December weather forecastUrsa, IL
December
Weather in December
The first month of the winter, December, is still a cold month in Ursa, Illinois, with an average temperature varying between 38.7°F (3.7°C) and 26.6°F (-3°C).Temperature
Ursa's progression into December includes a drop in the average high-temperature, from a cool 50.4°F (10.2°C) in November to an icy 38.7°F (3.7°C). December nights cool down to an average low-temperature of 26.6°F (-3°C).Humidity
In Ursa, the average relative humidity in December is 77%.Rainfall
In Ursa, Illinois, in December, it is raining for 6.5 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 137.5 rainfall days, and 27.68" (703mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Ursa, during December, snow falls for 5.3 days and regularly aggregates up to 2.05" (52mm) of snow. In Ursa, during the entire year, snow falls for 28.4 days and aggregates up to 12.44" (316mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:08 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:50 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ursa, IL
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Ursa, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Ursa, IL
- Average wind speed in December: 9.7mph
The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Ursa, IL
- Average humidity in December: 77%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Ursa, IL
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in December
Ursa, IL
- Average rainfall days in December: 6.5 days
The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Ursa, IL
- Average snowfall in December: 2.05"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ursa, IL
- Average snowfall days in December: 5.3 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ursa, IL
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Ursa, IL
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in December
Ursa, IL
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Ursa, IL
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Ursa, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
