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
Ashkum observes a minor decrease in the average high-temperature with the arrival of December, falling from November's frosty 47.7°F (8.7°C) to a cold 36.5°F (2.5°C). In Ashkum, the average nighttime temperature during December is a freezing cold 26.1°F (-3.3°C).Humidity
In Ashkum, the average relative humidity in December is 81%.Rainfall
January, February and December are months with the least rain in Ashkum when the rain falls for 6.8 days and typically aggregates up to 1.06" (27mm) of rain.Snowfall
January through April, October through December are months with snowfall in Ashkum. In Ashkum, in December, during 7.7 snowfall days, 1.34" (34mm) of snow is typically accumulated. In Ashkum, during the entire year, snow falls for 35.3 days and aggregates up to 9.37" (238mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Ashkum.On the first day of the month, sunrise is at 6:57 am and sunset at 4:24 pm. On the last day of December, in Ashkum, Illinois, sunrise is at 7:16 am and sunset at 4:34 pm CST.
Sunshine
In December, the average sunshine is 4.3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 1 in December translates into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Ashkum in December?
What is the average humidity in December?
What is the driest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Ashkum have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Ashkum, IL
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Ashkum, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Ashkum, IL
- Average wind speed in December: 9.7mph
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
Ashkum, 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 (71%).
Average rainfall in December
Ashkum, IL
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January, February and December (1.06").
Average rainfall days in December
Ashkum, IL
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in December
Ashkum, IL
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ashkum, IL
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (10.8 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
Ashkum, 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 2min
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 42min).
Average sunshine days in December
Ashkum, IL
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Ashkum, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Ashkum, IL
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in December
Ashkum, 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).
Ashkum, Illinois, USA
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