Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, with its high-temperature average of 28.8°F (-1.8°C) and a low-temperature average of 17.1°F (-8.3°C), is the coldest month.Humidity
January and February, with an average relative humidity of 82%, are the most humid months.Rainfall
In Clarendon Hills, in January, it is raining for 4.3 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Clarendon Hills, there are 118.5 rainfall days, and 13.74" (349mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Clarendon Hills, in January, snow falls for 9.7 days, with typically accumulated 1.81" (46mm) of snow. Throughout the year, in Clarendon Hills, there are 34.9 snowfall days, and 7.2" (183mm) of snow is accumulated.Daylight
In Clarendon Hills, the average length of the day in January is 9h and 33min.On the first day of January in Clarendon Hills, sunrise is at 7:19 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:05 pm CST.
Sunshine
January has the least sunshine of the year in Clarendon Hills, with an average of 3.7h of sunshine.UV index
The month with the lowest UV index in Clarendon Hills is January, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 1 in January translates into these instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Clarendon Hills?
How cold is January in Clarendon Hills?
What are the most humid months in Clarendon Hills?
What is the average humidity in January in Clarendon Hills?
How many days does it rain in January in Clarendon Hills?
How much does it snow in Clarendon Hills in January?
How many hours of daylight does Clarendon Hills have in January?
When is the sunrise / sunset in January in Clarendon Hills?
What is the month with the least sunshine in Clarendon Hills?
How many hours of sunshine does Clarendon Hills have in January?
When is the lowest UV index in Clarendon Hills?
What is the UV index intensity in January in Clarendon Hills?
Average temperature in January
Clarendon Hills, IL
- Average high temperature in January: 28.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in January: 17.1°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in January
Clarendon Hills, IL
- Average pressure in January: 30.11"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 January
Clarendon Hills, IL
- Average wind speed in January: 9.7mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in January
Clarendon Hills, IL
- Average humidity in January: 82%
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 January
Clarendon Hills, IL
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is December (0.63").
Average rainfall days in January
Clarendon Hills, IL
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in January
Clarendon Hills, IL
- Average snowfall in January: 1.81"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Clarendon Hills, IL
- Average snowfall days in January: 9.7 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Clarendon Hills, IL
- Average daylight in January: 9h and 4min
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 January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Clarendon Hills, IL
- Average sunshine days in January: 19.7 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in January
Clarendon Hills, IL
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Clarendon Hills, IL
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Clarendon Hills, IL
- Average visibility in January: 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).
Clarendon Hills, Illinois, USA
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