Skip to content
VSWeather

Ann Arbor, MI weather and climate

Washtenaw County, MI · population 121,179 · about 892 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Ann Arbor's own coordinates.

The year at a glance

Sunny days
168
clear or partly cloudy, per year
Precipitation
35 in
per year
Wet days
133
rain or snow per year
Snowfall
59 in
per year
Hot days
12
above 90 °F
Freezing nights
143
at or below 32 °F
Humidity
71%
average relative
Average temperature
48 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 32 °FDaily high, Feb: 35 °FDaily high, Mar: 46 °FDaily high, Apr: 59 °FDaily high, May: 71 °FDaily high, Jun: 80 °FDaily high, Jul: 84 °FDaily high, Aug: 82 °FDaily high, Sep: 75 °FDaily high, Oct: 62 °FDaily high, Nov: 48 °FDaily high, Dec: 36 °FDaily low, Jan: 16 °FDaily low, Feb: 17 °FDaily low, Mar: 25 °FDaily low, Apr: 35 °FDaily low, May: 46 °FDaily low, Jun: 55 °FDaily low, Jul: 59 °FDaily low, Aug: 58 °FDaily low, Sep: 50 °FDaily low, Oct: 39 °FDaily low, Nov: 30 °FDaily low, Dec: 22 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high323546597180848275624836
Daily low161725354655595850393022

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovAnn Arbor, Jan: 2.4 inAnn Arbor, Feb: 2.1 inAnn Arbor, Mar: 2.5 inAnn Arbor, Apr: 3.6 inAnn Arbor, May: 3.9 inAnn Arbor, Jun: 3.7 inAnn Arbor, Jul: 3.3 inAnn Arbor, Aug: 3.3 inAnn Arbor, Sep: 2.7 inAnn Arbor, Oct: 2.7 inAnn Arbor, Nov: 2.6 inAnn Arbor, Dec: 2.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Ann Arbor2.42.12.53.63.93.73.33.32.72.72.62.3

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovAnn Arbor, Jan: 8 daysAnn Arbor, Feb: 10 daysAnn Arbor, Mar: 13 daysAnn Arbor, Apr: 13 daysAnn Arbor, May: 15 daysAnn Arbor, Jun: 17 daysAnn Arbor, Jul: 21 daysAnn Arbor, Aug: 19 daysAnn Arbor, Sep: 19 daysAnn Arbor, Oct: 15 daysAnn Arbor, Nov: 12 daysAnn Arbor, Dec: 8 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Ann Arbor8101313151721191915128

Compare Ann Arbor with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Michigan city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).