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 onset of December entails a temperature shift, as the average high-temperature decreases from a frosty 46.8°F (8.2°C) in November to a wintry 34.7°F (1.5°C). Sheridan records an average temperature drop to a freezing cold 24.8°F (-4°C) in December.Humidity
In Sheridan, the average relative humidity in December is 82%.Rainfall
In Sheridan, during December, the rain falls for 4.7 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Sheridan, during the entire year, the rain falls for 97.4 days and collects up to 8.07" (205mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 4.8 days. Throughout December, 0.31" (8mm) of snow is accumulated. Throughout the year, there are 26.1 snowfall days, and 3.54" (90mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:02 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:34 pm CST.
Sunshine
The average sunshine in December is 4.2h.UV index
The months with the lowest UV index in Sheridan are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 1 in December leads to these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Sheridan in December?
What is the average humidity in December in Sheridan?
How many days does it rain in December in Sheridan?
How many days does it snow in December in Sheridan?
What is the month with the shortest days in Sheridan?
What is the average length of the day in December in Sheridan?
When is the sunrise / sunset in December in Sheridan?
How long on average sun shines in December in Sheridan?
What is the month with the lowest UV index in Sheridan?
What is the UV index reading in December in Sheridan?
Average temperature in December
Sheridan, IL
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 24.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Sheridan, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Sheridan, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Sheridan, IL
- Average humidity in December: 82%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Sheridan, IL
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is November (0.35").
Average rainfall days in December
Sheridan, IL
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).
Average snowfall in December
Sheridan, IL
- Average snowfall in December: 0.31"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sheridan, IL
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sheridan, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Sheridan, IL
- Average sunshine days in December: 23 days
The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in December
Sheridan, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Sheridan, IL
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Sheridan, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Sheridan, Illinois, USA
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