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
The average high-temperature decreases in December, shifting from an icy 34.9°F (1.6°C) in November to a subzero cold 20.7°F (-6.3°C). In Swan River, the December nights cool down to an average low of 9.3°F (-12.6°C).Humidity
The average relative humidity in December is 90%.Rainfall
In Swan River, in December, during 2.6 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 113.8 rainfall days, and 18.94" (481mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Swan River. December is the month with the most snowfall. Snow falls for 19.9 days and accumulates 7.2" (183mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 7:38 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:33 pm CST.
Sunshine
In Swan River, the average sunshine in December is 2.4h.UV index
The months with the lowest UV index in Swan River are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
How cold is December in Swan River?
What is the average humidity in December in Swan River?
How much does it rain in Swan River in December?
What is the snowiest month in Swan River?
How many days does it snow in December in Swan River?
What is the month with the shortest days in Swan River?
How many hours of daylight does Swan River have in December?
When is the sunrise / sunset in December in Swan River?
How long on average sun shines in December in Swan River?
What is the month with the lowest UV index in Swan River?
What is the UV index intensity in December in Swan River?
Average temperature in December
Swan River, MN
- Average high temperature in December: 20.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (15.8°F).
- Average low temperature in December: 9.3°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).
Average pressure in December
Swan River, MN
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Swan River, MN
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Swan River, MN
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Swan River, MN
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in December
Swan River, MN
- Average rainfall days in December: 2.6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Swan River, MN
- Average snowfall in December: 7.2"
The month with the highest snowfall is December (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Swan River, MN
- Average snowfall days in December: 19.9 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Swan River, MN
- Average daylight in December: 8h and 4min
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 36min).
- Average sunshine in December: 2h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in December
Swan River, MN
- Average sunshine days in December: 12.3 days
The months with the most sunshine days are August and September (16.5 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in December
Swan River, MN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Swan River, MN
- Average cloud cover in December: 76
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Swan River, MN
- Average visibility in December: 4mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Swan River, Minnesota, USA
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