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Ann Arbor August Weather

Averages and records for weather in Ann Arbor, Michigan in the month of August.

Typical Ann Arbor August Weather 1991–2020
Average daily high	81.8 °F
Average daily low	61.0 °F
Average monthly precipitation	3.5 inches
Average monthly snow	none
Daily chance of precipitation	36.2%
Daily chance of snow	0%

Ann Arbor August Weather Records 1891–2024
Highest temperature	104 °F	August 6, 1918
Lowest temperature	39 °F	August 28, 1986
Highest daily low	80 °F	August 4, 1930
Lowest daily high	60 °F	August 13, 1964
Hottest average high temperature	87.9 °F	1900
Coldest average high temperature	74.4 °F	1915
Most daily precipitation	4.5 inches	August 6, 1998
Most monthly precipitation	8.7 inches	1975
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
August 1	83.0	62.0	99	48
August 2	82.9	61.9	97	44
August 3	82.8	61.8	97	45
August 4	82.7	61.7	94	46
August 5	82.5	61.6	99	48
August 6	82.4	61.4	104	45
August 7	82.3	61.3	100	45
August 8	82.3	61.3	98	44
August 9	82.2	61.2	99	44
August 10	82.1	61.1	97	48
August 11	82.1	61.1	95	46
August 12	82.0	61.1	94	44
August 13	82.0	61.1	96	46
August 14	82.0	61.1	97	42
August 15	81.8	61.1	96	46
August 16	81.7	61.0	96	45
August 17	81.6	60.9	95	49
August 18	81.4	60.7	97	43
August 19	81.3	60.6	99	44
August 20	81.3	60.5	96	44
August 21	81.2	60.4	96	45
August 22	81.1	60.3	101	40
August 23	81.0	60.1	100	44
August 24	80.9	60.0	95	45
August 25	80.8	59.9	96	41
August 26	80.6	59.7	94	43
August 27	80.3	59.6	97	44
August 28	80.1	59.3	94	39
August 29	80.0	59.1	96	40
August 30	79.9	59.0	95	42
August 31	79.6	58.7	98	39

Weather Station Details

Years	Station	Coordinates
1891–2024	University of Michigan	location