December weather forecastClinton, WI
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Clinton, Wisconsin, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 31.6°F (-0.2°C).Temperature
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a frosty 43.7°F (6.5°C) to a freezing cold 31.6°F (-0.2°C). An average nighttime temperature of 21.6°F (-5.8°C) is recorded during December.Humidity
The average relative humidity in December in Clinton is 83%.Rainfall
December is the month with the least rainfall. Rain falls for 6.3 days and accumulates 0.47" (12mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Clinton. In Clinton, in December, during 8.9 snowfall days, 0.79" (20mm) of snow is typically accumulated. Throughout the year, there are 40.5 snowfall days, and 6.3" (160mm) of snow is accumulated.Daylight
The month with the shortest days in Clinton is December, with an average of 9h and 6min of daylight.On the first day of December in Clinton, sunrise is at 7:06 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:32 pm CST.
Sunshine
In Clinton, Wisconsin, the average sunshine in December is 3.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Clinton. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clinton, WI
- Average high temperature in December: 31.6°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in December
Clinton, WI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Clinton, WI
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Clinton, WI
- Average humidity in December: 83%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in December
Clinton, WI
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is July (1.73").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in December
Clinton, WI
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is July (15.3 days).
The months with the least rainy days are January and February (3.3 days).
Average snowfall in December
Clinton, WI
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (2.01").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Clinton, WI
- Average snowfall days in December: 8.9 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clinton, WI
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Clinton, WI
- Average sunshine days in December: 19 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
Clinton, WI
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Clinton, WI
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in December
Clinton, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).





