May weather forecast
Hartland, MI

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Weather in May

May, the last month of the spring in Hartland, is a refreshing month, with an average temperature ranging between max 66.4°F (19.1°C) and min 48.2°F (9°C).

Temperature

May brings a temperature increase, with average high-temperatures moving from April's cool 53.6°F (12°C) to a refreshing 66.4°F (19.1°C). May brings with it a nighttime average temperature of 48.2°F (9°C).

Humidity

The average relative humidity in May is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.1 days and accumulates 3.27" (83mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Hartland aggregates 0.12" (3mm) of snow. Throughout the year, there are 57.3 snowfall days, and 19.06" (484mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 38min.
On the first day of the month, sunrise is at 6:28 am and sunset at 8:35 pm. On the last day of May, sunrise is at 5:59 am and sunset at 9:05 pm EDT.

Sunshine

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

UV index

In Hartland, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

In May, in Hartland, the average high-temperature is 66.4°F (19.1°C), and the average low-temperature is 48.2°F (9°C).

What is the average humidity in May?

The average relative humidity in May is 78%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 18.1 days and typically aggregates up to 3.27" (83mm) of precipitation.

How much does it rain in May?

In Hartland, in May, during 18.1 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows in Hartland, Michigan. During 0.2 snowfall days, in May, Hartland aggregates 0.12" (3mm) of snow.

What is the average length of the day in May in Hartland?

In Hartland, the average day length in May is 14h and 38min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:28 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 9:05 pm EDT.

How many hours of sunshine does Hartland have in May?

The average sunshine duration in May is 8.4h.

What is the UV index reading in May?

The average daily maximum UV index in May in Hartland is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Hartland, MI

Average temperature in May - Hartland, MI
  • Average high temperature in May: 66.4°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 (27.5°F).

  • Average low temperature in May: 48.2°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in May
Hartland, MI

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

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

Average wind speed in May
Hartland, MI

Average wind speed in May - Hartland, MI
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in May
Hartland, MI

Average humidity in May - Hartland, MI
  • Average humidity in May: 78%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).

Average rainfall in May
Hartland, MI

Average rainfall in May - Hartland, MI
  • Average rainfall in May: 3.27"

The wettest month (with the highest rainfall) is May (3.27").
The driest months (with the least rainfall) are February and December (1.46").

Average rainfall days in May
Hartland, MI

Average rainfall days in May - Hartland, MI
  • Average rainfall days in May: 18.1 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5 days).

Average snowfall in May
Hartland, MI

Average snowfall in May - Hartland, MI
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Hartland, MI

Average snowfall days in May - Hartland, MI
  • Average snowfall days in May: 0.2 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
Hartland, MI

Average daylight in May / Average sunshine in May - Hartland, 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 48min).

Average sunshine days in May
Hartland, MI

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

The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in May
Hartland, MI

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

The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Hartland, MI

Average cloud cover in May - Hartland, MI
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Hartland, MI

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

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

Hartland, Michigan, USA

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