December weather forecastUpson, WI
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Upson, Wisconsin, with an average temperature varying between 24.4°F (-4.2°C) and 16.3°F (-8.7°C).Temperature
As December begins, there is a decrease in the average high-temperature, falling from a wintry 36.5°F (2.5°C) in November to a subzero cold 24.4°F (-4.2°C). In Upson, December nights experience a modest descent in temperature from daily peaks, cooling down to an average of 16.3°F (-8.7°C).Humidity
In Upson, the average relative humidity in December is 89%.Rainfall
In Upson, during December, the rain falls for 4.2 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, in Upson, there are 120.3 rainfall days, and 21.65" (550mm) 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 23.6 days and accumulates 10.04" (255mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:25 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:25 pm CST.
Sunshine
The average sunshine in December is 2.4h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Upson, WI
- Average high temperature in December: 24.4°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in December: 16.3°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in December
Upson, WI
- Average pressure in December: 30.07"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
Upson, WI
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is November (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Upson, WI
- Average humidity in December: 89%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Upson, WI
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and February (1.22").
Average rainfall days in December
Upson, WI
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in December
Upson, WI
- Average snowfall in December: 10.04"
The month with the highest snowfall is December (10.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Upson, WI
- Average snowfall days in December: 23.6 days
The month with the highest number of snowfall days is January (24.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Upson, WI
- Average daylight in December: 8h and 42min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in December
Upson, WI
- Average sunshine days in December: 7.1 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in December
Upson, 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, November and December (UV index 1).
Average cloud cover in December
Upson, WI
- Average cloud cover in December: 76
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Upson, WI
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
