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
A decrease in the average high-temperature marks December, falling from November's cold 39.9°F (4.4°C) to a freezing cold 24.6°F (-4.1°C). Throughout the month of December, the nighttime temperature in River Falls, Wisconsin, dips to an average of 14.7°F (-9.6°C).Humidity
In December, the average relative humidity is 89%.Rainfall
In River Falls, in December, during 4.5 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 123.7 rainfall days, and 20.43" (519mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In River Falls, in December, snow falls for 12.3 days, with typically accumulated 3.03" (77mm) of snow. Throughout the year, in River Falls, Wisconsin, there are 61.5 snowfall days, and 17.48" (444mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of December in River Falls, sunrise is at 7:28 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:39 pm CST.
Sunshine
In River Falls, the average sunshine in December is 3.4h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in River Falls. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during December translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in River Falls in December?
What is the average humidity in December in River Falls?
How many days does it rain in December in River Falls?
How much does it snow in River Falls in December?
What is the month with the shortest days in River Falls?
What is the average length of the day in December in River Falls?
When are sunrise and sunset in December in River Falls?
How many hours of sunshine does River Falls have in December?
What are the months with the lowest UV index in River Falls?
What is the UV index intensity in December in River Falls?
Average temperature in December
River Falls, WI
- Average high temperature in December: 24.6°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in December: 14.7°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in December
River Falls, WI
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
River Falls, WI
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
River Falls, WI
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
River Falls, WI
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
River Falls, WI
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
River Falls, WI
- Average snowfall in December: 3.03"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
River Falls, WI
- Average snowfall days in December: 12.3 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
River Falls, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h 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: 3h and 0min).
Average sunshine days in December
River Falls, WI
- Average sunshine days in December: 17.6 days
The months with the most sunshine days are October and December (17.6 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
River Falls, WI
- 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
River Falls, WI
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
River Falls, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
River Falls, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location