December weather forecastFond du Lac, WI
December
Weather in December
By December, winter is well underway in Fond du Lac, with temperatures plunging to a chilling low of 19.4°F (-7°C). Increasing cloudiness, fewer sunshine hours of approximately 3.6 hours per day combined with a 0.67" (17mm) snowfall, mark the peak of the cold season. Combined with the area's yearly highest relative humidity of 86%, the chilly month requires heavy winter gears for any outdoor trips. As the year concludes, the cityscape is a blend of white snow and Christmas lights, creating a picturesque winter wonderland.Temperature
In the transition to December, Fond du Lac observes a drop in the average high-temperature, moving from a wintry 42.1°F (5.6°C) in November to a subzero cold 29.1°F (-1.6°C). In Fond du Lac, the expected average low-temperature for December is a still freezing cold 19.4°F (-7°C).Humidity
The average relative humidity in December in Fond du Lac is 86%.Rainfall
In December, the rain falls for 3.7 days. Throughout December, 0.35" (9mm) of precipitation is accumulated. In Fond du Lac, during the entire year, the rain falls for 90.7 days and collects up to 7.56" (192mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Fond du Lac, in December, during 9.3 snowfall days, 0.67" (17mm) of snow is typically accumulated. Throughout the year, there are 42 snowfall days, and 4.25" (108mm) 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 7:08 am and sunset at 4:17 pm. On the last day of December, in Fond du Lac, sunrise is at 7:27 am and sunset at 4:26 pm CST.
Sunshine
The average sunshine in December is 3.6h.UV index
January, November 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 minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fond du Lac, WI
- Average high temperature in December: 29.1°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in December: 19.4°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
Fond du Lac, 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 (29.91"Hg).
Average wind speed in December
Fond du Lac, WI
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in December
Fond du Lac, WI
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Fond du Lac, WI
- Average rainfall in December: 0.35"
The wettest months (with the highest rainfall) are June and October (0.94").
The driest months (with the least rainfall) are January and February (0.31").
Average rainfall days in December
Fond du Lac, WI
- Average rainfall days in December: 3.7 days
The months with the highest number of rainy days are April and July (11 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Fond du Lac, WI
- Average snowfall in December: 0.67"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Fond du Lac, WI
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (10.5 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
Fond du Lac, 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Fond du Lac, WI
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is June (15.6 days).
Average UV index in December
Fond du Lac, 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, November and December (UV index 1).
Average cloud cover in December
Fond du Lac, WI
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Fond du Lac, WI
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January and September (5mi).
