December weather forecastEau Claire, WI

December
Weather in December
December in Eau Claire solidifies the arrival of winter with temperatures further plunging and an increase of 4.69" (119mm) in snowfall. The city transforms into a winter wonderland attracting visitors interested in the snowy landscapes. It is common to see residents and visitors engaging in winter sports and other snowy activities. Despite the decrease in daylight hours, the festive season keeps the city vibrant and full of energy. Towards the end of December, the chilly weather continues, setting the tone for the incoming new year.Temperature
Witnessing a clear drop in December, the average high-temperature declines from November's wintry 39.6°F (4.2°C) to a subzero cold 24.8°F (-4°C). Throughout the December nights, Eau Claire encounters a low-temperature of 14.2°F (-9.9°C).Humidity
In Eau Claire, Wisconsin, the average relative humidity in December is 89%.Rainfall
In December, the rain falls for 4.1 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. In Eau Claire, during the entire year, the rain falls for 128.5 days and collects up to 26.22" (666mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Eau Claire, Wisconsin, in December, snow falls for 11.3 days, with typically accumulated 4.69" (119mm) of snow. In Eau Claire, Wisconsin, during the entire year, snow falls for 57.9 days and aggregates up to 25.87" (657mm) of snow.Daylight
The month with the shortest days in Eau Claire is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:35 pm CST.
Sunshine
In Eau Claire, the average sunshine in December is 3h.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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Eau Claire, WI
- Average high temperature in December: 24.8°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in December: 14.2°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 (6.3°F).
Average pressure in December
Eau Claire, WI
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Eau Claire, WI
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Eau Claire, WI
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Eau Claire, WI
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in December
Eau Claire, WI
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in December
Eau Claire, WI
- Average snowfall in December: 4.69"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Eau Claire, WI
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Eau Claire, WI
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in December
Eau Claire, WI
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is June (10 days).
Average UV index in December
Eau Claire, 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
Eau Claire, WI
- Average cloud cover in December: 69
The months with the most cloud cover are January, February and December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Eau Claire, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





