December weather forecastGills Rock, WI
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Gills Rock, Wisconsin, with an average temperature ranging between max 31.1°F (-0.5°C) and min 25.5°F (-3.6°C).Temperature
The onset of December introduces a moderate change in Gills Rock's weather, with average high-temperatures falling from November's cold 41.7°F (5.4°C) to a freezing cold 31.1°F (-0.5°C). Gills Rock marks an average drop to 25.5°F (-3.6°C) during nighttime in December, following the high of the day.Humidity
The average relative humidity in December is 81%.Rainfall
In December, in Gills Rock, the rain falls for 7.5 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 141.7 rainfall days, and 26.93" (684mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Gills Rock, in December, during 12.4 snowfall days, 2.99" (76mm) of snow is typically accumulated. Throughout the year, there are 62.3 snowfall days, and 15.83" (402mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:15 pm CST.
Sunshine
In Gills Rock, the average sunshine in December is 3.2h.UV index
January, March 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 low health risk from exposure to the Sun's UV radiation for average individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gills Rock, WI
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in December
Gills Rock, WI
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Gills Rock, WI
- Average wind speed in December: 15.5mph
The windiest month (with the highest average wind speed) is December (15.5mph).
The calmest months (with the lowest average wind speed) are June and July (9.6mph).
Average humidity in December
Gills Rock, WI
- Average humidity in December: 81%
The months with the highest relative humidity are January and June (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Gills Rock, WI
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are January and February (1.38").
Average rainfall days in December
Gills Rock, WI
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Gills Rock, WI
- Average snowfall in December: 2.99"
The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Gills Rock, WI
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gills Rock, WI
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Gills Rock, WI
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in December
Gills Rock, WI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in December
Gills Rock, WI
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Gills Rock, WI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
