December weather forecastBozeman, MT
December
Weather in December
December, the final month of the year, covers Bozeman, Montana in a thick blanket of snow. The town experiences one of its highest snowfall values, amounting to 11.38" (289mm) on average. The steep drop in temperature gives the region an unmistakably wintry feel. Even though daylight hours are limited, the enchanting visuals of a snow-covered Bozeman, decorated for the holiday season, provide a magical end to the year.Temperature
December is the month when Bozeman sees the lowest average temperatures, with a high of 24.8°F (-4°C) and a low of 10.4°F (-12°C).Humidity
In December, the average relative humidity is 88%.Rainfall
In Bozeman, during December, the rain falls for 5.4 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 131 rainfall days, and 23.15" (588mm) of precipitation is accumulated.Snowfall
Months with snowfall in Bozeman are January through June, September through December. In Bozeman, in December, during 18.5 snowfall days, 11.38" (289mm) of snow is typically accumulated. In Bozeman, during the entire year, snow falls for 122.8 days and aggregates up to 91.1" (2314mm) of snow.Daylight
The month with the shortest days in Bozeman, Montana, is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:45 am and sunset at 4:41 pm. On the last day of December, sunrise is at 8:04 am and sunset at 4:50 pm MST.
Sunshine
In Bozeman, the average sunshine in December is 4.7h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bozeman, MT
- Average high temperature in December: 24.8°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (24.8°F).
- Average low temperature in December: 10.4°F
The months with the highest average low temperature are July and August (46.9°F).
The coldest month (with the lowest average low temperature) is December (10.4°F).
Average pressure in December
Bozeman, MT
- Average pressure in December: 30.19"Hg
The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Bozeman, MT
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is January (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Bozeman, MT
- Average humidity in December: 88%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (51%).
Average rainfall in December
Bozeman, MT
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is August (1.3").
Average rainfall days in December
Bozeman, MT
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in December
Bozeman, MT
- Average snowfall in December: 11.38"
The month with the highest snowfall is February (15.51").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Bozeman, MT
- Average snowfall days in December: 18.5 days
The month with the highest number of snowfall days is February (20.3 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Bozeman, MT
- Average daylight in December: 8h and 48min
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: 4h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in December
Bozeman, MT
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is April (7 days).
Average UV index in December
Bozeman, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Bozeman, MT
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Bozeman, MT
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
