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 tends to be the coldest month, with temperatures averaging a daily high of 27.9°F (-2.3°C) and a low of 16.7°F (-8.5°C).Humidity
The average relative humidity in December is 88%.Rainfall
In December, the rain falls for 12.9 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. In Polson, during the entire year, the rain falls for 160.2 days and collects up to 18.11" (460mm) of precipitation.Snowfall
Months with snowfall in Polson are January through May, September through December. In Polson, during December, snow falls for 19.8 days and regularly aggregates up to 10.2" (259mm) of snow. In Polson, during the entire year, snow falls for 99 days and aggregates up to 47.28" (1201mm) of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year in Polson.On the first day of December, sunrise is at 8:05 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 8:25 am and sunset at 4:54 pm MST.
Sunshine
In Polson, the average sunshine in December is 4.8h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Polson?
How cold is December in Polson?
What is the average humidity in December in Polson?
How much does it rain in Polson in December?
How much does it snow in Polson in December?
What is the month with the shortest days in Polson?
What is the average length of the day in December in Polson?
What time are sunrise and sunset in December in Polson?
How many hours of sunshine does Polson have in December?
What is the month with the lowest UV index in Polson?
What is the UV index reading in December in Polson?
Average temperature in December
Polson, MT
- Average high temperature in December: 27.9°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in December: 16.7°F
The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in December
Polson, MT
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Polson, MT
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Polson, MT
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).
Average rainfall in December
Polson, MT
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days in December
Polson, MT
- Average rainfall days in December: 12.9 days
The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).
Average snowfall in December
Polson, MT
- Average snowfall in December: 10.2"
The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Polson, MT
- Average snowfall days in December: 19.8 days
The month with the highest number of snowfall days is December (19.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Polson, 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: 4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Polson, MT
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).
Average UV index in December
Polson, MT
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Polson, MT
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in December
Polson, MT
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Polson, Montana, USA
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