May weather forecast
Mentor, MN

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Weather in May

May, the last month of the spring in Mentor, is a comfortable month, with an average temperature varying between 46.2°F (7.9°C) and 64°F (17.8°C).

Temperature

With the onset of May, Mentor experiences a distinct temperature rise, with the average high-temperature advancing from April's frosty 48.9°F (9.4°C) to a comfortable 64°F (17.8°C). Mentor's average low-temperature during May nights is observed to be a frosty 46.2°F (7.9°C).

Humidity

In Mentor, the average relative humidity in May is 66%.

Rainfall

In Mentor, in May, during 14.2 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 104 rainfall days, and 18.03" (458mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Mentor. May is the last month it regularly snows. During 0.5 snowfall days, in May, Mentor aggregates 0.2" (5mm) of snow. Throughout the year, there are 79.5 snowfall days, and 23.46" (596mm) of snow is accumulated.

Daylight

In Mentor, the average length of the day in May is 15h and 10min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:37 pm. On the last day of May, in Mentor, Minnesota, sunrise is at 5:30 am and sunset at 9:14 pm CDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

In Mentor, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In May, a regular UV index of 4 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Mentor?

In May, in Mentor, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 46.2°F (7.9°C).

What is the average humidity in May in Mentor?

The average relative humidity in May in Mentor is 66%.

How many days does it rain in May in Mentor?

In Mentor, in May, it is raining for 14.2 days, with typically 2.2" (56mm) of accumulated precipitation.

What is the last month it snows in Mentor?

May is the last month it regularly snows. During 0.5 snowfall days, in May, Mentor aggregates 0.2" (5mm) of snow.

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

In Mentor, the average day length in May is 15h and 10min.

What time are sunrise and sunset in May in Mentor?

In May, on the first day of the month, sunrise is at 6:05 am and sunset at 8:37 pm. On the last day of the month, in Mentor, Minnesota, sunrise is at 5:30 am and sunset at 9:14 pm CDT.

How long on average sun shines in May in Mentor?

In May, the average sunshine duration in Mentor, Minnesota, is 8.7h.

What is the UV index intensity in May in Mentor?

In May, the average daily maximum UV index in Mentor is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Mentor, MN

Average temperature in May - Mentor, MN
  • Average high temperature in May: 64°F

The warmest months (with the highest average high temperature) are July and August (79°F).
The month with the lowest average high temperature is January (14.4°F).

  • Average low temperature in May: 46.2°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (0°F).

Average pressure in May
Mentor, MN

Average pressure in May - Mentor, MN
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in May
Mentor, MN

Average wind speed in May - Mentor, MN
  • Average wind speed in May: 9.3mph

The windiest month (with the highest average wind speed) is October (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity in May
Mentor, MN

Average humidity in May - Mentor, MN
  • Average humidity in May: 66%

The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is August (65%).

Average rainfall in May
Mentor, MN

Average rainfall in May - Mentor, MN
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (0.59").

Average rainfall days in May
Mentor, MN

Average rainfall days in May - Mentor, MN
  • Average rainfall days in May: 14.2 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is January (1.7 days).

Average snowfall in May
Mentor, MN

Average snowfall in May - Mentor, MN
  • Average snowfall in May: 0.2"

The month with the highest snowfall is December (5.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Mentor, MN

Average snowfall days in May - Mentor, MN
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Mentor, MN

Average daylight in May / Average sunshine in May - Mentor, MN
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in May
Mentor, MN

Average sunshine days in May - Mentor, MN
  • Average sunshine days in May: 14.3 days

The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in May
Mentor, MN

Average UV index in May - Mentor, MN
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
Mentor, MN

Average cloud cover in May - Mentor, MN
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in May
Mentor, MN

Average visibility in May - Mentor, MN
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

Mentor, Minnesota, USA

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