December weather forecast
Broadus, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Broadus, Montana, with an average temperature varying between 16.7°F (-8.5°C) and 30.4°F (-0.9°C).

Temperature

The month of December, characterized by an average high of 30.4°F (-0.9°C) and a low of 16.7°F (-8.5°C), is recognized as the coldest.

Humidity

The average relative humidity in December is 77%.

Rainfall

December is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Broadus, during December, snow falls for 9.3 days and regularly aggregates up to 3.15" (80mm) of snow. Throughout the year, there are 55.2 snowfall days, and 23.5" (597mm) of snow is accumulated.

Daylight

With an average of 8h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:41 am and sunset at 4:28 pm MST.

Sunshine

The average sunshine in December is 5.4h.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Boost your sun resistance with garments that are densely woven yet spacious. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

What are the coldest months?

In Broadus, December registers the lowest temperatures, averaging 30.4°F (-0.9°C) at the peak and 16.7°F (-8.5°C) at the lowest.

How cold is December?

The high-temperature, in December, in Broadus, is 30.4°F (-0.9°C), while the low-temperature averages to 16.7°F (-8.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 82.4°F (28°C).

What is the average humidity in December?

In December, the average relative humidity is 77%.

What is the driest month in Broadus?

December is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.47" (12mm) of precipitation.

How much does it rain in December?

In Broadus, in December, it is raining for 3.4 days, with typically 0.47" (12mm) of accumulated precipitation.

How many days does it snow in December?

In Broadus, Montana, in December, snow falls for 9.3 days, with typically accumulated 3.15" (80mm) of snow.

What is the month with the shortest days?

With an average of 8h and 48min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 8h and 47min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:21 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:28 pm MST.

How many hours of sunshine does Broadus have in December?

The average sunshine duration in December is 5.4h.

What is the month with the lowest UV index?

January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Broadus, MT

Average temperature in December - Broadus, MT
  • Average high temperature in December: 30.4°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in December
Broadus, MT

Average pressure in December - Broadus, MT
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Broadus, MT

Average wind speed in December - Broadus, MT
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in December
Broadus, MT

Average humidity in December - Broadus, MT
  • Average humidity in December: 77%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (42%).

Average rainfall in December
Broadus, MT

Average rainfall in December - Broadus, MT
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").

Average rainfall days in December
Broadus, MT

Average rainfall days in December - Broadus, MT
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in December
Broadus, MT

Average snowfall in December - Broadus, MT
  • Average snowfall in December: 3.15"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Broadus, MT

Average snowfall days in December - Broadus, MT
  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Broadus, MT
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in December
Broadus, MT

Average sunshine days in December - Broadus, MT
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
Broadus, MT

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).

Average cloud cover in December
Broadus, MT

Average cloud cover in December - Broadus, MT
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in December
Broadus, MT

Average visibility in December - Broadus, 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).

Broadus, Montana, USA

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