Ann Arbor, MI Weather - Forecast & Monthly Averages

TEMPERATURE	21
HUMIDITY	68
PRESSURE	102776.9
WIND COND.	320 11.1

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Weather Quick Facts

The highest monthly average temperature in Ann Arbor for July is 71.6 degrees
The lowest monthly average temperature in Ann Arbor for February is 24.7 degrees
The most monthly precipitation in Ann Arbor occurs in May with 3.8 inches
The air quality index in Ann Arbor is 5% better than the national average
The pollution index in Ann Arbor is 93% better than the national average

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Ann Arbor Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	16°F	33°F	25°F	1.8"
February	15°F	34°F	25°F	1.6"
March	26°F	47°F	36°F	2.4"
April	36°F	61°F	48°F	3.4"
May	46°F	72°F	59°F	3.8"
June	54°F	80°F	68°F	3.7"
July	58°F	84°F	72°F	3.2"
August	57°F	82°F	70°F	2.7"
September	50°F	76°F	62°F	2.4"
October	40°F	63°F	51°F	2.5"
November	29°F	50°F	40°F	2.1"
December	22°F	38°F	30°F	1.9"

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Ann Arbor air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Ann Arbor	Michigan	National
Air quality index	40	69	42
Pollution index	180,667	4,161,606	2,726,193

Ann Arbor air quality

Measurement	Total
Days measured	365
Days with good air quality	292
Days with moderate air quality	73
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.002%
Carbon Tetrachloride	0.001%
Lead	0.000%
Mercury	0.000%

Average monthly Ann Arbor temperature with heat index

Ann Arbor monthly precipitation with daily maximum

Ann Arbor monthly snow depth with daily maximum

Ann Arbor monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Clinton, MI	2,885	39	22.0%
Plymouth, MI	9,168	40	20.0%
South Lyon, MI	11,818	40	20.0%
Ypsilanti, MI	20,792	40	20.0%
Whitmore Lake, MI	8,010	40	20.0%
Ann Arbor, MI	121,093	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Allentown, PA	121,156	42	16.0%
Vallejo, CA	121,275	40	20.0%
East Los Angeles, CA	120,504	72	44.0%
Arvada, CO	120,229	58	16.0%
Wilmington, NC	122,162	34	32.0%
Ann Arbor, MI	121,093	40	20.0%

Source: The Ann Arbor, MI weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.