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 decrease of average high-temperatures is mild in December, with a decline from a wintry 42.1°F (5.6°C) in November to a subzero cold 29.8°F (-1.2°C). The nighttime temperature, during December, averages of 19.6°F (-6.9°C).Humidity
The average relative humidity in December in Windsor, Wisconsin, is 84%.Rainfall
In Windsor, Wisconsin, in December, it is raining for 5.2 days, with typically 0.75" (19mm) of accumulated precipitation. In Windsor, during the entire year, the rain falls for 122.8 days and collects up to 15.51" (394mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Windsor, in December, snow falls for 10 days, with typically accumulated 1.42" (36mm) of snow. Throughout the year, there are 47.9 snowfall days, and 10.55" (268mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:10 am and sunset at 4:23 pm. On the last day of December, in Windsor, sunrise is at 7:29 am and sunset at 4:32 pm CST.
Sunshine
In Windsor, Wisconsin, the average sunshine in December is 3.9h.UV index
The months with the lowest UV index in Windsor are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Windsor?
What is the average humidity in December in Windsor?
How much does it rain in Windsor in December?
How many days does it snow in December in Windsor?
What is the month with the shortest days in Windsor?
What is the average length of the day in December in Windsor?
When is the sunrise / sunset in December in Windsor?
How long on average sun shines in December in Windsor?
When is the lowest UV index in Windsor?
What is the UV index intensity in December in Windsor?
Average temperature in December
Windsor, WI
- Average high temperature in December: 29.8°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 (23.2°F).
- Average low temperature in December: 19.6°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Windsor, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Windsor, WI
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Windsor, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in December
Windsor, WI
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Windsor, WI
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is June (17 days).
The months with the least rainy days are January and February (3.8 days).
Average snowfall in December
Windsor, WI
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Windsor, WI
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Windsor, WI
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Windsor, WI
- Average sunshine days in December: 18.2 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Windsor, 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 and December (UV index 1).
Average cloud cover in December
Windsor, WI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Windsor, 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).
Windsor, Wisconsin, USA
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