December weather forecastJackson, WI
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Jackson, Wisconsin, with an average temperature varying between 21.6°F (-5.8°C) and 31.1°F (-0.5°C).Temperature
As December arrives, Jackson's weather displays a decrease in high-temperatures, transitioning from November's frosty 43°F (6.1°C) to a subzero cold 31.1°F (-0.5°C). An average nighttime temperature of 21.6°F (-5.8°C) is noted during the month of December.Humidity
The average relative humidity in December is 84%.Rainfall
In Jackson, during December, the rain falls for 6 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, in Jackson, there are 139.5 rainfall days, and 26.77" (680mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Jackson, in December, snow falls for 10.5 days, with typically accumulated 3.5" (89mm) of snow. In Jackson, during the entire year, snow falls for 47.1 days and aggregates up to 16.54" (420mm) of snow.Daylight
The month with the shortest days 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 4:18 pm. On the last day of December, in Jackson, sunrise is at 7:24 am and sunset at 4:27 pm CST.
Sunshine
In Jackson, the average sunshine in December is 3.9h.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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jackson, WI
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in December
Jackson, 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
Jackson, WI
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Jackson, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in December
Jackson, WI
- Average rainfall in December: 1.34"
The wettest months (with the highest rainfall) are May and June (3.19").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in December
Jackson, WI
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Jackson, WI
- Average snowfall in December: 3.5"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Jackson, WI
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (11.7 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
Jackson, 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 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Jackson, WI
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is December (17.3 days).
The month with the least sunshine days is April (11.4 days).
Average UV index in December
Jackson, WI
- Average UV index in December: 1
The months with the highest UV index are 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
Jackson, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in December
Jackson, 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).
