Bay City (MI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bay City.
Climate overview of Bay City
Bay City, Michigan, United States of America, sees big temperature differences between seasons, with July peaking at 28°C (82°F) and January dropping to -1°C (30°F).
Bay City sees a moderate amount of rain/snowfall, totalling around 900 mm (35 in) per year. It experiences warm summers and very cold winters, creating some seasonal variation.
Bay City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bay City - and find the best time to visit.
Monthly Temperature in Bay City
Visitors to Bay City can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in July, the warmest time of the year, to a very cold -1°C (30°F) during cooler months like January.
At night, you can expect temperatures ranging from 16°C (61°F) in July to around -10°C (14°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bay City
Generally, Bay City experiences moderate precipitation patterns, averaging 900 mm (35 in) yearly. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, August it receives high rainfall, averaging 120 mm (4.7 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month February brings less snowfall, with 45 mm (1.8 in) over 9 snowy days. For more details, please visit our Bay City Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Bay City
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July and September
- Warmest weather: July and August
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -10°C (14°F).
Frequently asked questions about the climate in Bay City
What is the best time to visit Bay City?
May, June, July and September typically offer the most optimal weather in Bay City. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Bay City has warm summers and very cold winters.
What temperatures can I expect in Bay City?
Daytime highs range from -1°C (30°F) in January to 28°C (82°F) in July. Nighttime lows range from -10°C (14°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Bay City get?
Annual rainfall is around 900 mm (35 in). August is the wettest month with 120 mm (4.7 in), while February is the driest with 45 mm (1.8 in).
Bay City 3-Day Forecast
Bay City (MI) 3-Day Forecast
Bay City on the map
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