May weather forecast and climate
Carter, MT

Weather in May

The last month of the spring, May, is an enjoyable month in Carter, Montana, with temperature in the range of an average high of 63°F (17.2°C) and an average low of 44.2°F (6.8°C).

Temperature

In Carter, the average high-temperature rises, from a fresh 53.2°F (11.8°C) in April, to an enjoyable 63°F (17.2°C). The average low-temperature, is 44.2°F (6.8°C).

Humidity

In Carter, Montana, the average relative humidity in May is 57%.

Rainfall

In Carter, it is raining for 15.6 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, in Carter, Montana, there are 119.1 rainfall days, and 13.43" (341mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows in Carter. During 0.4 snowfall days, in May, Carter aggregates 0.2" (5mm) of snow. In Carter, during the entire year, snow falls for 58.3 days, and aggregates up to 29.37" (746mm) of snow.

Daylight

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

Sunshine

In May, the average sunshine is 10.4h.

UV index

In Carter, Montana, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Carter?

The average high-temperature, in May, in Carter, is 63°F (17.2°C), while the average low-temperature is 44.2°F (6.8°C).

What is the average humidity in May in Carter?

In May, the average relative humidity in Carter, Montana, is 57%.

How much does it rain in Carter in May?

In Carter, in May, it is raining for 15.6 days, with typically 2.01" (51mm) of accumulated precipitation.

What is the last month it snows in Carter?

May is the last month it regularly snows in Carter. During 0.4 snowfall days, in May, Carter aggregates 0.2" (5mm) of snow.

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

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

How long on average sun shines in May in Carter?

The average sunshine in May in Carter is 10.4h.

What is the UV index reading in May in Carter?

The average daily maximum UV index in May in Carter is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in May
Carter, MT

Average temperature in May - Carter, MT
  • Average high temperature in May: 63°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (29.8°F).

  • Average low temperature in May: 44.2°F

The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (18.1°F).

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Average pressure in May
Carter, MT

Average pressure in May - Carter, MT
  • Average pressure in May: 29.93"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in May
Carter, MT

Average wind speed in May - Carter, MT
  • Average wind speed in May: 9.3mph

The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

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Average humidity in May
Carter, MT

Average humidity in May - Carter, MT
  • Average humidity in May: 57%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in May
Carter, MT

Average rainfall in May - Carter, MT
  • Average rainfall in May: 2.01"

The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is December (0.67").

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Average rainfall days in May
Carter, MT

Average rainfall days in May - Carter, MT
  • Average rainfall days in May: 15.6 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in May
Carter, MT

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

The month with the highest snowfall is February (5.51").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Carter, MT

Average snowfall days in May - Carter, MT
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is February (12.2 days).
Months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Carter, 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: 8.5h).

  • Average sunshine in May: 10.4h

The month with the most sunshine is July (Average sunshine: 12h).
Months with the least sunshine are January, February and December (Average sunshine: 5.5).

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Average sunshine days in May
Carter, MT

Average sunshine days in May - Carter, MT
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (11.2 days).

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Average UV index in May
Carter, MT

Average UV index in May - Carter, MT
  • Average UV index in May: 4

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in May
Carter, MT

Average cloud cover in May - Carter, MT
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 14).

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Average visibility in May
Carter, MT

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

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

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