May weather forecast
DeWitt, MI

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Weather in May

The last month of the spring, May, is a comfortable month in DeWitt, Michigan, with an average temperature varying between 66.6°F (19.2°C) and 48.6°F (9.2°C).

Temperature

As April gives way to May, the average high-temperature displays an increase, moving from a cool 54.1°F (12.3°C) to a refreshing 66.6°F (19.2°C). During the month of May, DeWitt anticipates a mean low-temperature of 48.6°F (9.2°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.2 days and typically aggregates up to 3.15" (80mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, DeWitt aggregates 0.04" (1mm) of snow. In DeWitt, during the entire year, snow falls for 59.2 days and aggregates up to 16.46" (418mm) of snow.

Daylight

The average length of the day in May is 14h and 40min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:39 pm. On the last day of May, sunrise is at 6:02 am and sunset at 9:09 pm EDT.

Sunshine

In DeWitt, the average sunshine in May is 8.4h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

What is the temperature in May in DeWitt?

In DeWitt, in May, the average high-temperature is 66.6°F (19.2°C), and the average low-temperature is 48.6°F (9.2°C).

What is the average humidity in May in DeWitt?

In May, the average relative humidity is 79%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 17.2 days and typically aggregates up to 3.15" (80mm) of precipitation.

How many days does it rain in May?

In May, the rain falls for 17.2 days. Throughout May, 3.15" (80mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, DeWitt aggregates 0.04" (1mm) of snow.

How many hours of daylight does DeWitt have in May?

The average day length in May is 14h and 40min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:31 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 9:09 pm EDT.

How many hours of sunshine does DeWitt have in May?

The average sunshine duration in May is 8.4h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

How high is the UV index in May?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
DeWitt, MI

Average temperature in May - DeWitt, MI
  • Average high temperature in May: 66.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in May: 48.6°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in May
DeWitt, MI

Average pressure in May - DeWitt, MI
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
DeWitt, MI

Average wind speed in May - DeWitt, MI
  • Average wind speed in May: 8.5mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in May
DeWitt, MI

Average humidity in May - DeWitt, MI
  • Average humidity in May: 79%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).

Average rainfall in May
DeWitt, MI

Average rainfall in May - DeWitt, MI
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is February (1.38").

Average rainfall days in May
DeWitt, MI

Average rainfall days in May - DeWitt, MI
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (5.7 days).

Average snowfall in May
DeWitt, MI

Average snowfall in May - DeWitt, MI
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
DeWitt, MI

Average snowfall days in May - DeWitt, MI
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
DeWitt, MI

Average daylight in May / Average sunshine in May - DeWitt, MI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in May
DeWitt, MI

Average sunshine days in May - DeWitt, MI
  • Average sunshine days in May: 10.9 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is January (10.3 days).

Average UV index in May
DeWitt, MI

Average UV index in May - DeWitt, MI
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
DeWitt, MI

Average cloud cover in May - DeWitt, MI
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
DeWitt, MI

Average visibility in May - DeWitt, MI
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).

DeWitt, Michigan, USA

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