Weatheo

Dearborn Weather by Month

Average temperatures, rainfall and humidity for Dearborn, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Dearborn month looks like before you travel — then check the live Dearborn forecast for the days ahead.

Warmest month

July

28°C average high

Coolest month

January

-6°C average low

Wettest month

June

87 mm of rain

Driest month

February

22 mm of rain

Average temperature and rainfall in Dearborn by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January0°C-6°C-25°C / 15°C
34 mm
78%14 km/h
February2°C-6°C-30°C / 22°C
22 mm
75%14 km/h
March8°C-1°C-21°C / 24°C
47 mm
69%15 km/h
April15°C4°C-7°C / 29°C
75 mm
66%15 km/h
May22°C11°C-1°C / 34°C
73 mm
65%13 km/h
June27°C16°C6°C / 36°C
87 mm
67%12 km/h
July28°C19°C11°C / 37°C
64 mm
70%10 km/h
August27°C18°C9°C / 35°C
76 mm
73%10 km/h
September24°C15°C4°C / 36°C
69 mm
75%10 km/h
October17°C9°C-2°C / 31°C
69 mm
75%12 km/h
November9°C2°C-13°C / 24°C
47 mm
74%14 km/h
December4°C-2°C-20°C / 16°C
42 mm
79%13 km/h

Best time to visit Dearborn

The most comfortable time to visit Dearborn is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around June, totalling about 704 mm a year.

Travellers who prefer heat should aim for July, when highs average 28°C. June is the month to avoid if rain would spoil your plans — it averages 87 mm, roughly 4× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Dearborn forecast for what is happening now.

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