ST MARY, MONTANA

Period of Record General Climate Summary - Temperature

Station:(247292) ST MARY
From Year=1981 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 32.3 13.8 23.0 60 21/2009 -32 14/2005 34.7 1986 6.5 1982 0.0 12.1 27.3 7.5
February 36.6 16.5 26.5 63 26/1992 -40 02/1989 36.4 1991 12.8 1989 0.0 8.5 24.7 4.7
March 42.2 21.9 32.0 72 30/2004 -29 08/2002 39.8 1986 18.6 2002 0.0 4.2 25.9 2.1
April 51.6 28.1 39.9 82 28/1987 0 02/2002 46.8 1987 29.5 2011 0.0 1.2 21.0 0.1
May 60.7 35.6 48.2 93 20/2008 15 02/2009 53.8 1993 38.7 2010 0.0 0.1 10.4 0.0
June 68.7 42.2 55.4 95 25/1988 27 08/1982 61.2 1988 48.3 2010 0.3 0.0 1.8 0.0
July 78.1 46.9 62.5 102 13/2002 29 05/1999 70.3 2007 54.5 1993 2.7 0.0 0.1 0.0
August 78.7 45.4 62.1 98 14/1994 20 24/1992 67.7 2001 53.0 2010 3.6 0.0 0.3 0.0
September 67.4 38.8 53.1 95 02/1998 12 23/2000 59.9 1998 43.2 1985 0.8 0.0 5.9 0.0
October 53.7 32.9 43.5 87 01/1992 -8 31/1984 48.6 1988 37.4 1984 0.0 0.9 13.7 0.2
November 38.9 23.8 31.5 70 07/1999 -24 26/1985 39.6 1999 11.0 1985 0.0 6.1 23.0 1.9
December 31.5 14.9 23.2 58 29/1986 -38 24/1983 32.7 1999 6.9 1983 0.0 13.7 28.4 6.0
Annual 53.4 30.1 41.7 102 20020713 -40 19890202 44.7 1987 38.4 1982 7.5 47.0 182.5 22.4
Winter 33.4 15.0 24.2 63 19920226 -40 19890202 32.9 1992 16.7 1982 0.0 34.3 80.5 18.2
Spring 51.5 28.5 40.0 93 20080520 -29 20020308 44.9 1992 32.4 2011 0.0 5.6 57.3 2.1
Summer 75.2 44.8 60.0 102 20020713 20 19920824 62.7 2001 52.6 2010 6.7 0.0 2.2 0.0
Fall 53.3 31.8 42.7 95 19980902 -24 19851126 47.0 2001 31.5 1985 0.8 7.0 42.5 2.1
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