Bay Port weather by month
What a typical year looks like in Bay Port, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Filion 5nnw, 25 km from Bay Port; records cover 1997–2026.
The year at a glance
- Precipitation a year
- 34.1 in866 mm
- Snow a year
- Rare
- Last spring freeze
- May 5
- First fall freeze
- Oct 18
- Heating degree days
- 7,534
- Cooling degree days
- 376
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −6°−21° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Bay Port in January
Highs average 28°−2° and lows 15°−9°, with 2 in51 mm of precipitation in a typical January.
- Record high
- 60°16° (2008)
- Record low
- −16°−27° (2004)
- Heating degree days
- 1354
- Cooling degree days
- 0
Bay Port in February
Highs average 29°−2° and lows 14°−10°, with 1.8 in45 mm of precipitation in a typical February.
- Record high
- 72°22° (2024)
- Record low
- −21°−29° (2015)
- Heating degree days
- 1218
- Cooling degree days
- 0
Bay Port in March
Highs average 39°4° and lows 23°−5°, with 1.9 in49 mm of precipitation in a typical March.
- Record high
- 85°29° (2012)
- Record low
- −19°−28° (2014)
- Heating degree days
- 1070
- Cooling degree days
- 0
Bay Port in April
Highs average 52°11° and lows 32°0°, with 3.5 in88 mm of precipitation in a typical April.
- Record high
- 87°31° (2002)
- Record low
- 6°−14° (2016)
- Heating degree days
- 690
- Cooling degree days
- 0
Bay Port in May
Highs average 65°18° and lows 43°6°, with 3.4 in86 mm of precipitation in a typical May.
- Record high
- 92°33° (2006)
- Record low
- 26°−3° (2018)
- Heating degree days
- 360
- Cooling degree days
- 22
Bay Port in June
Highs average 75°24° and lows 53°12°, with 3.5 in89 mm of precipitation in a typical June.
- Record high
- 96°36° (2022)
- Record low
- 35°2° (1998)
- Heating degree days
- 107
- Cooling degree days
- 77
Bay Port in July
Highs average 79°26° and lows 57°14°, with 3.4 in86 mm of precipitation in a typical July.
- Record high
- 98°37° (2012)
- Record low
- 40°4° (2026)
- Heating degree days
- 38
- Cooling degree days
- 133
Bay Port in August
Highs average 77°25° and lows 56°13°, with 3.8 in96 mm of precipitation in a typical August.
- Record high
- 94°34° (2006)
- Record low
- 36°2° (1998)
- Heating degree days
- 50
- Cooling degree days
- 101
Bay Port in September
Highs average 70°21° and lows 50°10°, with 3.2 in80 mm of precipitation in a typical September.
- Record high
- 94°34° (2011)
- Record low
- 32°0° (2014)
- Heating degree days
- 186
- Cooling degree days
- 38
Bay Port in OctoberThis month
Highs average 58°14° and lows 41°5°, with 2.9 in74 mm of precipitation in a typical October.
- Record high
- 88°31° (2007)
- Record low
- 23°−5° (2000)
- Heating degree days
- 492
- Cooling degree days
- 5
Bay Port in November
Highs average 45°7° and lows 31°0°, with 2.7 in67 mm of precipitation in a typical November.
- Record high
- 78°26° (2020)
- Record low
- 8°−13° (2013)
- Heating degree days
- 813
- Cooling degree days
- 0
Bay Port in December
Highs average 33°1° and lows 22°−5°, with 2.2 in55 mm of precipitation in a typical December.
- Record high
- 66°19° (2001)
- Record low
- −7°−22° (2004)
- Heating degree days
- 1156
- Cooling degree days
- 0