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 arrival of December corresponds with a temperature reduction, down from November's frosty 43.7°F (6.5°C) to a subzero cold 31.5°F (-0.3°C). Warren sees an average low-temperature of 21.2°F (-6°C) during December.Humidity
In Warren, the average relative humidity in December is 83%.Rainfall
In December, in Warren, the rain falls for 6.5 days. Throughout December, 1.14" (29mm) of precipitation is accumulated. Throughout the year, there are 140.7 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Warren. In Warren, in December, snow falls for 10.6 days, with typically accumulated 2.95" (75mm) of snow. Throughout the year, in Warren, there are 49.5 snowfall days, and 14.76" (375mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December in Warren, Illinois, sunrise is at 7:10 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:37 pm CST.
Sunshine
In December, the average sunshine in Warren, Illinois, is 3.9h.UV index
The months with the lowest UV index in Warren, Illinois, are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 1 in December translates into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
How cold is it in Warren in December?
What is the average humidity in December in Warren?
How much does it rain in Warren in December?
How many days does it snow in December in Warren?
What is the month with the shortest days in Warren?
What is the average length of the day in December in Warren?
When are sunrise and sunset in December in Warren?
How many hours of sunshine does Warren have in December?
When is the lowest UV index in Warren?
What is the UV index intensity in December in Warren?
Average temperature in December
Warren, IL
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in December
Warren, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Warren, IL
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
Warren, IL
- Average humidity in December: 83%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April, October and November (77%).
Average rainfall in December
Warren, IL
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Warren, IL
- Average rainfall days in December: 6.5 days
The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in December
Warren, IL
- Average snowfall in December: 2.95"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Warren, IL
- Average snowfall days in December: 10.6 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Warren, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Warren, IL
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in December
Warren, IL
- 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 and December (UV index 1).
Average cloud cover in December
Warren, IL
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in December
Warren, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Warren, Illinois, USA
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