May weather forecast and climate
Culbertson, MT

May, the last month of the spring, in Culbertson, is an enjoyable month, with temperature in the range of an average high of 65.3°F (18.5°C) and an average low of 46.8°F (8.2°C).

Temperature

In Culbertson, the average high-temperature increases, from a cool 52.5°F (11.4°C) in April, to an enjoyable 65.3°F (18.5°C). In Culbertson, in May, the average low-temperature is 46.8°F (8.2°C).

Humidity

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

Rainfall

In Culbertson, in May, it is raining for 10.9 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, in Culbertson, there are 85.7 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Culbertson. May is the last month it regularly snows. During 0.3 snowfall days, Culbertson aggregates 0.12" (3mm) of snow. In Culbertson, Montana, during the entire year, snow falls for 56.1 days, and aggregates up to 8.94" (227mm) of snow.

Daylight

In Culbertson, the average length of the day in May is 15.2h.

Sunshine

In Culbertson, 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 moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Culbertson?

In May, in Culbertson, Montana, the average high-temperature is 65.3°F (18.5°C), and the average low-temperature is 46.8°F (8.2°C).

What is the average humidity in May in Culbertson?

The average relative humidity in May in Culbertson is 56%.

How much does it rain in Culbertson in May?

In May, in Culbertson, the rain falls for 10.9 days. Throughout May, 1.22" (31mm) of precipitation is accumulated.

What is the last month it snows in Culbertson?

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

How many hours of daylight does Culbertson have in May?

The average length of the day in May is 15.2h.

How long on average sun shines in May in Culbertson?

The average sunshine in May in Culbertson, Montana, is 10h.

What is the UV index intensity in May in Culbertson?

In Culbertson, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.
Average temperature in May - Culbertson, MT
  • Average high temperature in May: 18.5°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in May: 8.2°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).

Average pressure in May - Culbertson, MT
  • Average pressure in May: 1013.1mbar

The month with the highest atmospheric pressure is February (1021.5mbar).
The month with the lowest atmospheric pressure is June (1010.3mbar).

Average wind speed in May - Culbertson, MT
  • Average wind speed in May: 16.7km/h

The windiest month (with the highest average wind speed) is April (17.9km/h).
The calmest month (with the lowest average wind speed) is February (14.8km/h).

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: 31mm

The wettest month (with the highest rainfall) is July (34mm).
The driest month (with the least rainfall) is January (6mm).

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).
Months with the least rainy days are January and February (3.2 days).

Average snowfall in May - Culbertson, MT
  • Average snowfall in May: 3mm

The month with the highest snowfall is February (45mm).
Months with the least snowfall are June, July, August and September (0mm).

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).
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: 15.2h

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in May: 10h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 4.3h).

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: 5

The month with the highest UV index is July (UV index 7).
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: 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: 10km

Months with the highest visibility are May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, April, November and December (9km).