December weather forecastCornell, WI
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Cornell, Wisconsin, with an average temperature ranging between min 14°F (-10°C) and max 24.3°F (-4.3°C).Temperature
The arrival of December corresponds with a reduction in the average high-temperature, down from November's cold 38.3°F (3.5°C) to a freezing cold 24.3°F (-4.3°C). In the month of December, Cornell records a consistent average low-temperature of 14°F (-10°C).Humidity
The average relative humidity in December in Cornell, Wisconsin, is 90%.Rainfall
In Cornell, Wisconsin, during December, the rain falls for 4.9 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, in Cornell, there are 135.6 rainfall days, and 25.71" (653mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Cornell, in December, snow falls for 16.5 days, with typically accumulated 6.46" (164mm) of snow. In Cornell, during the entire year, snow falls for 83.4 days and aggregates up to 32.99" (838mm) of snow.Daylight
The month with the shortest days in Cornell, Wisconsin, is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 4:23 pm. On the last day of December, in Cornell, sunrise is at 7:43 am and sunset at 4:32 pm CST.
Sunshine
The average sunshine in December in Cornell is 2.9h.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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 1 during December translates into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cornell, WI
- Average high temperature in December: 24.3°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in December: 14°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).
Average pressure in December
Cornell, WI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Cornell, WI
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Cornell, 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 (76%).
Average rainfall in December
Cornell, WI
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Cornell, WI
- Average rainfall days in December: 4.9 days
The months with the highest number of rainy days are May and June (17.6 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Cornell, WI
- Average snowfall in December: 6.46"
The month with the highest snowfall is February (7.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cornell, WI
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cornell, WI
- Average daylight in December: 8h and 48min
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 54min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in December
Cornell, WI
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in December
Cornell, WI
- Average UV index in December: 1
The months with the highest UV index are May, 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
Cornell, WI
- Average cloud cover in December: 70
The months with the most cloud cover are January and February (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Cornell, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
