May weather forecast
Glendive, MT

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The calm Yellowstone River running under a bridge through a vast industrial landscape, in Glendive, Montana
The calm Yellowstone River running under a bridge through a vast industrial landscape, in Glendive, Montana

Weather in May

May in Glendive, Montana, can be classified as the commencement of warmth and outdoor activity. The increase in daylight hours and temperature correlates to the onset of summer. Rainfall remains substantial, contributing to the lush green landscapes ideal for hiking or picnics. As May proceeds into June, the temperatures continue to elevate. A substantial increase in the average rainfall to 1.73" (44mm) indicates the highest rainfall in a month for the year.

Temperature

May in Glendive comes with an increase, with the average high-temperature moving from a fresh 53.8°F (12.1°C) in April to a comfortable 65.3°F (18.5°C). The nights of May in Glendive anticipate an average low-temperature of 47.1°F (8.4°C).

Humidity

In Glendive, Montana, the average relative humidity in May is 56%.

Rainfall

May is the month with the most rainfall. Rain falls for 11.3 days and accumulates 1.73" (44mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Glendive. May is the last month it regularly snows in Glendive, Montana. During 0.6 snowfall days, in May, Glendive aggregates 0.2" (5mm) of snow. Throughout the year, in Glendive, Montana, there are 45.2 snowfall days, and 10.55" (268mm) of snow is accumulated.

Daylight

In May, the average length of the day is 15h and 6min.
On the first day of the month, sunrise is at 5:41 am and sunset at 8:10 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:46 pm MDT.

Sunshine

The average sunshine in May is 10h.

UV index

The average daily maximum UV index in May in Glendive is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 in May translates into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What are May temperatures in Glendive?

May temperatures in Glendive, Montana, vary between a high-temperature of 65.3°F (18.5°C) and a low-temperature of 47.1°F (8.4°C).

What is the average humidity in May in Glendive?

In May, the average relative humidity in Glendive is 56%.

What is the wettest month in Glendive?

May is the month with the most rainfall in Glendive. Rain falls for 11.3 days and accumulates 1.73" (44mm) of precipitation.

How many days does it rain in May in Glendive?

In May, in Glendive, Montana, the rain falls for 11.3 days. Throughout May, 1.73" (44mm) of precipitation is accumulated.

What is the last month it snows in Glendive?

May is the last month it regularly snows in Glendive. During 0.6 snowfall days, in May, Glendive aggregates 0.2" (5mm) of snow.

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

In Glendive, the average day length in May is 15h and 6min.

When are sunrise and sunset in May in Glendive?

In May, on the first day of the month, sunrise is at 5:41 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:46 pm MDT.

How long on average sun shines in May in Glendive?

In May, the average sunshine duration in Glendive is 10h.

What is the UV index intensity in May in Glendive?

In May, the average daily maximum UV index in Glendive, Montana, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
Glendive, MT

Average temperature in May - Glendive, MT
  • Average high temperature in May: 65.3°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in May: 47.1°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in May
Glendive, MT

Average pressure in May - Glendive, MT
  • Average pressure in May: 29.91"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in May
Glendive, MT

Average wind speed in May - Glendive, MT
  • Average wind speed in May: 10.5mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

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Average humidity in May
Glendive, MT

Average humidity in May - Glendive, MT
  • Average humidity in May: 56%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in May
Glendive, MT

Average rainfall in May - Glendive, MT
  • Average rainfall in May: 1.73"

The wettest month (with the highest rainfall) is May (1.73").
The driest months (with the least rainfall) are January, March and November (0.35").

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Average rainfall days in May
Glendive, MT

Average rainfall days in May - Glendive, MT
  • Average rainfall days in May: 11.3 days

The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is February (3.1 days).

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Average snowfall in May
Glendive, MT

Average snowfall in May - Glendive, MT
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Glendive, MT

Average snowfall days in May - Glendive, MT
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Glendive, MT
  • Average daylight in May: 15h and 1min

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

  • Average sunshine in May: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in May
Glendive, MT

Average sunshine days in May - Glendive, MT
  • Average sunshine days in May: 16.8 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (14.9 days).

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Average UV index in May
Glendive, MT

Average UV index in May - Glendive, MT
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in May
Glendive, MT

Average cloud cover in May - Glendive, MT
  • Average cloud cover in May: 34

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 17).

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Average visibility in May
Glendive, MT

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

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

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Glendive, Montana, USA

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