December weather - Winter 2024

Weather in December
Frequently asked questions
Average temperature in December
Average pressure in December
Average wind speed in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average snowfall in December
Average snowfall days in December
Average daylight in December
Average sunshine in December
Average sunshine days in December
Average UV index in December
Average cloud cover in December
Average visibility in December

Houses and old frames in an open space that is a former mine ground in Butte, Montana

Weather in December

December in Butte, Montana, is synonymous with a white Christmas, promising picturesque snow-covered landscapes. This winter month solidifies the cold weather with daily low temperatures dropping down to 9°F (-12.8°C). Comparing with November, residents experience a sharper descent into the frigid winter days, making outdoor activities a chilly adventure. Despite the biting cold, the community in Butte embraces the holiday spirit, making the city a delightful winter destination. Filled with festive cheer and snow-covered streets, December in Butte is an enchanting end to the year.

Temperature

In Butte, the lowest average temperatures are observed in December, with a high of 25.2°F (-3.8°C) and a low of 9°F (-12.8°C).

Humidity

January, February and December, with an average relative humidity of 87%, are the most humid months in Butte.

Rainfall

The months with the least rainfall in Butte are January, November and December Rain falls for 5.7 days and accumulates 0.67" (17mm) of rain.

Snowfall

Months with snowfall are January through June, September through December. In Butte, in December, during 15.3 snowfall days, 5.51" (140mm) of snow is typically accumulated. In Butte, during the entire year, snow falls for 103.1 days and aggregates up to 52.56" (1335mm) of snow.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:52 am and sunset at 4:46 pm. On the last day of December, sunrise is at 8:11 am and sunset at 4:55 pm MST.

Sunshine

The month with the least sunshine in Butte is December, with an average of 5.3h of sunshine.

UV index

In Butte, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

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Frequently asked questions

What part of the year is the coldest in Butte?

December is the coldest month of the year in Butte, registering average temperatures as high as 25.2°F (-3.8°C) and as low as 9°F (-12.8°C).

How cold is it in Butte in December?

In Butte, 25.2°F (-3.8°C) is the average high-temperature and 9°F (-12.8°C) is the average low-temperature during December.

What are the most humid months in Butte?

The months with the highest humidity in Butte are January, February and December, with an average relative humidity of 87%.

What is the average humidity in December in Butte?

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

What is the driest month in Butte?

January, November and December are months with the least rain when the rain falls for 5.7 days and typically aggregates up to 0.67" (17mm) of rain.

How much does it rain in Butte in December?

In Butte, during December, the rain falls for 5.7 days and regularly aggregates up to 0.67" (17mm) of precipitation.

How many days does it snow in December in Butte?

In Butte, Montana, during December, snow falls for 15.3 days and regularly aggregates up to 5.51" (140mm) of snow.

What is the month with the shortest days in Butte?

With an average of 8h and 42min of daylight, December has the shortest days of the year in Butte, Montana.

What is the average length of the day in December in Butte?

In December, the average day length is 8h and 43min.

When are sunrise and sunset in December in Butte?

On the first day of December in Butte, sunrise is at 7:52 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:55 pm MST.

What is the month with the least sunshine in Butte?

The month with the least sunshine in Butte, Montana, is December, with an average of 5.3h of sunshine.

How long on average sun shines in December in Butte?

The average sunshine duration in December in Butte is 5.3h.

What is the UV index reading in December in Butte?

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

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

35.1°F 1.7°C

25.2°F -3.8°C

27.9°F -2.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7mph 11.3km/h

6.6mph 10.6km/h

7mph 11.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

17.3

15.3

16.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Butte, MT

Average high temperature in December: 25.2°F

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is December (25.2°F).

Average low temperature in December: 9°F

The month with the highest average low temperature is July (46.9°F).
The coldest month (with the lowest average low temperature) is December (9°F).

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Average pressure in December
Butte, MT

Average pressure in December: 30.2"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Butte, MT

Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Butte, MT

Average humidity in December: 87%

The months with the highest relative humidity are January, February and December (87%).
The month with the lowest relative humidity is July (48%).

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Average rainfall in December
Butte, MT

Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is May (2.24").
The driest months (with the least rainfall) are January, November and December (0.67").

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Average rainfall days in December
Butte, MT

Average rainfall days in December: 5.7 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is November (4.1 days).

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Average snowfall in December
Butte, MT

Average snowfall in December: 5.51"

The month with the highest snowfall is March (8.74").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Butte, MT

Average snowfall days in December: 15.3 days

The month with the highest number of snowfall days is February (17.7 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
Butte, MT

Average daylight in December: 8h and 4min

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 December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in December
Butte, MT

Average sunshine days in December: 15.3 days

The month with the most sunshine days is August (19.1 days).
The month with the least sunshine days is April (9.8 days).

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Average UV index in December
Butte, MT

Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Butte, MT

Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in December
Butte, MT

Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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December weather forecast
Butte, MT

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