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 transition into December indicates a reduction in the average high-temperature, down to a freezing cold 24.6°F (-4.1°C) from November's cold 36.5°F (2.5°C). Argonne logs an average low-temperature of 16°F (-8.9°C) during the nights of December, subtly lower than its daytime highs.Humidity
In Argonne, the average relative humidity in December is 88%.Rainfall
In Argonne, in December, during 4.6 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Argonne, during the entire year, the rain falls for 120.4 days and collects up to 22.99" (584mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Argonne, during December, snow falls for 17.6 days and regularly aggregates up to 7.36" (187mm) of snow. Throughout the year, there are 96.4 snowfall days, and 43.19" (1097mm) of snow is accumulated.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:16 am and sunset at 4:13 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:21 pm CST.
Sunshine
The average sunshine in December is 2.7h.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 vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 1 in December transforms into this advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Boost your sun resistance with garments that are densely woven yet spacious. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in Argonne in December?
What is the month with the shortest days?
How many hours of daylight does Argonne have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index in Argonne?
What is the UV index intensity in December?
Average temperature in December
Argonne, WI
- Average high temperature in December: 24.6°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 (19.8°F).
- Average low temperature in December: 16°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in December
Argonne, WI
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Argonne, 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 (6.7mph).
Average humidity in December
Argonne, 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
Argonne, WI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Argonne, WI
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in December
Argonne, WI
- Average snowfall in December: 7.36"
The month with the highest snowfall is February (7.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Argonne, WI
- Average snowfall days in December: 17.6 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Argonne, 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 4min
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
Argonne, WI
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in December
Argonne, 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
Argonne, WI
- Average cloud cover in December: 74
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Argonne, WI
- Average visibility in December: 5mi
The months with the highest visibility are May, June and October (6mi).
The months with the lowest visibility are January and February (4mi).
Argonne, Wisconsin, USA
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