December weather forecastRhinelander, WI
December
Weather in December
December, the first month of the winter in Rhinelander, is also a subzero cold month, with temperature in the range of an average low of 15.4°F (-9.2°C) and an average high of 24.8°F (-4°C).Temperature
In December, the average high-temperature decreases from an icy 36.7°F (2.6°C) in November to a subzero cold 24.8°F (-4°C). During the month of December, Rhinelander's nighttime temperature lowers to an average of 15.4°F (-9.2°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Rhinelander, in December, it is raining for 4.6 days, with typically 1.54" (39mm) of accumulated precipitation. In Rhinelander, during the entire year, the rain falls for 125.3 days and collects up to 22.87" (581mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 20.1 days and accumulates 8.58" (218mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:18 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:23 pm CST.
Sunshine
In Rhinelander, Wisconsin, the average sunshine in December is 2.5h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rhinelander, WI
- Average high temperature in December: 24.8°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in December
Rhinelander, WI
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Rhinelander, WI
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are April and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Rhinelander, WI
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Rhinelander, WI
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Rhinelander, WI
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Rhinelander, WI
- Average snowfall in December: 8.58"
The month with the highest snowfall is December (8.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rhinelander, WI
- Average snowfall days in December: 20.1 days
The month with the highest number of snowfall days is January (21.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rhinelander, 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: 2h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in December
Rhinelander, WI
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is October (14.3 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Rhinelander, WI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Rhinelander, WI
- Average cloud cover in December: 76
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Rhinelander, WI
- Average visibility in December: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January and February (4mi).





