Detroit weather by month
What a typical year looks like in Detroit, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at DETROIT CITY AP, 8 km from Detroit; records cover 1934–2026.
The year at a glance
- Precipitation a year
- 29.9 in759 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 15
- First fall freeze
- Oct 29
- Heating degree days
- 6,106
- Cooling degree days
- 855
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 3°−16° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Detroit in January
Highs average 32°0° and lows 20°−7°, with 1.5 in37 mm of precipitation in a typical January.
- Record high
- 67°19° (1950)
- Record low
- −17°−27° (1994)
- Heating degree days
- 1206
- Cooling degree days
- 0
Detroit in February
Highs average 35°2° and lows 21°−6°, with 1.4 in36 mm of precipitation in a typical February.
- Record high
- 74°23° (2024)
- Record low
- −16°−27° (1934)
- Heating degree days
- 1036
- Cooling degree days
- 0
Detroit in March
Highs average 45°7° and lows 28°−2°, with 2 in51 mm of precipitation in a typical March.
- Record high
- 83°28° (2012)
- Record low
- −3°−19° (2003)
- Heating degree days
- 880
- Cooling degree days
- 1
Detroit in April
Highs average 58°14° and lows 39°4°, with 2.8 in72 mm of precipitation in a typical April.
- Record high
- 89°32° (1990)
- Record low
- 14°−10° (1954)
- Heating degree days
- 511
- Cooling degree days
- 4
Detroit in May
Highs average 70°21° and lows 50°10°, with 3.5 in89 mm of precipitation in a typical May.
- Record high
- 93°34° (1942)
- Record low
- 30°−1° (1943)
- Heating degree days
- 213
- Cooling degree days
- 47
Detroit in June
Highs average 79°26° and lows 60°16°, with 3.1 in79 mm of precipitation in a typical June.
- Record high
- 104°40° (1934)
- Record low
- 38°3° (1945)
- Heating degree days
- 33
- Cooling degree days
- 174
Detroit in July
Highs average 84°29° and lows 65°18°, with 3.2 in82 mm of precipitation in a typical July.
- Record high
- 105°41° (1934)
- Record low
- 42°6° (1972)
- Heating degree days
- 2
- Cooling degree days
- 287
Detroit in August
Highs average 81°27° and lows 64°18°, with 3.1 in79 mm of precipitation in a typical August.
- Record high
- 102°39° (2001)
- Record low
- 43°6° (1934)
- Heating degree days
- 7
- Cooling degree days
- 241
Detroit in September
Highs average 74°24° and lows 56°13°, with 3.1 in78 mm of precipitation in a typical September.
- Record high
- 100°38° (1939)
- Record low
- 32°0° (1942)
- Heating degree days
- 89
- Cooling degree days
- 91
Detroit in OctoberThis month
Highs average 61°16° and lows 45°7°, with 2.3 in58 mm of precipitation in a typical October.
- Record high
- 92°33° (1963)
- Record low
- 24°−4° (1965)
- Heating degree days
- 380
- Cooling degree days
- 10
Detroit in November
Highs average 48°9° and lows 34°1°, with 2.2 in55 mm of precipitation in a typical November.
- Record high
- 81°27° (1950)
- Record low
- 5°−15° (1958)
- Heating degree days
- 711
- Cooling degree days
- 0
Detroit in December
Highs average 37°3° and lows 26°−3°, with 1.7 in44 mm of precipitation in a typical December.
- Record high
- 70°21° (1998)
- Record low
- −5°−21° (1960)
- Heating degree days
- 1038
- Cooling degree days
- 0