May weather forecast
Augusta, MT

Weather in May

May, the last month of the spring, in Augusta, is a mild month, with average temperature fluctuating between 41.7°F (5.4°C) and 60.4°F (15.8°C).

Temperature

In Augusta, the average high-temperature in May increases, from a chilly 49.6°F (9.8°C) in April, to a mild 60.4°F (15.8°C). The average low-temperature,, is 41.7°F (5.4°C).

Humidity

In May, the average relative humidity in Augusta is 58%.

Rainfall

In Augusta, during May, the rain falls for 11.3 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Augusta, during the entire year, the rain falls for 73.3 days and collects up to 9.17" (233mm) of precipitation.

Snowfall

Months with snowfall in Augusta are January through May, September through December. May is the last month it regularly snows in Augusta. During 1.1 snowfall days, Augusta aggregates 1.26" (32mm) of snow. Throughout the year, in Augusta, there are 50.3 snowfall days, and 21.26" (540mm) of snow is accumulated.

Daylight

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

Sunshine

In Augusta, the average sunshine in May is 10.3h.

UV index

In May, the average daily maximum UV index in Augusta is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in May in Augusta?

In Augusta, Montana, the average relative humidity in May is 58%.

How many days does it rain in May in Augusta?

In Augusta, in May, during 11.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

What is the last month it snows in Augusta?

May is the last month it regularly snows. During 1.1 snowfall days, in May, Augusta aggregates 1.26" (32mm) of snow.

How many hours of daylight does Augusta have in May?

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

How many hours of sunshine does Augusta have in May?

The average sunshine in May is 10.3h.

What is the UV index intensity in May in Augusta?

In May, the average daily maximum UV index in Augusta, Montana, is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in May
Augusta, MT

Average temperature in May - Augusta, MT
  • Average high temperature in May: 60.4°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.8°F).

  • Average low temperature in May: 41.7°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).

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Average pressure in May
Augusta, MT

Average pressure in May - Augusta, MT
  • Average pressure in May: 29.94"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in May
Augusta, MT

Average wind speed in May - Augusta, MT
  • Average wind speed in May: 9mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

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Average humidity in May
Augusta, MT

Average humidity in May - Augusta, MT
  • Average humidity in May: 58%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in May
Augusta, MT

Average rainfall in May - Augusta, MT
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is December (0.35").

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Average rainfall days in May
Augusta, MT

Average rainfall days in May - Augusta, MT
  • Average rainfall days in May: 11.3 days

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is November (2.7 days).

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Average snowfall in May
Augusta, MT

Average snowfall in May - Augusta, MT
  • Average snowfall in May: 1.26"

The month with the highest snowfall is February (4.17").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Augusta, MT

Average snowfall days in May - Augusta, MT
  • Average snowfall days in May: 1.1 days

The month with the highest number of snowfall days is February (11.3 days).
Months with the least snowfall days are July and August (0 days).

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

Average daylight in May / Average sunshine in May - Augusta, MT
  • Average daylight in May: 15.2h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in May: 10.3h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in May
Augusta, MT

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

The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is February (15.8 days).

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Average UV index in May
Augusta, MT

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

The month with the highest UV index is July (UV index 6).
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
Augusta, MT

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

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 14).

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Average visibility in May
Augusta, MT

Average visibility in May - Augusta, 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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