December weather forecastAshippun, WI
December
Weather in December
December, the first month of the winter in Ashippun, is also a subzero cold month, with temperature in the range of an average low of 20.8°F (-6.2°C) and an average high of 30.7°F (-0.7°C).Temperature
In the transition to December, Ashippun observes a drop in the average high-temperature, moving from a chilly 43.2°F (6.2°C) in November to a freezing cold 30.7°F (-0.7°C). December nights experience a consistent temperature drop to 20.8°F (-6.2°C).Humidity
In Ashippun, the average relative humidity in December is 84%.Rainfall
February and December are months with the least rain when the rain falls for 6.2 days and typically aggregates up to 0.59" (15mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In Ashippun, Wisconsin, in December, during 10.6 snowfall days, 1.18" (30mm) of snow is typically accumulated. Throughout the year, there are 47.6 snowfall days, and 7.4" (188mm) 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 December, sunrise is at 7:06 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:28 pm CST.
Sunshine
In December, the average sunshine is 3.8h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. 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: The maximum UV index of 1 during December translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ashippun, WI
- Average high temperature in December: 30.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Ashippun, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Ashippun, WI
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Ashippun, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Ashippun, WI
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is July (1.85").
The driest months (with the least rainfall) are February and December (0.59").
Average rainfall days in December
Ashippun, WI
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in December
Ashippun, WI
- Average snowfall in December: 1.18"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ashippun, WI
- Average snowfall days in December: 10.6 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ashippun, 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 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Ashippun, WI
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in December
Ashippun, WI
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Ashippun, WI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in December
Ashippun, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
