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 suggests a modest reduction in the average high-temperature, shifting from an icy 36.7°F (2.6°C) in November to a subzero cold 23.4°F (-4.8°C). Throughout December, the temperature falls to an average low of 12.7°F (-10.7°C).Humidity
In New Post, the average relative humidity in December is 90%.Rainfall
In New Post, during December, the rain falls for 3 days and regularly aggregates up to 1.3" (33mm) of precipitation. In New Post, during the entire year, the rain falls for 109.7 days and collects up to 20.04" (509mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 14.9 days and typically aggregates up to 6.5" (165mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:30 pm CST.
Sunshine
In December, the average sunshine is 2.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 1 transforms into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. 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
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does New Post have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
New Post, WI
- Average high temperature in December: 23.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (17.6°F).
- Average low temperature in December: 12.7°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).
Average pressure in December
New Post, WI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
New Post, WI
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
New Post, WI
- Average humidity in December: 90%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (73%).
Average rainfall in December
New Post, WI
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in December
New Post, WI
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
New Post, WI
- Average snowfall in December: 6.5"
The month with the highest snowfall is December (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
New Post, WI
- Average snowfall days in December: 14.9 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
New Post, WI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
New Post, WI
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
New Post, WI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
New Post, WI
- Average cloud cover in December: 75
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
New Post, WI
- Average visibility in December: 4mi
The months with the highest visibility are May, June and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
New Post, Wisconsin, USA
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