Big Bay weather by month
What a typical year looks like in Big Bay, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Big Bay 1nw, 4 km from Big Bay; records cover 1945–2026.
The year at a glance
- Precipitation a year
- 32.8 in833 mm
- Snow a year
- 132 in336 cm
- Last spring freeze
- May 20
- First fall freeze
- Oct 6
- Heating degree days
- 8,687
- Cooling degree days
- 263
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −8°−22° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Big Bay in January
Highs average 24°−5° and lows 10°−12°, with 2.4 in60 mm of precipitation and 32 in82 cm of snow in a typical January.
- Record high
- 53°12° (1981)
- Record low
- −20°−29° (1982)
- Heating degree days
- 1483
- Cooling degree days
- 0
Big Bay in February
Highs average 27°−3° and lows 11°−11°, with 1.7 in44 mm of precipitation and 29 in73 cm of snow in a typical February.
- Record high
- 60°16° (1991)
- Record low
- −32°−36° (1979)
- Heating degree days
- 1288
- Cooling degree days
- 0
Big Bay in March
Highs average 36°2° and lows 18°−8°, with 1.4 in37 mm of precipitation and 12 in29 cm of snow in a typical March.
- Record high
- 83°28° (2012)
- Record low
- −18°−28° (1972)
- Heating degree days
- 1184
- Cooling degree days
- 0
Big Bay in April
Highs average 47°8° and lows 28°−2°, with 2.9 in72 mm of precipitation and 13 in33 cm of snow in a typical April.
- Record high
- 92°33° (1980)
- Record low
- 3°−16° (1972)
- Heating degree days
- 828
- Cooling degree days
- 0
Big Bay in May
Highs average 60°16° and lows 40°4°, with 2.8 in71 mm of precipitation and 1.1 in2.8 cm of snow in a typical May.
- Record high
- 95°35° (2010)
- Record low
- 18°−8° (1997)
- Heating degree days
- 482
- Cooling degree days
- 12
Big Bay in June
Highs average 70°21° and lows 50°10°, with 3.3 in83 mm of precipitation in a typical June.
- Record high
- 99°37° (2022)
- Record low
- 28°−2° (2015)
- Heating degree days
- 197
- Cooling degree days
- 41
Big Bay in July
Highs average 75°24° and lows 56°13°, with 3.1 in78 mm of precipitation in a typical July.
- Record high
- 103°39° (1988)
- Record low
- 33°1° (1969)
- Heating degree days
- 76
- Cooling degree days
- 96
Big Bay in August
Highs average 75°24° and lows 55°13°, with 3.3 in84 mm of precipitation in a typical August.
- Record high
- 102°39° (1976)
- Record low
- 34°1° (1977)
- Heating degree days
- 82
- Cooling degree days
- 83
Big Bay in September
Highs average 68°20° and lows 48°9°, with 3.6 in92 mm of precipitation in a typical September.
- Record high
- 95°35° (2005)
- Record low
- 24°−4° (1991)
- Heating degree days
- 244
- Cooling degree days
- 29
Big Bay in OctoberThis month
Highs average 54°12° and lows 38°3°, with 3.3 in83 mm of precipitation and 1.3 in3.3 cm of snow in a typical October.
- Record high
- 89°32° (2023)
- Record low
- 15°−9° (1984)
- Heating degree days
- 599
- Cooling degree days
- 2
Big Bay in November
Highs average 41°5° and lows 27°−3°, with 2.8 in71 mm of precipitation and 18 in46 cm of snow in a typical November.
- Record high
- 79°26° (2020)
- Record low
- −2°−19° (1976)
- Heating degree days
- 934
- Cooling degree days
- 0
Big Bay in December
Highs average 29°−2° and lows 18°−8°, with 2.3 in59 mm of precipitation and 27 in67 cm of snow in a typical December.
- Record high
- 63°17° (1982)
- Record low
- −15°−26° (1983)
- Heating degree days
- 1290
- Cooling degree days
- 0