Gwinn weather by month
What a typical year looks like in Gwinn, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at K.i. Sawyer Wwtp, 7 km from Gwinn; records cover 2015–2026.
The year at a glance
- Precipitation a year
- 32.7 in830 mm
- Snow a year
- Rare
- Last spring freeze
- May 13
- First fall freeze
- Oct 11
- Heating degree days
- 8,615
- Cooling degree days
- 245
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −12°−24° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Gwinn in January
Highs average 25°−4° and lows 10°−12°, with 1.8 in45 mm of precipitation in a typical January.
- Record high
- 42°6° (2016)
- Record low
- −20°−29° (2019)
- Heating degree days
- 1483
- Cooling degree days
- 0
Gwinn in February
Highs average 28°−2° and lows 8°−13°, with 1.4 in35 mm of precipitation in a typical February.
- Record high
- 56°13° (2024)
- Record low
- −22°−30° (2019)
- Heating degree days
- 1321
- Cooling degree days
- 0
Gwinn in March
Highs average 36°2° and lows 18°−8°, with 1.8 in44 mm of precipitation in a typical March.
- Record high
- 62°17° (2024)
- Record low
- −16°−27° (2019)
- Heating degree days
- 1181
- Cooling degree days
- 0
Gwinn in April
Highs average 48°9° and lows 29°−2°, with 2.5 in65 mm of precipitation in a typical April.
- Record high
- 78°26° (2016)
- Record low
- 4°−16° (2016)
- Heating degree days
- 796
- Cooling degree days
- 0
Gwinn in May
Highs average 63°17° and lows 41°5°, with 3.1 in80 mm of precipitation in a typical May.
- Record high
- 87°31° (2020)
- Record low
- 25°−4° (2017)
- Heating degree days
- 402
- Cooling degree days
- 5
Gwinn in June
Highs average 73°23° and lows 51°10°, with 3.2 in82 mm of precipitation in a typical June.
- Record high
- 94°34° (2025)
- Record low
- 32°0° (2015)
- Heating degree days
- 130
- Cooling degree days
- 38
Gwinn in July
Highs average 78°26° and lows 56°13°, with 3.3 in83 mm of precipitation in a typical July.
- Record high
- 97°36° (2026)
- Record low
- 40°4° (2016)
- Heating degree days
- 49
- Cooling degree days
- 115
Gwinn in August
Highs average 76°24° and lows 54°12°, with 2.9 in72 mm of precipitation in a typical August.
- Record high
- 92°33° (2015)
- Record low
- 35°2° (2017)
- Heating degree days
- 71
- Cooling degree days
- 72
Gwinn in September
Highs average 68°20° and lows 46°8°, with 4 in102 mm of precipitation in a typical September.
- Record high
- 90°32° (2023)
- Record low
- 32°0° (2022)
- Heating degree days
- 261
- Cooling degree days
- 15
Gwinn in OctoberThis month
Highs average 53°12° and lows 35°2°, with 4.1 in103 mm of precipitation in a typical October.
- Record high
- 82°28° (2024)
- Record low
- 20°−7° (2020)
- Heating degree days
- 645
- Cooling degree days
- 0
Gwinn in November
Highs average 39°4° and lows 26°−3°, with 2.5 in64 mm of precipitation in a typical November.
- Record high
- 70°21° (2020)
- Record low
- 7°−14° (2019)
- Heating degree days
- 968
- Cooling degree days
- 0
Gwinn in December
Highs average 29°−1° and lows 16°−9°, with 2.1 in54 mm of precipitation in a typical December.
- Record high
- 50°10° (2017)
- Record low
- −13°−25° (2017)
- Heating degree days
- 1308
- Cooling degree days
- 0