Weather Guide

Ann Arbor, Michigan, United States Average Monthly Weather

Weather score41Mixed annual avg

Best months: July, August, June

Across the year, average daytime temperatures are around 14°C, sunshine averages 6.3h per day, and rainfall totals about 784mm. Sea temperatures average 11°C across the year.

Ann Arbor, Michigan, United States, United States travel weather guide
Photo by Brad Switzer on Unsplash

Annual weather

Annual averages

Temp

14°C

Rain

784mm

Annual total

Sun

6.3h

Sea

11°C

Weather score

41

Mixed avg

Seasonal climate calendar

Trip feel

Cool

Average highs are around 16°C, so pack for cooler days.

Drier

Rainfall averages 57mm, which is relatively low for holiday planning.

Some sun

Sunshine averages 5.4h per day, enough for a balanced month.

Cool sea

Sea temperatures average 14°C, so the water can feel cool.

Map

Weather map

Compare Ann Arbor, Michigan, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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October16°C average high

October is close to Ann Arbor's yearly temperature average, giving a typical read on daytime heat.

Warmest monthsMay to September

This stretch sets the upper range for average daytime heat.

October57mm average rain

October sits near Ann Arbor's yearly rainfall average, so rain is a normal planning factor rather than an outlier.

Driest monthsJanuary to March, May, and September to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

October5.4 hours average sun

October sits close to Ann Arbor's yearly sunshine average, so it is a middle-of-the-pack month for bright days.

Brightest monthsMay to August

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

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October14°C average sea

October is close to Ann Arbor's yearly sea-temperature average, so swimming comfort is fairly typical.

Warmest seaJune to September

Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.

Weather score

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October30 weather score

October scores below Ann Arbor's yearly average, so the weather trade-offs are more noticeable.

Best weather monthsJune to August

These months have the strongest weather score in the monthly averages.

Hotels in Ann Arbor, Michigan, United States