December weather forecast
Power, MT

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Weather in December

December, the first month of the winter in Power, is also a subzero cold month, with an average temperature fluctuating between 29.8°F (-1.2°C) and 18.1°F (-7.7°C).

Temperature

Power, Montana, witnesses the coldest weather in December, with temperatures averaging a high of 29.8°F (-1.2°C) and a low of 18.1°F (-7.7°C).

Humidity

In Power, Montana, the average relative humidity in December is 76%.

Rainfall

In Power, during December, the rain falls for 4.6 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 102.6 rainfall days, and 11.89" (302mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Power. In Power, in December, snow falls for 12.5 days, with typically accumulated 4.25" (108mm) of snow. Throughout the year, in Power, there are 66.6 snowfall days, and 32.17" (817mm) of snow is accumulated.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:55 am and sunset at 4:36 pm. On the last day of December, in Power, sunrise is at 8:15 am and sunset at 4:44 pm MST.

Sunshine

The months with the least sunshine are January, February and December, with an average of 5.5h of sunshine.

UV index

The months with the lowest UV index in Power, Montana, are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

What is the coldest time of year in Power?

Power's December weather reaches an average high of 29.8°F (-1.2°C) and an average low of 18.1°F (-7.7°C), making it the coldest month.

How cold is December in Power?

The high-temperature, in December, in Power, records 29.8°F (-1.2°C), while the low-temperature is 18.1°F (-7.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in August is appraised at 80.6°F (27°C).

What is the average humidity in December in Power?

In Power, Montana, the average relative humidity in December is 76%.

How many days does it rain in December in Power?

In Power, during December, the rain falls for 4.6 days and regularly aggregates up to 0.63" (16mm) of precipitation.

How much does it snow in Power in December?

In Power, Montana, during December, snow falls for 12.5 days and regularly aggregates up to 4.25" (108mm) of snow.

What is the month with the shortest days in Power?

The month with the shortest days in Power, Montana, is December, with an average of 8h and 30min of daylight.

How many hours of daylight does Power have in December?

In December, the average day length is 8h and 29min.

What time are sunrise and sunset in December in Power?

On the first day of December in Power, sunrise is at 7:55 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 4:44 pm MST.

What is the month with the least sunshine in Power?

The months with the least sunshine are January, February and December, with an average of 5.5h of sunshine.

How many hours of sunshine does Power have in December?

In Power, the average sunshine duration in December is 5.5h.

What is the month with the lowest UV index in Power?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Power, Montana.

How high is the UV index in December in Power?

The average daily maximum UV index in December in Power is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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 December
Power, MT

Average temperature in December - Power, MT
  • Average high temperature in December: 29.8°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (29.8°F).

  • Average low temperature in December: 18.1°F

The month with the highest average low temperature is August (57.6°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).

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Average pressure in December
Power, MT

Average pressure in December - Power, MT
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in December
Power, MT

Average wind speed in December - Power, MT
  • Average wind speed in December: 10.9mph

The windiest month (with the highest average wind speed) is November (11.2mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).

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Average humidity in December
Power, MT

Average humidity in December - Power, MT
  • Average humidity in December: 76%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in December
Power, MT

Average rainfall in December - Power, MT
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is June (1.97").
The driest months (with the least rainfall) are January and July (0.59").

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Average rainfall days in December
Power, MT

Average rainfall days in December - Power, MT
  • Average rainfall days in December: 4.6 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is November (4.4 days).

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Average snowfall in December
Power, MT

Average snowfall in December - Power, MT
  • Average snowfall in December: 4.25"

The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Power, MT

Average snowfall days in December - Power, MT
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Power, MT

Average daylight in December / Average sunshine in December - Power, MT
  • Average daylight in December: 8h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Power, MT

Average sunshine days in December - Power, MT
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is April (11.6 days).

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Average UV index in December
Power, MT

Average UV index in December - Power, MT
  • Average UV index in December: 2

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

Average cloud cover in December - Power, MT
  • Average cloud cover in December: 42

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 13).

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Average visibility in December
Power, MT

Average visibility in December - Power, MT
  • Average visibility in December: 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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Power, Montana, USA

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