Ann Arbor climate

Ann Arbor Weather in August

NOAA 1991-2020 normals for Ann Arbor Se, 5.6 km from Ann Arbor

Average highs run from 83°F on August 1 to 80°F on August 31, and lows from 59°F to 55°F. Normal precipitation for the month is 3.34 in over about 11 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Ann Arbor, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
82°F
Average low
58°F
Precipitation
3.34 in
Record high
96°FAug 3, 2012
Record low
38°FAug 21, 2024
Chance of a freeze
0%
Days of 90°F or more
2.6
Daylight
14 h 26 min to 13 h 11 min
Cloud cover
54%
Humidity
72%
Dew point
60°F
Wind
8.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 183°F59°F94°F 200749°F 200934%0%
Aug 283°F59°F94°F 201245°F 202534%0%
Aug 383°F59°F96°F 201247°F 200934%0%
Aug 483°F59°F92°F 201248°F 202134%0%
Aug 583°F59°F92°F 201847°F 200434%0%
Aug 683°F59°F93°F 200143°F 200434%0%
Aug 783°F59°F95°F 200145°F 200434%0%
Aug 883°F59°F90°F 200744°F 201734%0%
Aug 982°F59°F94°F 200942°F 199934%0%
Aug 1082°F59°F94°F 201647°F 200234%0%
Aug 1182°F59°F93°F 201647°F 200434%0%
Aug 1282°F59°F93°F 201642°F 202234%0%
Aug 1382°F59°F90°F 200246°F 200634%0%
Aug 1482°F59°F87°F 201845°F 200134%0%
Aug 1582°F58°F89°F 200042°F 201334%0%
Aug 1682°F58°F91°F 200944°F 200435%0%
Aug 1781°F58°F87°F 199948°F 200435%0%
Aug 1881°F58°F89°F 200840°F 200735%0%
Aug 1981°F58°F87°F 201644°F 202335%0%
Aug 2081°F58°F88°F 202143°F 200035%0%
Aug 2181°F58°F90°F 200338°F 202435%0%
Aug 2281°F57°F89°F 202040°F 200435%0%
Aug 2381°F57°F93°F 200842°F 202435%0%
Aug 2481°F57°F91°F 202043°F 201735%0%
Aug 2580°F57°F93°F 201241°F 201735%0%
Aug 2680°F57°F94°F 202440°F 202535%0%
Aug 2780°F56°F96°F 202441°F 202535%0%
Aug 2880°F56°F90°F 202142°F 201535%0%
Aug 2980°F56°F91°F 201043°F 202535%0%
Aug 3080°F56°F92°F 201044°F 200935%0%
Aug 3180°F55°F94°F 201238°F 200935%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ann Arbor, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:28 AM, sunset 8:54 PM
August 31
sunrise 6:59 AM, sunset 8:10 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00200228 (Ann Arbor Se), public domain. Records: NOAA GHCN-Daily, station USW00094889, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.