.5 1993 10.3 0.0 0.0 0.0
August 84.5 50.8 67.6 109 05/1961 29 27/1988 74.0 1971 61.8 2002 9.6 0.0 0.1 0.0
September 73.0 40.2 56.6 104 04/1998 13 21/1995 63.1 1998 47.9 1965 1.9 0.0 4.9 0.0
October 60.9 30.3 45.6 90 01/1992 -24 29/1991 53.7 1963 36.2 2002 0.0 0.7 18.4 0.1
November 43.0 17.2 30.0 79 13/1999 -38 23/1985 44.3 1954 8.3 1985 0.0 6.3 27.4 3.1
December 31.1 7.3 19.2 66 02/1949 -50 22/1989 33.5 1957 -5.8 1983 0.0 14.2 29.9 9.5
Annual 57.2 28.8 43.0 109 19610805 -50 19540120 46.8 1963 38.3 1950 25.3 58.6 190.0 39.5
Winter 29.9 5.8 17.9 75 19950224 -50 19540120 29.7 1992 3.9 1950 0.0 44.4 87.5 32.1
Spring 57.3 29.4 43.3 96 19660527 -36 19600303 49.3 1963 32.9 2002 0.6 7.2 51.6 4.0
Summer 82.5 50.8 66.6 109 19610805 28 19790601 71.6 1961 62.7 1951 22.8 0.0 0.2 0.0
Fall 59.0 29.2 44.1 104 19980904 -38 19851123 51.2 1962 33.5 1985 2.0 7.1 50.6 3.3
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