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
With December's arrival, Divernon sees a decrease in average high-temperatures, moving from a cool 50.9°F (10.5°C) in November to a cold 39.4°F (4.1°C). Divernon encounters an average low-temperature of 28.2°F (-2.1°C) during December nights.Humidity
The average relative humidity in December is 78%.Rainfall
February and December are months with the least rain when the rain falls for 7.5 days and typically aggregates up to 1.26" (32mm) of rain.Snowfall
Months with snowfall are January through April, November and December. In December, in Divernon, it is snowing for 6.1 days. Throughout December, 1.34" (34mm) of snow is accumulated. Throughout the year, in Divernon, there are 26.5 snowfall days, and 6.5" (165mm) of snow is accumulated.Daylight
December has the shortest days of the year in Divernon, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:44 pm CST.
Sunshine
The average sunshine in December in Divernon, Illinois, is 4.7h.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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Divernon?
What is the average humidity in December in Divernon?
What is the driest month in Divernon?
How many days does it rain in December in Divernon?
How many days does it snow in December in Divernon?
What is the month with the shortest days in Divernon?
How many hours of daylight does Divernon have in December?
What time are sunrise and sunset in December in Divernon?
How long on average sun shines in December in Divernon?
What are the months with the lowest UV index in Divernon?
How high is the UV index in December in Divernon?
Average temperature in December
Divernon, IL
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in December
Divernon, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Divernon, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in December
Divernon, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Divernon, IL
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are February and December (1.26").
Average rainfall days in December
Divernon, IL
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in December
Divernon, IL
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Divernon, IL
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (8 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
Divernon, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Divernon, IL
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Divernon, 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
Divernon, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Divernon, 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).
Divernon, Illinois, USA
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