December weather forecast
Carbert, MT

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Weather in December

The first month of the winter, December, is still a freezing cold month in Carbert, Montana, with temperature in the range of an average high of 21.9°F (-5.6°C) and an average low of 10°F (-12.2°C).

Temperature

The start of December is characterized by a significant decrease in the average high-temperature, moving from an icy 36.3°F (2.4°C) in November to a freezing cold 21.9°F (-5.6°C). Throughout the December nights, Carbert encounters a low-temperature of 10°F (-12.2°C).

Humidity

In December, the average relative humidity is 87%.

Rainfall

In Carbert, during December, the rain falls for 3.6 days and regularly aggregates up to 0.51" (13mm) of precipitation. In Carbert, during the entire year, the rain falls for 93.3 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Carbert, Montana, during December, snow falls for 13 days and regularly aggregates up to 3.19" (81mm) of snow. In Carbert, Montana, during the entire year, snow falls for 66.5 days and aggregates up to 19.02" (483mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 18min of daylight.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:08 pm. On the last day of December, in Carbert, Montana, sunrise is at 7:57 am and sunset at 4:16 pm MST.

Sunshine

The average sunshine in December in Carbert is 4.2h.

UV index

In December, the average daily maximum UV index in Carbert is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is December in Carbert?

In Carbert, 21.9°F (-5.6°C) is the average high-temperature and 10°F (-12.2°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 82.4°F (28°C).

What is the average humidity in December in Carbert?

The average relative humidity in December in Carbert, Montana, is 87%.

How much does it rain in Carbert in December?

In Carbert, Montana, in December, it is raining for 3.6 days, with typically 0.51" (13mm) of accumulated precipitation.

How much does it snow in Carbert in December?

In Carbert, Montana, in December, snow falls for 13 days, with typically accumulated 3.19" (81mm) of snow.

What is the month with the shortest days in Carbert?

With an average of 8h and 18min of daylight, December has the shortest days of the year in Carbert, Montana.

How many hours of daylight does Carbert have in December?

The average day length in December in Carbert is 8h and 19min.

What time are sunrise and sunset in December in Carbert?

In December, on the first day of the month, sunrise is at 7:36 am and sunset at 4:08 pm. On the last day of the month, in Carbert, sunrise is at 7:57 am and sunset at 4:16 pm MST.

How long on average sun shines in December in Carbert?

In Carbert, the average sunshine duration in December is 4.2h.

What is the UV index reading in December in Carbert?

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

Average temperature in December - Carbert, MT
  • Average high temperature in December: 21.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (19.8°F).

  • Average low temperature in December: 10°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (6.3°F).

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Average pressure in December
Carbert, MT

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

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in December
Carbert, MT

Average wind speed in December - Carbert, MT
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).

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Average humidity in December
Carbert, MT

Average humidity in December - Carbert, MT
  • Average humidity in December: 87%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in December
Carbert, MT

Average rainfall in December - Carbert, MT
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days in December
Carbert, MT

Average rainfall days in December - Carbert, MT
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in December
Carbert, MT

Average snowfall in December - Carbert, MT
  • Average snowfall in December: 3.19"

The month with the highest snowfall is November (3.74").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Carbert, MT

Average snowfall days in December - Carbert, MT
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Carbert, 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 18min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in December
Carbert, MT

Average sunshine days in December - Carbert, MT
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).

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Average UV index in December
Carbert, MT

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Carbert, MT

Average cloud cover in December - Carbert, MT
  • Average cloud cover in December: 56

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in December
Carbert, MT

Average visibility in December - Carbert, MT
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

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Carbert, Montana, USA

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