December weather forecastRubicon, WI
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Rubicon, Wisconsin, with an average temperature varying between 30.6°F (-0.8°C) and 20.7°F (-6.3°C).Temperature
The arrival of December indicates a decrease in the average high-temperature, moving from a wintry 42.6°F (5.9°C) in November to a subzero cold 30.6°F (-0.8°C). An average temperature of 20.7°F (-6.3°C) is recorded in Rubicon during the nights in December.Humidity
The average relative humidity in December is 84%.Rainfall
The months with the least rainfall are February and December Rain falls for 6.6 days and accumulates 1.18" (30mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In Rubicon, during December, snow falls for 13.3 days and regularly aggregates up to 3.31" (84mm) of snow. In Rubicon, during the entire year, snow falls for 60.3 days and aggregates up to 17.72" (450mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:28 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 in Rubicon. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rubicon, WI
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in December: 20.7°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 (12.7°F).
Average pressure in December
Rubicon, 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
Rubicon, WI
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Rubicon, 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 (77%).
Average rainfall in December
Rubicon, WI
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are February and December (1.18").
Average rainfall days in December
Rubicon, WI
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Rubicon, WI
- Average snowfall in December: 3.31"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rubicon, WI
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rubicon, 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: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Rubicon, WI
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Rubicon, WI
- Average UV index in December: 1
The months with the highest UV index are May, 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
Rubicon, 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 July, August and September (Cloud cover 31).
Average visibility in December
Rubicon, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
