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
December brings a decrease in the average high-temperature, falling from November's frosty 46.4°F (8°C) to an icy 34.5°F (1.4°C). In the month of December, the average low-temperature usually rests at a subzero cold 24.3°F (-4.3°C).Humidity
In Earlville, the average relative humidity in December is 82%.Rainfall
In Earlville, in December, it is raining for 5 days, with typically 0.51" (13mm) of accumulated precipitation. In Earlville, during the entire year, the rain falls for 109.6 days and collects up to 10.31" (262mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Earlville. In Earlville, in December, during 5.9 snowfall days, 0.51" (13mm) of snow is typically accumulated. Throughout the year, there are 28.6 snowfall days, and 4.33" (110mm) of snow is accumulated.Daylight
The month with the shortest days in Earlville is December, with an average of 9h and 12min of daylight.On the first day of December in Earlville, Illinois, sunrise is at 7:03 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:35 pm CST.
Sunshine
In December, the average sunshine in Earlville is 4.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Earlville?
What is the average humidity in December in Earlville?
How many days does it rain in December in Earlville?
How much does it snow in Earlville in December?
What is the month with the shortest days in Earlville?
How many hours of daylight does Earlville have in December?
When are sunrise and sunset in December in Earlville?
How many hours of sunshine does Earlville have in December?
What are the months with the lowest UV index in Earlville?
How high is the UV index in December in Earlville?
Average temperature in December
Earlville, IL
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Earlville, 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
Earlville, IL
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Earlville, 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
Earlville, IL
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in December
Earlville, IL
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in December
Earlville, IL
- Average snowfall in December: 0.51"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Earlville, IL
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Earlville, 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 June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Earlville, IL
- Average sunshine days in December: 21.3 days
The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in December
Earlville, 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
Earlville, IL
- Average cloud cover in December: 57
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
Earlville, 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).
Earlville, Illinois, USA
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