Mackinaw City weather by month
What a typical year looks like in Mackinaw City, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Pellston Regional Airport, 25 km from Mackinaw City; records cover 1948–2026.
The year at a glance
- Precipitation a year
- 30 in762 mm
- Snow a year
- Rare
- Last spring freeze
- May 27
- First fall freeze
- Sep 16
- Heating degree days
- 8,390
- Cooling degree days
- 254
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −18°−28° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Mackinaw City in January
Highs average 27°−3° and lows 9°−13°, with 1.6 in41 mm of precipitation in a typical January.
- Record high
- 53°12° (1996)
- Record low
- −37°−38° (1948)
- Heating degree days
- 1463
- Cooling degree days
- 0
Mackinaw City in February
Highs average 29°−2° and lows 7°−14°, with 1.1 in29 mm of precipitation in a typical February.
- Record high
- 68°20° (2024)
- Record low
- −37°−38° (1959)
- Heating degree days
- 1316
- Cooling degree days
- 0
Mackinaw City in March
Highs average 39°4° and lows 16°−9°, with 1.7 in44 mm of precipitation in a typical March.
- Record high
- 85°29° (2012)
- Record low
- −34°−37° (1948)
- Heating degree days
- 1178
- Cooling degree days
- 0
Mackinaw City in April
Highs average 52°11° and lows 27°−3°, with 2.4 in62 mm of precipitation in a typical April.
- Record high
- 91°33° (1986)
- Record low
- −14°−26° (2003)
- Heating degree days
- 767
- Cooling degree days
- 1
Mackinaw City in May
Highs average 66°19° and lows 38°3°, with 2.8 in71 mm of precipitation in a typical May.
- Record high
- 94°34° (1998)
- Record low
- 11°−12° (1966)
- Heating degree days
- 409
- Cooling degree days
- 13
Mackinaw City in June
Highs average 76°24° and lows 48°9°, with 2.6 in65 mm of precipitation in a typical June.
- Record high
- 99°37° (1995)
- Record low
- 25°−4° (1949)
- Heating degree days
- 142
- Cooling degree days
- 50
Mackinaw City in July
Highs average 79°26° and lows 53°12°, with 2.7 in68 mm of precipitation in a typical July.
- Record high
- 98°37° (1977)
- Record low
- 28°−2° (1965)
- Heating degree days
- 60
- Cooling degree days
- 92
Mackinaw City in August
Highs average 78°26° and lows 52°11°, with 2.9 in72 mm of precipitation in a typical August.
- Record high
- 98°37° (1976)
- Record low
- 29°−2° (1976)
- Heating degree days
- 79
- Cooling degree days
- 72
Mackinaw City in September
Highs average 70°21° and lows 45°7°, with 3.4 in86 mm of precipitation in a typical September.
- Record high
- 96°36° (1953)
- Record low
- 19°−7° (2000)
- Heating degree days
- 253
- Cooling degree days
- 24
Mackinaw City in OctoberThis month
Highs average 57°14° and lows 35°2°, with 4.2 in107 mm of precipitation in a typical October.
- Record high
- 87°31° (2005)
- Record low
- 4°−16° (1969)
- Heating degree days
- 595
- Cooling degree days
- 2
Mackinaw City in November
Highs average 44°6° and lows 27°−3°, with 2.7 in69 mm of precipitation in a typical November.
- Record high
- 78°26° (2020)
- Record low
- −23°−31° (1950)
- Heating degree days
- 893
- Cooling degree days
- 0
Mackinaw City in December
Highs average 33°0° and lows 18°−8°, with 1.9 in48 mm of precipitation in a typical December.
- Record high
- 64°18° (1951)
- Record low
- −31°−35° (1958)
- Heating degree days
- 1235
- Cooling degree days
- 0