Climate

Dearborn weather by month

Average highs, lows, rain and snow for every month, from 30 years of weather records.

Average temperatures

Best time to visit: June, August, September, when highs are mild and rain is lightest.

Month	High	Low	Rain	Snow	Wet days
January	32°F	18°F	2.5 in	11.7 in	12
February	35°F	19°F	2.3 in	7.3 in	9
March	45°F	26°F	2.3 in	5.7 in	9
April	58°F	37°F	3.3 in	0.60 in	12
May	70°F	48°F	3.6 in	0.00 in	12
June	79°F	58°F	3.3 in	0.00 in	10
July	84°F	62°F	3.5 in	0.00 in	10
August	82°F	61°F	3.2 in	0.00 in	10
September	75°F	53°F	3.0 in	0.00 in	9
October	62°F	42°F	2.9 in	0.00 in	12
November	48°F	32°F	2.7 in	0.90 in	10
December	37°F	24°F	2.5 in	4.6 in	12

NOAA U.S. Climate Normals 1991–2020, Dearborn, Mi Us (1.4 mi away, 605 ft). Wet days: days with at least 0.01 in of precipitation.

What is the hottest month in Dearborn?

July, with an average high of 84°F and low of 62°F.

What is the coldest month in Dearborn?

January, with an average low of 18°F and high of 32°F.

When does it rain most in Dearborn?

May is the wettest month, averaging 3.6 in of precipitation; the year totals about 35.1 inches.

Does it snow in Dearborn?

Yes. Snowfall averages about 31 inches a year, mostly in January and February.

What is the best time to visit Dearborn?

For mild weather (highs between 65°F and 85°F) with the least rain, June, August, September.

Where do these numbers come from?

NOAA’s 1991–2020 U.S. Climate Normals for the Dearborn weather station, 1.4 miles from downtown: 30-year averages, not a forecast.