December weather forecastArena, WI
December
Weather in December
December, the first month of the winter in Arena, is still a freezing cold month, with an average temperature fluctuating between 29.8°F (-1.2°C) and 19.4°F (-7°C).Temperature
December's arrival corresponds with a decrease in average high-temperatures, from November's cold 42.3°F (5.7°C) to a subzero cold 29.8°F (-1.2°C). In December, Arena records an average nighttime temperature of 19.4°F (-7°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Arena, during December, the rain falls for 4.9 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, there are 115.3 rainfall days, and 13.9" (353mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Arena, Wisconsin, during December, snow falls for 9.3 days and regularly aggregates up to 1.1" (28mm) of snow. In Arena, during the entire year, snow falls for 46.7 days and aggregates up to 8.9" (226mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:34 pm CST.
Sunshine
The average sunshine in December 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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. On your guard! Snow's reflection can almost 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
Arena, WI
- Average high temperature in December: 29.8°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in December: 19.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
Arena, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Arena, WI
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Arena, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in December
Arena, WI
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is June (1.85").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Arena, WI
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in December
Arena, WI
- Average snowfall in December: 1.1"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Arena, WI
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Arena, 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 48min
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 12min).
Average sunshine days in December
Arena, WI
- Average sunshine days in December: 19.3 days
The months with the most sunshine days are October and December (19.3 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in December
Arena, 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
Arena, WI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in December
Arena, 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).
