December weather forecastMequon, WI
December
Weather in December
Winter's arrival in December transforms Mequon, Wisconsin into a snowy wonderland with temperatures between 32.2°F (0.1°C) and 23.7°F (-4.6°C). The short days and blue twilight cast a cold beauty over the frosty landscape. A veil of white descends upon the town, softening the angles and muting the colors except for bright red cardinals and twinkling holiday lights. Warm glows emanate from windows while fireplaces burn, keeping homes cozy during the chilling nights. The first carols heard in the air signal the start of the holiday season, bringing an end to the year with a festive note.Temperature
The start of December in Mequon comes with a reduction in the average high-temperature, receding from a chilly 43.7°F (6.5°C) in November to a wintry 32.2°F (0.1°C). Nights in December showcase an average temperature of 23.7°F (-4.6°C), slightly cooler than the daytime.Humidity
In December, the average relative humidity in Mequon, Wisconsin, is 82%.Rainfall
The months with the least rainfall are February and December Rain falls for 6.4 days and accumulates 0.94" (24mm) of rain.Snowfall
January through April, October through December are months with snowfall in Mequon. In Mequon, in December, during 10.1 snowfall days, 2.01" (51mm) of snow is typically accumulated. In Mequon, during the entire year, snow falls for 47.8 days and aggregates up to 11.57" (294mm) of snow.Daylight
The month with the shortest days in Mequon is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 4:17 pm. On the last day of December, in Mequon, sunrise is at 7:24 am and sunset at 4:26 pm CST.
Sunshine
In Mequon, 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 Mequon. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 1 during December leads to these advisories:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mequon, WI
- Average high temperature in December: 32.2°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Mequon, WI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Mequon, WI
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in December
Mequon, 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 (76%).
Average rainfall in December
Mequon, WI
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is July (2.8").
The driest months (with the least rainfall) are February and December (0.94").
Average rainfall days in December
Mequon, WI
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Mequon, WI
- Average snowfall in December: 2.01"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mequon, WI
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (12.2 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
Mequon, 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 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Mequon, WI
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is December (16.8 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
Mequon, 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
Mequon, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Mequon, 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).
