May weather forecast
Culbertson, MT

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Weather in May

May, the last month of the spring in Culbertson, is a comfortable month, with an average temperature varying between 65.3°F (18.5°C) and 46.8°F (8.2°C).

Temperature

With the beginning of May, Culbertson's average high-temperature sees an increase, transitioning from a fresh 52.5°F (11.4°C) in April to a comfortable 65.3°F (18.5°C). During May, the average low-temperature is a frosty 46.8°F (8.2°C).

Humidity

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

Rainfall

In Culbertson, in May, during 10.9 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Culbertson, during the entire year, the rain falls for 85.7 days and collects up to 8.5" (216mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Culbertson aggregates 0.12" (3mm) of snow. Throughout the year, there are 56.1 snowfall days, and 8.94" (227mm) of snow is accumulated.

Daylight

The average length of the day in May is 15h and 13min.
On the first day of May, sunrise is at 5:37 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:02 am and sunset at 8:49 pm MDT.

Sunshine

In May, the average sunshine is 10h.

UV index

In May, the average daily maximum UV index in Culbertson is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

In May, the average high-temperature and low-temperature are 65.3°F (18.5°C) and 46.8°F (8.2°C) respectively.

What is the average humidity in May?

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

How much does it rain in May?

In Culbertson, in May, it is raining for 10.9 days, with typically 1.22" (31mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Culbertson aggregates 0.12" (3mm) of snow.

How many hours of daylight does Culbertson have in May?

In Culbertson, the average day length in May is 15h and 13min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:37 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:02 am and sunset at 8:49 pm MDT.

How many hours of sunshine does Culbertson have in May?

In May, the average sunshine duration is 10h.

How high is the UV index in May?

In Culbertson, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Culbertson, MT

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

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in May: 46.8°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in May
Culbertson, MT

Average pressure in May - Culbertson, MT
  • Average pressure in May: 29.92"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).

Average wind speed in May
Culbertson, MT

Average wind speed in May - Culbertson, MT
  • Average wind speed in May: 10.4mph

The windiest months (with the highest average wind speed) are April and October (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).

Average humidity in May
Culbertson, MT

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

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).

Average rainfall in May
Culbertson, MT

Average rainfall in May - Culbertson, MT
  • Average rainfall in May: 1.22"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in May
Culbertson, MT

Average rainfall days in May - Culbertson, MT
  • Average rainfall days in May: 10.9 days

The month with the highest number of rainy days is June (11.4 days).
The months with the least rainy days are January and February (3.2 days).

Average snowfall in May
Culbertson, MT

Average snowfall in May - Culbertson, MT
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Culbertson, MT

Average snowfall days in May - Culbertson, MT
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 16h and 0min).
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 18min).

Average sunshine days in May
Culbertson, MT

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

The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).

Average UV index in May
Culbertson, MT

Average UV index in May - Culbertson, 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 and February (UV index 1).

Average cloud cover in May
Culbertson, MT

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

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).

Average visibility in May
Culbertson, MT

Average visibility in May - Culbertson, 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).

Culbertson, Montana, USA

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