December weather forecastTwin Bluffs, WI
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Twin Bluffs, Wisconsin, with an average temperature fluctuating between 18.5°F (-7.5°C) and 29.3°F (-1.5°C).Temperature
Twin Bluffs's December weather comes with a decrease in average high-temperatures, moving from a wintry 42.3°F (5.7°C) in November to a freezing cold 29.3°F (-1.5°C). Throughout December, Twin Bluffs encounters an average temperature drop to a still subzero cold 18.5°F (-7.5°C).Humidity
The average relative humidity in December is 85%.Rainfall
In Twin Bluffs, during December, the rain falls for 6.1 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Twin Bluffs, there are 147.8 rainfall days, and 30.94" (786mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Twin Bluffs, in December, snow falls for 12.6 days, with typically accumulated 4.02" (102mm) of snow. In Twin Bluffs, during the entire year, snow falls for 61.1 days and aggregates up to 23.43" (595mm) of snow.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 7:14 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:33 am and sunset at 4:35 pm CST.
Sunshine
In Twin Bluffs, the average sunshine in December is 3.6h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 1 in December translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. During bright days, sunglasses that offer UVA and UVB defense are recommended. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Twin Bluffs, WI
- Average high temperature in December: 29.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Twin Bluffs, 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 (29.9"Hg).
Average wind speed in December
Twin Bluffs, WI
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Twin Bluffs, WI
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Twin Bluffs, WI
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is June (4.53").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Twin Bluffs, WI
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Twin Bluffs, WI
- Average snowfall in December: 4.02"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Twin Bluffs, WI
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Twin Bluffs, 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 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Twin Bluffs, WI
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in December
Twin Bluffs, 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, November and December (UV index 1).
Average cloud cover in December
Twin Bluffs, WI
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Twin Bluffs, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).





