December weather forecastStevensville, MT
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Stevensville, Montana, with an average temperature varying between 16°F (-8.9°C) and 28.4°F (-2°C).Temperature
With its high average temperature of 28.4°F (-2°C) and a low of 16°F (-8.9°C), December is regarded as the coldest month.Humidity
The average relative humidity in December is 86%.Rainfall
In December, the rain falls for 12.6 days. Throughout December, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 140.1 rainfall days, and 15.16" (385mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 16.7 days. Throughout December, 7.8" (198mm) of snow is accumulated. In Stevensville, during the entire year, snow falls for 87.7 days and aggregates up to 46.5" (1181mm) of snow.Daylight
The month with the shortest days in Stevensville is December, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 8:00 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:20 am and sunset at 4:59 pm MST.
Sunshine
In December, the average sunshine is 5.6h.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Stevensville, MT
- Average high temperature in December: 28.4°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in December: 16°F
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (16°F).
Average pressure in December
Stevensville, MT
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Stevensville, MT
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Stevensville, MT
- Average humidity in December: 86%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (49%).
Average rainfall in December
Stevensville, MT
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is February (1.93").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in December
Stevensville, MT
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in December
Stevensville, MT
- Average snowfall in December: 7.8"
The month with the highest snowfall is February (11.22").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Stevensville, MT
- Average snowfall days in December: 16.7 days
The month with the highest number of snowfall days is February (17.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Stevensville, MT
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Stevensville, MT
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (6.9 days).
Average UV index in December
Stevensville, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Stevensville, MT
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in December
Stevensville, 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).
