Is this weather normal in Washtenaw County?

Michigan · county records since 1895, through September 2026.

Weather › Michigan › Washtenaw County

Washtenaw County's warmest year in 131 on record was 2024, at 51.9° on average. Washtenaw County has warmed about 0.6° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 54°, lows near 35°

That is the 1991 to 2020 average for these dates in Washtenaw County. The Weather Service forecast fills in below.

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usual high for the datewarmercooler

The last 12 months

Oct: +3.0°OctNov: -1.0°NovDec: -4.0°DecJan 2026: -5.0°JanFeb: 0.0°FebMar: +5.5°MarApr: +4.7°AprMay: -1.4°MayJun: +0.1°JunJul: +2.4°JulAug: +1.2°AugSep: +1.5°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1895.

Every year since 1895

18952025

Rain and drought

Oct: -1.1 inOctNov: -1.0 inNovDec: +0.4 inDecJan 2026: -1.1 inJanFeb: -1.0 inFebMar: +1.7 inMarApr: +2.1 inAprMay: -1.6 inMayJun: -0.1 inJunJul: -0.3 inJulAug: -0.9 inAugSep: +0.3 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Washtenaw County

MonthUsual high / lowUsual rainWarmestColdest
January31° / 16°2.1 in33.7° 20068.9° 1918
February34° / 18°1.8 in35.6° 201711.5° 2015
March45° / 26°2.3 in49.2° 201223.3° 1900
April58° / 36°3.2 in52.6° 201736.8° 1907
May70° / 47°3.8 in64.3° 189648.6° 1907
June79° / 57°3.6 in72.4° 193461.0° 1903
July83° / 60°3.3 in77.3° 201266.4° 2009
August81° / 59°3.3 in74.7° 194763.5° 1927
September74° / 51°2.9 in66.7° 193153.7° 1918
October61° / 40°2.8 in57.8° 196340.7° 1925
November48° / 31°2.5 in46.1° 200130.6° 1951
December36° / 22°2.0 in38.8° 201516.1° 1989

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Washtenaw County

Crime Radar: Ann Arbor, Saline, Ypsilanti, South Lyon, Chelsea

Nearby counties