What is the hottest month in Detroit?

July — average highs around 83° with lows near 66°.

What is the coldest month in Detroit?

January, when nights typically drop to 21° and days top out near 33°.

What is the rainiest month in Detroit?

July, averaging about 3.9 in of precipitation; the driest is November at roughly 2.2 in.

How warm is Detroit over the year?

The annual mean is 52°, with about 37 in of precipitation in a typical year (1991-2020 normals).

Detroit Climate — Monthly Normals 1991-2020

Climate in Detroit

The typical year in Detroit (Michigan), from 1991-2020 normals. For what's happening now, see the current forecast; a month ahead — the 30-day outlook.

Annual mean temp

10.9°C

average across 12 months

Annual precipitation

947 mm

yearly total

Warmest month

Jul

⌀ max 28°C

Coldest month

Jan

⌀ min -6°C

Temperatures by month

typical high (orange) · typical low (blue)

Jan

21° … 33°

Feb

21° … 36°

Mar

31° … 47°

Apr

38° … 57°

May

51° … 69°

Jun

62° … 80°

Jul

66° … 83°

Aug

65° … 81°

Sep

60° … 75°

Oct

48° … 62°

Nov

35° … 48°

Dec

28° … 40°

Precipitation by month

monthly totals across the year

Jan

66 mm

Feb

62 mm

Mar

73 mm

Apr

96 mm

May

86 mm

Jun

95 mm

Jul

100 mm

Aug

87 mm

Sep

75 mm

Oct

86 mm

Nov

55 mm

Dec

66 mm

The short version

RegionMichigan

Latitude42.3314°N

Annual mean10.9°C

Annual precipitation947 mm

More cities · climate

Windsor Ontario

Toledo Ohio

Cleveland Ohio

London Ontario

Akron Ohio

Fort Wayne Indiana

Grand Rapids Michigan

Kitchener Ontario

Columbus Ohio

Guelph Ontario

Hamilton Ontario

Burlington Ontario

Weather map — Detroit

Detroit →

Source · 1991-2020 normals

Detroit, MI Climate