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 suggests a modest reduction in the average high-temperature, shifting from a chilly 46.9°F (8.3°C) in November to a wintry 35.6°F (2°C). During the nights in December, Country Club Hills experiences a consistent average temperature of 25.9°F (-3.4°C).Humidity
The average relative humidity in December is 81%.Rainfall
December is the month with the least rainfall. Rain falls for 7.9 days and accumulates 1.54" (39mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, in Country Club Hills, it is snowing for 9.1 days. Throughout December, 2.76" (70mm) of snow is accumulated. In Country Club Hills, Illinois, during the entire year, snow falls for 44.6 days and aggregates up to 16.46" (418mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Country Club Hills.On the first day of December, sunrise is at 6:58 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:31 pm CST.
Sunshine
In Country Club Hills, the average sunshine in December is 4h.UV index
The month with the lowest UV index in Country Club Hills is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 in December translates into these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
How cold is December in Country Club Hills?
What is the average humidity in December in Country Club Hills?
What is the driest month in Country Club Hills?
How many days does it rain in December in Country Club Hills?
How many days does it snow in December in Country Club Hills?
What is the month with the shortest days in Country Club Hills?
What is the average length of the day in December in Country Club Hills?
What time are sunrise and sunset in December in Country Club Hills?
How long on average sun shines in December in Country Club Hills?
When is the lowest UV index in Country Club Hills?
What is the UV index reading in December in Country Club Hills?
Average temperature in December
Country Club Hills, IL
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Country Club Hills, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Country Club Hills, IL
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Country Club Hills, IL
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Country Club Hills, IL
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in December
Country Club Hills, IL
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in December
Country Club Hills, IL
- Average snowfall in December: 2.76"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Country Club Hills, IL
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Country Club Hills, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Country Club Hills, IL
- Average sunshine days in December: 15 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in December
Country Club Hills, 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
Country Club Hills, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Country Club Hills, IL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Country Club Hills, Illinois, USA
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