Detroit
Michigan, USA
Long term weather forecast
Long term weather forecast

May weather forecast and Climate
Detroit, MI

  • Average high temperature in May: 69.9°F

Warmest month (with highest average high temperature) is July (83.4°F).
Month with lowest average high temperature is January (32°F).

  • Average low temperature in May: 49.4°F

Month with highest average low temperature is July (63.9°F).
Coldest month (with lowest average low temperature) is January (19.1°F).

  • Average humidity in May: 65.3%

Month with highest relative humidity is December (76.7%).
Month with lowest relative humidity is May (65.3%).

  • Average rainfall in May: 3.4"

Wettest month (with highest rainfall) is June (3.5").
Driest months (with lowest rainfall) are January and February (2").

  • Average rainfall days in May: 12.1 days

Month with highest number of rainy days is December (13.7 days).
Month with lowest number of rainy days is September (9.5 days).

  • Average snowfall in May: 0"

Month with highest snowfall is January (12.5").
Months with lowest snowfall are May, June, July, August and September (0").

  • Average snowfall days in May: 0 days

Month with highest number of snowfall days is January (10.4 days).
Months with lowest number of snowfall days are May, June, July, August and September (0 days).

  • Average sea temperature in May: 48°F

Best month for swimming (with highest average sea temperature) is August (73°F).
Coldest months (with lowest average sea temperature) are February and March (36°F).

  • Average daylight in May: 15h

Months with longest days are May, June and July (Average daylight: 15h).
Months with shortest days are January and December (Average daylight: 9h).

  • Average sunshine in May: 8.9h

Month with most sunshine is July (Average sunshine: 10.2h).
Month with least sunshine is December (Average sunshine: 2.8h).

  • Average UV index in May: 7

Month with highest UV index is July (UV index 9).
Months with lowest UV index are January and December (UV index 1).

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