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
A decrease in the average high-temperature is observed during December, shifting from a frosty 47.8°F (8.8°C) in November to a cold 36.7°F (2.6°C). During the nights in December, Sheldon observes an average low-temperature of 26.6°F (-3°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 6.6 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Sheldon, there are 140.3 rainfall days, and 17.56" (446mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Sheldon, in December, during 8 snowfall days, 1.3" (33mm) of snow is typically accumulated. In Sheldon, during the entire year, snow falls for 36.9 days and aggregates up to 7.56" (192mm) of snow.Daylight
The month with the shortest days in Sheldon is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 6:55 am and sunset at 4:23 pm. On the last day of December, in Sheldon, sunrise is at 7:14 am and sunset at 4:32 pm CST.
Sunshine
The average sunshine in December in Sheldon is 4.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Sheldon. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is December in Sheldon?
What is the average humidity in December in Sheldon?
How much does it rain in Sheldon in December?
How much does it snow in Sheldon in December?
What is the month with the shortest days in Sheldon?
How many hours of daylight does Sheldon have in December?
When are sunrise and sunset in December in Sheldon?
How long on average sun shines in December in Sheldon?
When is the lowest UV index in Sheldon?
What is the UV index reading in December in Sheldon?
Average temperature in December
Sheldon, IL
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Sheldon, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Sheldon, IL
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Sheldon, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Sheldon, IL
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is May (2.64").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days in December
Sheldon, IL
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in December
Sheldon, IL
- Average snowfall in December: 1.3"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Sheldon, IL
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (10.3 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
Sheldon, IL
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Sheldon, IL
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Sheldon, 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
Sheldon, IL
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in December
Sheldon, 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).
Sheldon, Illinois, USA
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