Detroit Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Detroit, Michigan during each month of the year.

The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F each month in Detroit, scroll down farther. There are also monthly and yearly counts of days with cold weather.

All the numbers are long-term historical averages based on climate data gathered from 1981 to 2010.

Average Detroit temperatures
High °F Low °F   High °C Low °C
32 19 January 0 -7
35 21 February 2 -6
46 29 March 8 -2
59 39 April 15 4
70 49 May 21 10
79 60 June 26 15
83 64 July 29 18
81 63 August 27 17
74 55 September 23 13
62 43 October 16 6
49 34 November 9 1
36 24 December 2 -4
59 42 Year 15 5

Days of Hot Weather in Detroit

Detroit typically has ten days in a summer when temperatures rise into the 90s Fahrenheit. Just one day per decade on average heats up to 100 °F (38 °C) or more.

Days per month in Detroit of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 0 0 0
February 0 0 0
March 0 0 0
April 6 1 0
May 14 5 0
June 26 14 2
July 31 23 5
August 30 19 3
September 21 7 1
October 6 1 0
November 1 0 0
December 0 0 0
Year 135 70 10

How Often Detroit Has Cold Temperatures

Most winter nights have freezing temperatures in Detroit and normally 15 nights drop to 10 °F or below. The city averages just four days a year when the thermometer plunges to 0 °F (-18 °C) or lower.

From November to April, it can remain below freezing all day long. Detroit typically has 41 frosty days a year.

Days per month on average in Detroit when the minimum temperature drops to 32, 20, or 10 °F or below
  10 °F
-12 °C
20 °F
-8 °C
32 °F
0 °C
January 7 15 27
February 4 12 24
March 1 5 20
April 0 0 6
May 0 0 0
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 2
November 0 1 13
December 3 10 24
Year 15 44 115
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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