May weather forecast
Sun Prairie, MT

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Weather in May

The last month of the spring, May, is an enjoyable month in Sun Prairie, Montana, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 62.8°F (17.1°C).

Temperature

May's arrival coincides with a rise in the average high-temperature, moving from April's fresh 52.3°F (11.3°C) to a refreshing 62.8°F (17.1°C). The mean low-temperature during May nights in Sun Prairie, Montana, is a wintry 42.4°F (5.8°C).

Humidity

The average relative humidity in May is 59%.

Rainfall

In May, in Sun Prairie, Montana, the rain falls for 14.5 days. Throughout May, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Sun Prairie, there are 102.6 rainfall days, and 11.89" (302mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Sun Prairie are January through May, September through December. May is the last month it regularly snows. During 1.2 snowfall days, in May, Sun Prairie aggregates 0.91" (23mm) of snow. Throughout the year, in Sun Prairie, Montana, there are 66.6 snowfall days, and 32.17" (817mm) of snow is accumulated.

Daylight

In May, the average length of the day is 15h and 9min.
On the first day of May in Sun Prairie, sunrise is at 6:07 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 9:14 pm MDT.

Sunshine

In Sun Prairie, the average sunshine in May is 10.3h.

UV index

The average daily maximum UV index in May in Sun Prairie is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In May, an average UV index of 4 transforms into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What is the temperature in May in Sun Prairie?

The high-temperature, in May, in Sun Prairie, is 62.8°F (17.1°C), while the low-temperature averages to 42.4°F (5.8°C).

What is the average humidity in May in Sun Prairie?

The average relative humidity in May is 59%.

How many days does it rain in May in Sun Prairie?

In Sun Prairie, during May, the rain falls for 14.5 days and regularly aggregates up to 1.65" (42mm) of precipitation.

What is the last month it snows in Sun Prairie?

May is the last month it regularly snows. During 1.2 snowfall days, in May, Sun Prairie aggregates 0.91" (23mm) of snow.

How many hours of daylight does Sun Prairie have in May?

In Sun Prairie, the average day length in May is 15h and 9min.

When is the sunrise / sunset in May in Sun Prairie?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 8:38 pm. On the last day of the month, in Sun Prairie, Montana, sunrise is at 5:32 am and sunset at 9:14 pm MDT.

How many hours of sunshine does Sun Prairie have in May?

In May, the average sunshine duration in Sun Prairie, Montana, is 10.3h.

What is the UV index intensity in May in Sun Prairie?

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
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
Sun Prairie, MT

Average temperature in May - Sun Prairie, MT
  • Average high temperature in May: 62.8°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (29.8°F).

  • Average low temperature in May: 42.4°F

The month with the highest average low temperature is August (57.6°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).

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Average pressure in May
Sun Prairie, MT

Average pressure in May - Sun Prairie, MT
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in May
Sun Prairie, MT

Average wind speed in May - Sun Prairie, MT
  • Average wind speed in May: 8.4mph

The windiest month (with the highest average wind speed) is November (11.2mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).

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Average humidity in May
Sun Prairie, MT

Average humidity in May - Sun Prairie, MT
  • Average humidity in May: 59%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in May
Sun Prairie, MT

Average rainfall in May - Sun Prairie, MT
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is June (1.97").
The driest months (with the least rainfall) are January and July (0.59").

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Average rainfall days in May
Sun Prairie, MT

Average rainfall days in May - Sun Prairie, MT
  • Average rainfall days in May: 14.5 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is November (4.4 days).

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Average snowfall in May
Sun Prairie, MT

Average snowfall in May - Sun Prairie, MT
  • Average snowfall in May: 0.91"

The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Sun Prairie, MT

Average snowfall days in May - Sun Prairie, MT
  • Average snowfall days in May: 1.2 days

The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in May /
Average sunshine in May
Sun Prairie, MT

Average daylight in May / Average sunshine in May - Sun Prairie, MT
  • 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: 10h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).

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Average sunshine days in May
Sun Prairie, MT

Average sunshine days in May - Sun Prairie, MT
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is April (11.6 days).

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Average UV index in May
Sun Prairie, MT

Average UV index in May - Sun Prairie, MT
  • 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, March, October, November and December (UV index 2).

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Average cloud cover in May
Sun Prairie, MT

Average cloud cover in May - Sun Prairie, MT
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 13).

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Average visibility in May
Sun Prairie, MT

Average visibility in May - Sun Prairie, 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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Sun Prairie, Montana, USA

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