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

-6° … 0°

Feb

-6° … 2°

Mar

-1° … 9°

Apr

4° … 14°

May

11° … 21°

Jun

16° … 27°

Jul

19° … 29°

Aug

18° … 27°

Sep

15° … 24°

Oct

9° … 17°

Nov

2° … 9°

Dec

-2° … 4°

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

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Weather map — Detroit

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Source · 1991-2020 normals

Detroit, MI Climate