Current Weather and Forecast in Ann Arbor, MI
Michigan, United States 🇺🇸
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About the weather in Ann Arbor
Ann Arbor has a humid continental climate. July is the warmest month, with average highs of 82°, and January the coldest, when nights fall to around 19°. Over a whole year it rains on roughly 130 days.
Ann Arbor climate guide: monthly averages, seasons and the best time to visit
Common questions
Which month is wettest in Ann Arbor?
July, at 3.6 inches (91 mm) over about 12 days. November is the driest month, at 2.3 inches (58 mm).
When is Ann Arbor at its coldest?
January, with highs of 32°F (0°C) and lows near 19°F (-7°C). The coldest day in the 2015-2024 record fell to -25°F (-32°C).
When is Ann Arbor at its hottest?
July, averaging 82°F (28°C) by day and 64°F (18°C) overnight. The hottest single day in our 2015-2024 record for this location reached 94°F (34°C).
What is the best month to go to Ann Arbor?
June to October is the sweet spot for Ann Arbor - these are the warmest and brightest weeks of the year. Expect 75°F (24°C) in the afternoon and around 11 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in June.
Does it freeze in Ann Arbor?
Average overnight lows sit at or below 0°C in 4 months of the year, December through March.
Does it snow in Ann Arbor?
Yes - about 19 days a year carry measurable snowfall, concentrated November through April.