May weather forecast
Powderville, MT

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Weather in May

The last month of the spring, May, is an enjoyable month in Powderville, Montana, with an average temperature ranging between min 45.3°F (7.4°C) and max 63.5°F (17.5°C).

Temperature

The beginning of May signals a rise in the average high-temperature, moving from a cool 51.8°F (11°C) in April to an enjoyable 63.5°F (17.5°C). During the month of May, the nighttime temperature in Powderville falls to an average of 45.3°F (7.4°C).

Humidity

In May, the average relative humidity in Powderville is 60%.

Rainfall

May is the month with the most rainfall. Rain falls for 15.7 days and accumulates 2.6" (66mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows in Powderville, Montana. During 1.7 snowfall days, in May, Powderville aggregates 1.38" (35mm) of snow. In Powderville, during the entire year, snow falls for 62.4 days and aggregates up to 21.97" (558mm) of snow.

Daylight

In May, the average length of the day is 14h and 57min.
On the first day of May in Powderville, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:42 pm MDT.

Sunshine

In Powderville, the average sunshine in May is 9.7h.

UV index

In Powderville, 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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 5 in May leads to these recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What is the temperature in May in Powderville?

Powderville in May has an average high-temperature of 63.5°F (17.5°C) and an average low-temperature of 45.3°F (7.4°C).

What is the average humidity in May in Powderville?

The average relative humidity in May in Powderville is 60%.

What is the wettest month in Powderville?

The month with the most rainfall in Powderville is May, when the rain falls for 15.7 days and typically aggregates up to 2.6" (66mm) of precipitation.

How much does it rain in Powderville in May?

In Powderville, Montana, during May, the rain falls for 15.7 days and regularly aggregates up to 2.6" (66mm) of precipitation.

What is the last month it snows in Powderville?

May is the last month it regularly snows. During 1.7 snowfall days, in May, Powderville aggregates 1.38" (35mm) of snow.

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

The average day length in May in Powderville, Montana, is 14h and 57min.

When are sunrise and sunset in May in Powderville?

In May, on the first day of the month, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of the month, in Powderville, Montana, sunrise is at 5:14 am and sunset at 8:42 pm MDT.

How many hours of sunshine does Powderville have in May?

In May, the average sunshine duration in Powderville is 9.7h.

What is the UV index reading in May in Powderville?

The average daily maximum UV index in May in Powderville, Montana, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Powderville, MT

Average temperature in May - Powderville, MT
  • Average high temperature in May: 63.5°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in May: 45.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

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Average pressure in May
Powderville, MT

Average pressure in May - Powderville, MT
  • Average pressure in May: 29.91"Hg

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in May
Powderville, MT

Average wind speed in May - Powderville, MT
  • Average wind speed in May: 11.1mph

The windiest months (with the highest average wind speed) are April and October (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (10.1mph).

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Average humidity in May
Powderville, MT

Average humidity in May - Powderville, MT
  • Average humidity in May: 60%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in May
Powderville, MT

Average rainfall in May - Powderville, MT
  • Average rainfall in May: 2.6"

The wettest month (with the highest rainfall) is May (2.6").
The driest months (with the least rainfall) are January and December (0.55").

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Average rainfall days in May
Powderville, MT

Average rainfall days in May - Powderville, MT
  • Average rainfall days in May: 15.7 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (3.1 days).

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Average snowfall in May
Powderville, MT

Average snowfall in May - Powderville, MT
  • Average snowfall in May: 1.38"

The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Powderville, MT

Average snowfall days in May - Powderville, MT
  • Average snowfall days in May: 1.7 days

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

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

Average daylight in May / Average sunshine in May - Powderville, MT
  • Average daylight in May: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 9h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in May
Powderville, MT

Average sunshine days in May - Powderville, MT
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).

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Average UV index in May
Powderville, MT

Average UV index in May - Powderville, 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 December (UV index 1).

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Average cloud cover in May
Powderville, MT

Average cloud cover in May - Powderville, MT
  • Average cloud cover in May: 36

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 18).

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Average visibility in May
Powderville, MT

Average visibility in May - Powderville, 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).

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Powderville, Montana, USA

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