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
December's arrival coincides with a drop in the average high-temperature, decreasing from November's wintry 36.3°F (2.4°C) to a freezing cold 23.9°F (-4.5°C). The nighttime temperature dips to 14.2°F (-9.9°C) on average during December.Humidity
In Tripoli, the average relative humidity in December is 90%.Rainfall
In Tripoli, during December, the rain falls for 3.4 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Tripoli, during the entire year, the rain falls for 124.1 days and collects up to 24.61" (625mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 17.7 days and accumulates 8.23" (209mm) of snow.Daylight
The month with the shortest days in Tripoli is December, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:20 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:26 pm CST.
Sunshine
The average sunshine in December is 2.4h.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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Tripoli have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Tripoli, WI
- Average high temperature in December: 23.9°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 (18.3°F).
- Average low temperature in December: 14.2°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 (6.6°F).
Average pressure in December
Tripoli, WI
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Tripoli, WI
- Average wind speed in December: 8.4mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Tripoli, WI
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (73%).
Average rainfall in December
Tripoli, WI
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Tripoli, WI
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in December
Tripoli, WI
- Average snowfall in December: 8.23"
The month with the highest snowfall is December (8.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Tripoli, WI
- Average snowfall days in December: 17.7 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tripoli, WI
- Average daylight in December: 8h and 5min
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 2min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in December
Tripoli, WI
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is October (15.1 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in December
Tripoli, WI
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Tripoli, WI
- Average cloud cover in December: 77
The months with the most cloud cover are January and February (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Tripoli, 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).
Tripoli, Wisconsin, USA
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