Contents
- 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
Weather in December
Temperature
December, with an average high of 27.5°F (-2.5°C) and a low of 16°F (-8.9°C), signifies the coldest month of the year.Humidity
In December, the average relative humidity is 79%.Rainfall
The month with the least rainfall is December, when the rain falls for 4.7 days and typically collects 0.43" (11mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In December, it is snowing for 11 days. Throughout December, 3.11" (79mm) of snow is accumulated. In Box Elder, Montana, during the entire year, snow falls for 55.7 days and aggregates up to 22.09" (561mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:50 am and sunset at 4:27 pm. On the last day of December, sunrise is at 8:11 am and sunset at 4:35 pm MST.
Sunshine
In Box Elder, Montana, the average sunshine in December is 5.5h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is December?
What is the average humidity in December?
What is the driest month in Box Elder?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Box Elder have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Box Elder have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Box Elder, MT
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (27.5°F).
- Average low temperature in December: 16°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (14°F).
Average pressure in December
Box Elder, MT
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Box Elder, MT
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is November (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).
Average humidity in December
Box Elder, MT
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Box Elder, MT
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in December
Box Elder, MT
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Box Elder, MT
- Average snowfall in December: 3.11"
The month with the highest snowfall is January (3.9").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Box Elder, MT
- Average snowfall days in December: 11 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Box Elder, MT
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in December
Box Elder, MT
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is April (12.2 days).
Average UV index in December
Box Elder, 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).
Average cloud cover in December
Box Elder, 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 16).
Average visibility in December
Box Elder, 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).
Box Elder, Montana, USA
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