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 stands out as Sun Prairie's coldest month, with temperatures ranging between an average high of 29.8°F (-1.2°C) and a low of 18.1°F (-7.7°C).Humidity
In Sun Prairie, the average relative humidity in December is 76%.Rainfall
In Sun Prairie, during December, the rain falls for 4.6 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Sun Prairie, during the entire year, the rain falls for 102.6 days and collects up to 11.89" (302mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Sun Prairie, in December, snow falls for 12.5 days, with typically accumulated 4.25" (108mm) of snow. Throughout the year, there are 66.6 snowfall days, and 32.17" (817mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of December in Sun Prairie, sunrise is at 7:53 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 4:44 pm MST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 5.5h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Sun Prairie. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What time of the year is the coldest in Sun Prairie?
How cold is it in Sun Prairie in December?
What is the average humidity in December in Sun Prairie?
How much does it rain in Sun Prairie in December?
How many days does it snow in December in Sun Prairie?
What is the month with the shortest days in Sun Prairie?
What is the average length of the day in December in Sun Prairie?
What time are sunrise and sunset in December in Sun Prairie?
What are the months with the least sunshine in Sun Prairie?
How many hours of sunshine does Sun Prairie have in December?
What are the months with the lowest UV index in Sun Prairie?
What is the UV index intensity in December in Sun Prairie?
Average temperature in December
Sun Prairie, MT
- Average high temperature in December: 29.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in December: 18.1°F
The month with the highest average low temperature is August (57.6°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in December
Sun Prairie, MT
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Sun Prairie, MT
- Average wind speed in December: 10.9mph
The windiest month (with the highest average wind speed) is November (11.2mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity in December
Sun Prairie, MT
- Average humidity in December: 76%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Sun Prairie, MT
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is June (1.97").
The driest months (with the least rainfall) are January and July (0.59").
Average rainfall days in December
Sun Prairie, MT
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is November (4.4 days).
Average snowfall in December
Sun Prairie, MT
- Average snowfall in December: 4.25"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Sun Prairie, MT
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Sun Prairie, MT
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Sun Prairie, MT
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in December
Sun Prairie, 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
Sun Prairie, MT
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in December
Sun Prairie, 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).
Sun Prairie, Montana, USA
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