December weather forecast
Fort Belknap Agency, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Fort Belknap Agency, Montana, with temperature in the range of an average low of 14.9°F (-9.5°C) and an average high of 26.6°F (-3°C).

Temperature

December brings a minor decrease, with the average high-temperature reducing from an icy 39.6°F (4.2°C) in November to a freezing cold 26.6°F (-3°C). An average nighttime temperature of 14.9°F (-9.5°C) is witnessed in Fort Belknap Agency throughout December.

Humidity

The average relative humidity in December in Fort Belknap Agency is 80%.

Rainfall

The months with the least rainfall are February, March and December Rain falls for 7 days and accumulates 0.55" (14mm) of rain.

Snowfall

January through May, September through December are months with snowfall in Fort Belknap Agency. In December, it is snowing for 11.1 days. Throughout December, 3.58" (91mm) of snow is accumulated. In Fort Belknap Agency, Montana, during the entire year, snow falls for 57.6 days and aggregates up to 21.69" (551mm) of snow.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year in Fort Belknap Agency.
On the first day of December, sunrise is at 7:46 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 4:30 pm MST.

Sunshine

In Fort Belknap Agency, Montana, the average sunshine in December is 5.6h.

UV index

The months with the lowest UV index in Fort Belknap Agency are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

How cold is it in Fort Belknap Agency in December?

During December, Fort Belknap Agency experiences an average high-temperature of 26.6°F (-3°C) and a low-temperature of 14.9°F (-9.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is calculated to be 80.6°F (27°C).

What is the average humidity in December in Fort Belknap Agency?

The average relative humidity in December in Fort Belknap Agency is 80%.

What is the driest month in Fort Belknap Agency?

February, March and December are months with the least rain when the rain falls for 7 days and typically aggregates up to 0.55" (14mm) of rain.

How much does it rain in Fort Belknap Agency in December?

In Fort Belknap Agency, Montana, in December, it is raining for 7 days, with typically 0.55" (14mm) of accumulated precipitation.

How much does it snow in Fort Belknap Agency in December?

In Fort Belknap Agency, Montana, in December, snow falls for 11.1 days, with typically accumulated 3.58" (91mm) of snow.

What is the month with the shortest days in Fort Belknap Agency?

December has the shortest days of the year in Fort Belknap Agency, Montana, with an average of 8h and 24min of daylight.

What is the average length of the day in December in Fort Belknap Agency?

In December, the average day length in Fort Belknap Agency is 8h and 23min.

When are sunrise and sunset in December in Fort Belknap Agency?

On the first day of December in Fort Belknap Agency, Montana, sunrise is at 7:46 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 4:30 pm MST.

How long on average sun shines in December in Fort Belknap Agency?

In Fort Belknap Agency, the average sunshine duration in December is 5.6h.

When is the lowest UV index in Fort Belknap Agency?

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

What is the UV index intensity in December in Fort Belknap Agency?

In Fort Belknap Agency, Montana, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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 December
Fort Belknap Agency, MT

Average temperature in December - Fort Belknap Agency, MT
  • Average high temperature in December: 26.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (26.2°F).

  • Average low temperature in December: 14.9°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is February (12.6°F).

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Average pressure in December
Fort Belknap Agency, MT

Average pressure in December - Fort Belknap Agency, MT
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in December
Fort Belknap Agency, MT

Average wind speed in December - Fort Belknap Agency, MT
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in December
Fort Belknap Agency, MT

Average humidity in December - Fort Belknap Agency, MT
  • Average humidity in December: 80%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in December
Fort Belknap Agency, MT

Average rainfall in December - Fort Belknap Agency, MT
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are February, March and December (0.55").

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Average rainfall days in December
Fort Belknap Agency, MT

Average rainfall days in December - Fort Belknap Agency, MT
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in December
Fort Belknap Agency, MT

Average snowfall in December - Fort Belknap Agency, MT
  • Average snowfall in December: 3.58"

The month with the highest snowfall is January (4.02").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Fort Belknap Agency, MT

Average snowfall days in December - Fort Belknap Agency, MT
  • Average snowfall days in December: 11.1 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Fort Belknap Agency, MT

Average daylight in December / Average sunshine in December - Fort Belknap Agency, MT
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in December
Fort Belknap Agency, MT

Average sunshine days in December - Fort Belknap Agency, MT
  • Average sunshine days in December: 17 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in December
Fort Belknap Agency, MT

Average UV index in December - Fort Belknap Agency, MT
  • Average UV index in December: 2

The months with the highest UV index are June and 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
Fort Belknap Agency, MT

Average cloud cover in December - Fort Belknap Agency, MT
  • Average cloud cover in December: 42

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in December
Fort Belknap Agency, MT

Average visibility in December - Fort Belknap Agency, 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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Fort Belknap Agency, Montana, USA

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