May weather forecast
Glen, MT

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Weather in May

May, the last month of the spring in Glen, is a mild month, with an average temperature fluctuating between 57.2°F (14°C) and 35.6°F (2°C).

Temperature

Glen's weather in May presents a rise in the average high-temperature, moving from a chilly 45.9°F (7.7°C) in April to a refreshing 57.2°F (14°C). Glen's nighttime temperatures in May reflect a stark contrast to the day's highs, falling to an average low of 35.6°F (2°C).

Humidity

In May, the average relative humidity in Glen is 60%.

Rainfall

In Glen, in May, during 13.9 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Glen, during the entire year, the rain falls for 111 days and collects up to 9.25" (235mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Glen. In Glen, in May, during 2.4 snowfall days, 1.65" (42mm) of snow is typically accumulated. Throughout the year, there are 73.8 snowfall days, and 27.52" (699mm) of snow is accumulated.

Daylight

In Glen, the average length of the day in May is 14h and 56min.
On the first day of May, sunrise is at 6:17 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 9:11 pm MDT.

Sunshine

In May, the average sunshine in Glen is 11h.

UV index

In May, the average daily maximum UV index is 4. 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: A typical high UV index of 4 in May suggests the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Glen?

The average high-temperature, in May, in Glen, is 57.2°F (14°C), while the average low-temperature is 35.6°F (2°C).

What is the average humidity in May in Glen?

The average relative humidity in May in Glen, Montana, is 60%.

How much does it rain in Glen in May?

In Glen, Montana, during May, the rain falls for 13.9 days and regularly aggregates up to 1.3" (33mm) of precipitation.

How many days does it snow in May in Glen?

In May, in Glen, Montana, it is snowing for 2.4 days. Throughout May, 1.65" (42mm) of snow is accumulated.

How many hours of daylight does Glen have in May?

In Glen, the average day length in May is 14h and 56min.

What time are sunrise and sunset in May in Glen?

In May, on the first day of the month, sunrise is at 6:17 am and sunset at 8:38 pm. On the last day of the month, in Glen, sunrise is at 5:45 am and sunset at 9:11 pm MDT.

How long on average sun shines in May in Glen?

In May, the average sunshine duration in Glen, Montana, is 11h.

What is the UV index reading in May in Glen?

In Glen, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Glen, MT

Average temperature in May - Glen, MT
  • Average high temperature in May: 57.2°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in May: 35.6°F

The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is December (10.6°F).

Average pressure in May
Glen, MT

Average pressure in May - Glen, MT
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Glen, MT

Average wind speed in May - Glen, MT
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is November (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Glen, MT

Average humidity in May - Glen, MT
  • Average humidity in May: 60%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (45%).

Average rainfall in May
Glen, MT

Average rainfall in May - Glen, MT
  • Average rainfall in May: 1.3"

The wettest month (with the highest rainfall) is June (1.34").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in May
Glen, MT

Average rainfall days in May - Glen, MT
  • Average rainfall days in May: 13.9 days

The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are November and December (6.2 days).

Average snowfall in May
Glen, MT

Average snowfall in May - Glen, MT
  • Average snowfall in May: 1.65"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are July and August (0").

Average snowfall days in May
Glen, MT

Average snowfall days in May - Glen, MT
  • Average snowfall days in May: 2.4 days

The month with the highest number of snowfall days is February (13.2 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in May /
Average sunshine in May
Glen, MT

Average daylight in May / Average sunshine in May - Glen, MT
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 11h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in May
Glen, MT

Average sunshine days in May - Glen, MT
  • Average sunshine days in May: 11.7 days

The month with the most sunshine days is July (18.7 days).
The month with the least sunshine days is April (10.7 days).

Average UV index in May
Glen, MT

Average UV index in May - Glen, MT
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in May
Glen, MT

Average cloud cover in May - Glen, MT
  • Average cloud cover in May: 28

The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in May
Glen, MT

Average visibility in May - Glen, MT
  • Average visibility in May: 6mi

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

Glen, Montana, USA

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