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
In December, the average high-temperature decreases from a chilly 43°F (6.1°C) in November to a wintry 32°F (0°C). In Cedar Grove, the December nights are characterized by an average low-temperature of 23.9°F (-4.5°C), a minor dip from daytime readings.Humidity
In December, the average relative humidity in Cedar Grove is 82%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 141.6 rainfall days, and 28.23" (717mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Cedar Grove. December is the month with the most snowfall. Snow falls for 9.8 days and accumulates 2.99" (76mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December in Cedar Grove, sunrise is at 7:05 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:24 pm CST.
Sunshine
In December, the average sunshine is 3.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. 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, 1 during December, leads to the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Cedar Grove have in December?
When is the sunrise / sunset in December in Cedar Grove?
How many hours of sunshine does Cedar Grove have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Cedar Grove, WI
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Cedar Grove, WI
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Cedar Grove, WI
- Average wind speed in December: 12.7mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).
Average humidity in December
Cedar Grove, WI
- Average humidity in December: 82%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in December
Cedar Grove, WI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in December
Cedar Grove, WI
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Cedar Grove, WI
- Average snowfall in December: 2.99"
The month with the highest snowfall is December (2.99").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Cedar Grove, WI
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cedar Grove, WI
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Cedar Grove, WI
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is December (16.2 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in December
Cedar Grove, WI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Cedar Grove, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Cedar Grove, WI
- 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).
Cedar Grove, Wisconsin, USA
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