May weather forecast
Ann Arbor, MI

The vast University of Michigan Law School Campus in Ann Arbor, Michigan
The vast University of Michigan Law School Campus in Ann Arbor, Michigan

Weather in May

May, the last month of the spring, in Ann Arbor, is a comfortable month, with average temperature fluctuating between 67.6°F (19.8°C) and 49.8°F (9.9°C).

Temperature

In May, the average high-temperature rises, from a cool 54.3°F (12.4°C) in April, to a comfortable 67.6°F (19.8°C). In May, the average low-temperature is 49.8°F (9.9°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.2 days and accumulates 2.4" (61mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Ann Arbor. May is the last month it regularly snows. During 0.1 snowfall days, Ann Arbor aggregates 0.08" (2mm) of snow. In Ann Arbor, during the entire year, snow falls for 45 days, and aggregates up to 9.69" (246mm) of snow.

Daylight

In May, the average length of the day is 14.6h.

Sunshine

In Ann Arbor, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in Ann Arbor is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the average humidity in May in Ann Arbor?

The average relative humidity in May in Ann Arbor, Michigan, is 78%.

What is the wettest month in Ann Arbor?

The month with the most rainfall in Ann Arbor is May when the rain falls for 18.2 days and typically aggregates up to 2.4" (61mm) of precipitation.

How many days does it rain in May in Ann Arbor?

In Ann Arbor, Michigan, in May, it is raining for 18.2 days, with typically 2.4" (61mm) of accumulated precipitation.

What is the last month it snows in Ann Arbor?

May is the last month it regularly snows in Ann Arbor. During 0.1 snowfall days, in May, Ann Arbor aggregates 0.08" (2mm) of snow.

How many hours of daylight does Ann Arbor have in May?

In May, the average length of the day in Ann Arbor, Michigan, is 14.6h.

How many hours of sunshine does Ann Arbor have in May?

The average sunshine in May in Ann Arbor is 8.6h.

How high is the UV index in May in Ann Arbor?

The average daily maximum UV index in May in Ann Arbor is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in May
Ann Arbor, MI

Average temperature in May - Ann Arbor, MI
  • Average high temperature in May: 19.8°C

The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is January (-2.1°C).

  • Average low temperature in May: 9.9°C

The month with the highest average low temperature is July (16.8°C).
The coldest month (with the lowest average low temperature) is January (-7.9°C).

[Resources]

Average pressure in May
Ann Arbor, MI

Average pressure in May - Ann Arbor, MI
  • Average pressure in May: 1015.2mbar

The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

[Resources]

Average wind speed in May
Ann Arbor, MI

Average wind speed in May - Ann Arbor, MI
  • Average wind speed in May: 13km/h

The windiest month (with the highest average wind speed) is January (16.3km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).

[Resources]

Average humidity in May
Ann Arbor, MI

Average humidity in May - Ann Arbor, MI
  • Average humidity in May: 78%

Months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).

[Resources]

Average rainfall in May
Ann Arbor, MI

Average rainfall in May - Ann Arbor, MI
  • Average rainfall in May: 61mm

The wettest month (with the highest rainfall) is May (61mm).
The driest month (with the least rainfall) is December (22mm).

[Resources]

Average rainfall days in May
Ann Arbor, MI

Average rainfall days in May - Ann Arbor, MI
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5.2 days).

[Resources]

Average snowfall in May
Ann Arbor, MI

Average snowfall in May - Ann Arbor, MI
  • Average snowfall in May: 2mm

The month with the highest snowfall is February (69mm).
Months with the least snowfall are June, July, August and September (0mm).

[Resources]

Average snowfall days in May
Ann Arbor, MI

Average snowfall days in May - Ann Arbor, MI
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (11.5 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in May /
Average sunshine in May
Ann Arbor, MI

Average daylight in May / Average sunshine in May - Ann Arbor, MI
  • Average daylight in May: 14.6h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 8.6h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is January (Average sunshine: 3h).

[Resources]

Average sunshine days in May
Ann Arbor, MI

Average sunshine days in May - Ann Arbor, MI
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is July (10.3 days).

[Resources]

Average UV index in May
Ann Arbor, MI

Average UV index in May - Ann Arbor, MI
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in May
Ann Arbor, MI

Average cloud cover in May - Ann Arbor, MI
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 29).

[Resources]

Average visibility in May
Ann Arbor, MI

Average visibility in May - Ann Arbor, MI
  • Average visibility in May: 9km

Months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location