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 is the month that records the lowest temperatures, with averages ranging from a high of 27.5°F (-2.5°C) to a low of 14.9°F (-9.5°C).Humidity
The average relative humidity in December is 76%.Rainfall
December is the month with the least rainfall. Rain falls for 8.5 days and accumulates 0.55" (14mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In December, it is snowing for 12.2 days. Throughout December, 4.33" (110mm) of snow is accumulated. In Bridger, during the entire year, snow falls for 92.3 days and aggregates up to 55.83" (1418mm) of snow.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 7:35 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:54 am and sunset at 4:43 pm MST.
Sunshine
The average sunshine in December is 6.6h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is December?
What is the average humidity in December?
What is the driest month?
How much 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 Bridger have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Bridger, MT
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (27.5°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is July (56.1°F).
The coldest months (with the lowest average low temperature) are February and December (14.9°F).
Average pressure in December
Bridger, MT
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Bridger, MT
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Bridger, MT
- Average humidity in December: 76%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Bridger, MT
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (0.55").
Average rainfall days in December
Bridger, MT
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is November (5.7 days).
Average snowfall in December
Bridger, MT
- Average snowfall in December: 4.33"
The month with the highest snowfall is April (9.37").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Bridger, MT
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is February (14.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Bridger, 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: 6h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in December
Bridger, MT
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is December (17.4 days).
The month with the least sunshine days is May (5.1 days).
Average UV index in December
Bridger, 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, April, October, November and December (UV index 2).
Average cloud cover in December
Bridger, MT
- Average cloud cover in December: 31
The month with the most cloud cover is February (Cloud cover 36).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in December
Bridger, 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).
Bridger, Montana, USA
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