Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a cold 38.3°F (3.5°C) in November to a freezing cold 24.8°F (-4°C). Rib Mountain, in December, experiences an average temperature of 15.1°F (-9.4°C) at night.Humidity
In December, the average relative humidity in Rib Mountain, Wisconsin, is 89%.Rainfall
In Rib Mountain, in December, it is raining for 4.6 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 118.3 rainfall days, and 17.83" (453mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 15.5 days and accumulates 4.65" (118mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:18 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:27 pm CST.
Sunshine
The average sunshine in December is 3.1h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Rib Mountain?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How much does it snow in Rib Mountain in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Rib Mountain, WI
- Average high temperature in December: 24.8°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in December: 15.1°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in December
Rib Mountain, WI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Rib Mountain, WI
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Rib Mountain, WI
- Average humidity in December: 89%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Rib Mountain, WI
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Rib Mountain, WI
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in December
Rib Mountain, WI
- Average snowfall in December: 4.65"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rib Mountain, WI
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rib Mountain, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 1min
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 48min).
Average sunshine days in December
Rib Mountain, WI
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in December
Rib Mountain, 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
Rib Mountain, WI
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Rib Mountain, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
Rib Mountain, Wisconsin, USA
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