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
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 46.2°F (7.9°C) to an icy 35.2°F (1.8°C). December nights document an average temperature reading of 26.4°F (-3.1°C).Humidity
In Palos Hills, Illinois, the average relative humidity in December is 80%.Rainfall
The month with the least rainfall in Palos Hills is December, when the rain falls for 7.4 days and typically collects 1.02" (26mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, in Palos Hills, Illinois, it is snowing for 9.4 days. Throughout December, 1.5" (38mm) of snow is accumulated. In Palos Hills, Illinois, during the entire year, snow falls for 42.4 days and aggregates up to 11.61" (295mm) of snow.Daylight
December has the shortest days of the year in Palos Hills, with an average of 9h and 12min of daylight.On the first day of December in Palos Hills, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:30 pm CST.
Sunshine
In December, the average sunshine is 4.2h.UV index
December is the month with the lowest UV index in Palos Hills, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Palos Hills in December?
What is the average humidity in December in Palos Hills?
What is the driest month in Palos Hills?
How many days does it rain in December in Palos Hills?
How much does it snow in Palos Hills in December?
What is the month with the shortest days in Palos Hills?
How many hours of daylight does Palos Hills have in December?
What time are sunrise and sunset in December in Palos Hills?
How many hours of sunshine does Palos Hills have in December?
What is the month with the lowest UV index in Palos Hills?
What is the UV index intensity in December in Palos Hills?
Average temperature in December
Palos Hills, IL
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Palos Hills, IL
- Average pressure in December: 30.09"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
Palos Hills, IL
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Palos Hills, IL
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Palos Hills, IL
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in December
Palos Hills, IL
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in December
Palos Hills, IL
- Average snowfall in December: 1.5"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Palos Hills, IL
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is January (11.8 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
Palos Hills, 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 12min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Palos Hills, IL
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Palos Hills, IL
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Palos Hills, 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 August (Cloud cover 28).
Average visibility in December
Palos Hills, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Palos Hills, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location