About Climate Summary Tables

Temperature Summary for Station USW00014839 - MILWAUKEE MITCHELL AIRPORT, WI

1991-2020 NCEI Normals
Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
Max °F 30.9 34.2 44.2 54.7 66.5 76.8 81.9 80.3 73.5 61.3 47.8 36.1 57.4
Min °F 17.2 20 28.7 37.8 47.8 58.4 64.7 64.2 56.4 44.7 33.1 23 41.3
Mean °F 24 27.1 36.4 46.3 57.1 67.6 73.3 72.3 65 53 40.4 29.5 49.3
HDD
base 65		 1269 1061 886 566 278 64 6 8 94 383 737 1099 6450
CDD
base 65		 0 0 1 4 34 142 263 232 93 11 0 0 780

 

Temperature Extremes - Period of Record: 1938-04-01 to 2025-04-20
*Based on latest available data for this station
Month High
Mean °F		 Year Low
Mean °F		 Year 1-Day
Max °F		 Date 1-Day
Min °F		 Date
January 34 2006 8.3 1977 63 2008-01-07 -26 1982-01-17
February 34.5 1998 14.3 2015 74 2024-02-27 -26 1996-02-03
March 48.8 2012 21.5 1960 84 2012-03-21 -10 1962-03-01
April 51 2010 37.7 1975 91 1980-04-22 12 1982-04-07
May 63.2 1991 49.5 1966 95 2018-05-27 21 1966-05-10
June 72.2 1987 58.9 1969 101 1988-06-21 33 1945-06-04
July 78.6 2012 66.7 1962 103 2012-07-05 40 1965-07-01
August 76.3 1955 65.6 1950 103 1988-08-01 44 1982-08-29
September 68.6 2016 58 1974 98 1953-09-01 28 1974-09-23
October 59.4 1947 45.6 1980 89 1963-10-06 18 1981-10-24
November 47.4 2001 29.4 1959 77 2022-11-10 -5 1950-11-24
December 37.7 2015 13.2 1963 68 2021-12-16 -20 1983-12-24
Annual 60.3 2012 35.5 1963 103 2012-07-05 -26 1996-02-03
Winter 38.4 2002 7.8 1963 74 2024-02-27 -26 1996-02-03
Spring 60.9 2012 30.8 1971 95 2018-05-27 -10 1962-03-01
Summer 84 1988 55.5 1960 103 1988-08-01 33 1945-06-04
Autumn 65.3 2016 37.3 1976 98 1953-09-01 -5 1950-11-24

 

Temperature Threshold Climatology Derived from 1991-2020 Normals
*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding
Month # Days
Max ≥ 90°F		 # Days
Max ≤ 32°F		 # Days
Min ≤ 32°F		 # Days
Min ≤ 0°F
January 0 17.9 28.4 3.5
February 0 13.1 25.2 1.7
March 0 4.7 21 0.2
April 0 0.2 6.1 0
May 0.3 0 0.2 0
June 2.2 0 0 0
July 3.6 0 0 0
August 2.5 0 0 0
September 0.7 0 0 0
October 0 0 1.9 0
November 0 2.5 14.5 0
December 0 11.8 25.4 1.2
Annual 9.1 50.1 122.8 6.6
Winter 0 42.8 79 6.4
Spring 0.3 4.9 27.4 0.2
Summer 8.2 0 0 0
Autumn 0.7 2.5 16.5 0