December weather forecastSouth Wayne, WI
December
Weather in December
The first month of the winter, December, is also a subzero cold month in South Wayne, Wisconsin, with an average temperature fluctuating between 21.2°F (-6°C) and 31.5°F (-0.3°C).Temperature
In South Wayne, the average high-temperature in December decreases from a frosty 43.7°F (6.5°C) in November to a freezing cold 31.5°F (-0.3°C). South Wayne reports an average low-temperature of 21.2°F (-6°C) during the nights of December.Humidity
In South Wayne, the average relative humidity in December is 83%.Rainfall
In South Wayne, in December, it is raining for 6.5 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, in South Wayne, there are 140.7 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In South Wayne, in December, during 10.6 snowfall days, 2.95" (75mm) of snow is typically accumulated. In South Wayne, during the entire year, snow falls for 49.5 days and aggregates up to 14.76" (375mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:36 pm CST.
Sunshine
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. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
South Wayne, WI
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 21.2°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°F).
Average pressure in December
South Wayne, WI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
South Wayne, WI
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
South Wayne, WI
- Average humidity in December: 83%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April, October and November (77%).
Average rainfall in December
South Wayne, WI
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
South Wayne, WI
- Average rainfall days in December: 6.5 days
The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in December
South Wayne, WI
- Average snowfall in December: 2.95"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
South Wayne, WI
- Average snowfall days in December: 10.6 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
South Wayne, 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 months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
South Wayne, WI
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in December
South Wayne, WI
- Average UV index in December: 1
The months with the highest UV index are May, 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
South Wayne, WI
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in December
South Wayne, 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).
