IRON MTN, CALIFORNIA

Period of Record General Climate Summary - Temperature

Station:(044297) IRON MOUNTAIN
From Year=1935 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 64.8 43.0 53.9 85 25/1946 21 22/1937 61.4 2003 42.0 1949 0.0 0.0 1.7 0.0
February 69.9 46.6 58.3 92 27/1986 27 06/1989 65.3 1954 50.9 1939 0.1 0.0 0.4 0.0
March 76.4 51.4 63.9 101 17/2007 31 01/1962 72.7 2004 57.3 1952 1.9 0.0 0.0 0.0
April 84.7 58.4 71.5 107 29/2007 36 07/1993 79.9 1989 62.9 1967 9.5 0.0 0.0 0.0
May 93.8 66.8 80.3 114 29/2003 42 02/1991 88.9 1997 72.5 1953 22.4 0.0 0.0 0.0
June 103.2 75.4 89.3 121 29/1994 53 23/1943 94.5 2006 82.1 1965 28.6 0.0 0.0 0.0
July 108.3 81.5 94.9 122 17/1998 64 16/1993 98.7 2009 90.5 1993 30.7 0.0 0.0 0.0
August 106.5 80.0 93.2 121 01/1967 60 11/1971 97.9 1995 89.2 1968 30.6 0.0 0.0 0.0
September 100.8 73.2 87.0 119 02/1950 55 15/1986 91.4 2009 79.9 1985 27.7 0.0 0.0 0.0
October 88.7 61.7 75.2 112 02/1980 33 31/1971 82.3 2003 68.3 1971 15.6 0.0 0.0 0.0
November 74.5 50.5 62.5 94 05/1980 22 06/1993 68.9 1995 55.5 1994 0.6 0.0 0.1 0.0
December 65.2 43.6 54.4 85 08/1938 22 11/1972 60.9 1950 49.2 1978 0.0 0.0 0.8 0.0
Annual 86.4 61.0 73.7 122 19980717 21 19370122 76.3 1996 71.4 1941 167.8 0.0 3.0 0.0
Winter 66.7 44.4 55.5 92 19860227 21 19370122 60.0 1981 47.6 1949 0.1 0.0 2.9 0.0
Spring 84.9 58.9 71.9 114 20030529 31 19620301 77.3 1989 67.6 1991 33.8 0.0 0.0 0.0
Summer 106.0 79.0 92.5 122 19980717 53 19430623 95.7 2006 89.2 1944 89.9 0.0 0.0 0.0
Fall 88.0 61.8 74.9 119 19500902 22 19931106 79.1 1995 70.7 1972 44.0 0.0 0.1 0.0
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