DULUTH HARBOR STN, MINNESOTA

Period of Record General Climate Summary - Temperature

Station:(212246) DULUTH HARBOR STN
From Year=1933 To Year=2004
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 19.6 3.1 11.4 51 09/2003 -32 28/1966 21.6 1990 -0.3 1994 0.0 26.5 30.8 13.9
February 24.8 8.1 16.5 54 22/1961 -37 03/1996 27.5 1987 4.6 1979 0.0 20.9 27.8 8.6
March 33.8 19.5 26.7 68 08/2000 -28 01/1962 34.5 2000 17.9 1996 0.0 13.0 28.7 1.9
April 45.3 31.4 38.4 81 29/1965 -14 02/1975 44.9 1987 33.0 1975 0.0 1.3 15.5 0.1
May 55.7 40.3 48.0 90 30/1986 21 03/1967 56.0 1980 42.8 1996 0.0 0.0 1.8 0.0
June 65.7 48.8 57.2 91 28/1961 30 08/1995 63.6 1987 53.4 1969 0.2 0.0 0.1 0.0
July 74.1 57.7 65.9 97 10/1980 37 08/2004 72.2 1980 61.4 1972 0.5 0.0 0.0 0.0
August 72.6 58.0 65.3 97 08/2001 32 22/2004 72.1 1983 56.2 2004 0.4 0.0 0.0 0.0
September 64.5 50.2 57.3 92 07/1976 29 26/1965 62.8 1998 52.3 1974 0.0 0.0 0.3 0.0
October 52.9 40.3 46.6 85 02/1992 14 27/1976 57.2 1963 40.0 2002 0.0 0.1 3.6 0.0
November 37.8 26.5 32.2 67 03/1978 -10 29/1976 42.1 2001 22.9 1995 0.0 8.0 21.2 0.5
December 25.0 11.5 18.2 57 03/1962 -27 19/1983 27.8 1997 6.5 1983 0.0 22.3 30.0 7.0
Annual 47.7 33.0 40.3 97 19800710 -37 19960203 45.2 1987 35.9 1972 1.1 92.2 159.8 32.0
Winter 23.1 7.6 15.4 57 19621203 -37 19960203 23.4 2002 6.6 1979 0.0 69.7 88.6 29.5
Spring 45.0 30.4 37.7 90 19860530 -28 19620301 42.3 1987 31.4 1996 0.0 14.3 46.0 2.0
Summer 70.8 54.9 62.8 97 19800710 30 19950608 66.7 1987 57.9 2004 1.0 0.0 0.1 0.0
Fall 51.7 39.0 45.4 92 19760907 -10 19761129 51.8 1963 40.8 1976 0.0 8.2 25.1 0.5
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