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
Onset of December witnesses a reduction in the average high-temperature, falling from a cold 37.9°F (3.3°C) in November to a subzero cold 23.7°F (-4.6°C). The average temperature in Clayton drops to an extreme cold 12.9°F (-10.6°C) during the night in the month of December.Humidity
In December, the average relative humidity in Clayton is 90%.Rainfall
In Clayton, in December, during 4.1 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Clayton, Wisconsin, during the entire year, the rain falls for 128.1 days and collects up to 23.46" (596mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 14.7 days and typically aggregates up to 4.8" (122mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:27 pm. On the last day of December, in Clayton, sunrise is at 7:48 am and sunset at 4:36 pm CST.
Sunshine
In December, the average sunshine in Clayton, Wisconsin, is 2.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Boost your sun resistance with garments that are densely woven yet spacious. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Clayton?
What is the average humidity in December in Clayton?
How much does it rain in Clayton in December?
When does it snow the most in Clayton?
How much does it snow in Clayton in December?
What is the month with the shortest days in Clayton?
What is the average length of the day in December in Clayton?
When are sunrise and sunset in December in Clayton?
How many hours of sunshine does Clayton have in December?
When is the lowest UV index in Clayton?
What is the UV index intensity in December in Clayton?
Average temperature in December
Clayton, WI
- Average high temperature in December: 23.7°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in December: 12.9°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in December
Clayton, WI
- Average pressure in December: 30.1"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
Clayton, WI
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
Clayton, WI
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Clayton, WI
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Clayton, WI
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in December
Clayton, WI
- Average snowfall in December: 4.8"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clayton, WI
- Average snowfall days in December: 14.7 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clayton, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Clayton, WI
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in December
Clayton, 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
Clayton, WI
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Clayton, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Clayton, Wisconsin, USA
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