May weather forecast
Sleeping Buffalo, MT

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Weather in May

May, the last month of the spring in Sleeping Buffalo, is an enjoyable month, with an average temperature varying between 46.9°F (8.3°C) and 65.8°F (18.8°C).

Temperature

The onset of May marks an increase in the average high-temperature, moving from a cool 53.1°F (11.7°C) in April to an enjoyable 65.8°F (18.8°C). Throughout May, an average low-temperature of 46.9°F (8.3°C) is expected.

Humidity

In Sleeping Buffalo, the average relative humidity in May is 52%.

Rainfall

The month with the most rainfall is May, when the rain falls for 12.7 days and typically aggregates up to 1.73" (44mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Sleeping Buffalo aggregates 0.31" (8mm) of snow. Throughout the year, there are 56.9 snowfall days, and 17.95" (456mm) of snow is accumulated.

Daylight

The average length of the day in May is 15h and 16min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:25 pm. On the last day of May, sunrise is at 5:12 am and sunset at 9:03 pm MDT.

Sunshine

The average sunshine in May is 10h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in Sleeping Buffalo, is 65.8°F (18.8°C), while the low-temperature averages to 46.9°F (8.3°C).

What is the average humidity in May?

In Sleeping Buffalo, the average relative humidity in May is 52%.

What is the rainiest month in Sleeping Buffalo?

May is the month with the most rainfall. Rain falls for 12.7 days and accumulates 1.73" (44mm) of precipitation.

How much does it rain in May?

In Sleeping Buffalo, during May, the rain falls for 12.7 days and regularly aggregates up to 1.73" (44mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Sleeping Buffalo aggregates 0.31" (8mm) of snow.

How many hours of daylight does Sleeping Buffalo have in May?

The average day length in May is 15h and 16min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:48 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 9:03 pm MDT.

How many hours of sunshine does Sleeping Buffalo have in May?

In May, the average sunshine duration is 10h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Sleeping Buffalo, MT

Average temperature in May - Sleeping Buffalo, MT
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is February (24.4°F).

  • Average low temperature in May: 46.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (10°F).

Average pressure in May
Sleeping Buffalo, MT

Average pressure in May - Sleeping Buffalo, MT
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in May
Sleeping Buffalo, MT

Average wind speed in May - Sleeping Buffalo, MT
  • Average wind speed in May: 10.6mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is February (8.3mph).

Average humidity in May
Sleeping Buffalo, MT

Average humidity in May - Sleeping Buffalo, MT
  • Average humidity in May: 52%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (41%).

Average rainfall in May
Sleeping Buffalo, MT

Average rainfall in May - Sleeping Buffalo, MT
  • Average rainfall in May: 1.73"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is February (0.43").

Average rainfall days in May
Sleeping Buffalo, MT

Average rainfall days in May - Sleeping Buffalo, MT
  • Average rainfall days in May: 12.7 days

The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in May
Sleeping Buffalo, MT

Average snowfall in May - Sleeping Buffalo, MT
  • Average snowfall in May: 0.31"

The month with the highest snowfall is December (3.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Sleeping Buffalo, MT

Average snowfall days in May - Sleeping Buffalo, MT
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Sleeping Buffalo, MT

Average daylight in May / Average sunshine in May - Sleeping Buffalo, MT
  • Average daylight in May: 15h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in May: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
Sleeping Buffalo, MT

Average sunshine days in May - Sleeping Buffalo, MT
  • Average sunshine days in May: 16.3 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (15.4 days).

Average UV index in May
Sleeping Buffalo, MT

Average UV index in May - Sleeping Buffalo, 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 January, February, March, October, November and December (UV index 2).

Average cloud cover in May
Sleeping Buffalo, MT

Average cloud cover in May - Sleeping Buffalo, MT
  • Average cloud cover in May: 33

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 18).

Average visibility in May
Sleeping Buffalo, MT

Average visibility in May - Sleeping Buffalo, MT
  • Average visibility in May: 6mi

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

Sleeping Buffalo, Montana, USA

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