December weather forecastWhitewater, WI
December
Weather in December
December, the first month of the winter in Whitewater, is still a freezing cold month, with an average temperature ranging between min 21.2°F (-6°C) and max 31.1°F (-0.5°C).Temperature
The onset of December entails a temperature shift, as the average high-temperature decreases from a frosty 43.7°F (6.5°C) in November to a freezing cold 31.1°F (-0.5°C). Whitewater's temperature tends to fall to an average low of 21.2°F (-6°C) during the nights of December.Humidity
The average relative humidity in December is 83%.Rainfall
The months with the least rainfall are January, February and December Rain falls for 6.3 days and accumulates 0.83" (21mm) of rain.Snowfall
Months with snowfall in Whitewater are January through May, October through December. In Whitewater, during December, snow falls for 9.7 days and regularly aggregates up to 1.89" (48mm) of snow. Throughout the year, there are 46.5 snowfall days, and 12.95" (329mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:30 pm CST.
Sunshine
The average sunshine in December is 3.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard 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:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Whitewater, WI
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Whitewater, WI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Whitewater, WI
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Whitewater, WI
- Average humidity in December: 83%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Whitewater, WI
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is June (2.87").
The driest months (with the least rainfall) are January, February and December (0.83").
Average rainfall days in December
Whitewater, WI
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Whitewater, WI
- Average snowfall in December: 1.89"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Whitewater, WI
- Average snowfall days in December: 9.7 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Whitewater, WI
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 3h and 54min
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 30min).
Average sunshine days in December
Whitewater, WI
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Whitewater, 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 and December (UV index 1).
Average cloud cover in December
Whitewater, WI
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in December
Whitewater, 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).
