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
With average high and low temperatures of 27.9°F (-2.3°C) and 16.5°F (-8.6°C) respectively, January is Vernon Hills's coldest month.Humidity
January and February, with an average relative humidity of 83%, are the most humid months in Vernon Hills.Rainfall
In Vernon Hills, in January, during 6.3 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, in Vernon Hills, there are 147.3 rainfall days, and 27.44" (697mm) of precipitation is accumulated.Snowfall
Months with snowfall in Vernon Hills are January through May, October through December. In Vernon Hills, in January, snow falls for 12.9 days, with typically accumulated 4.65" (118mm) of snow. Throughout the year, there are 48.2 snowfall days, and 18.86" (479mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 31min.On the first day of January in Vernon Hills, sunrise is at 7:20 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:04 pm CST.
Sunshine
With an average of 3.7h of sunshine, January has the least sunshine of the year.UV index
The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What month is the coldest in Vernon Hills?
How cold is it in Vernon Hills in January?
What is the most humid month in Vernon Hills?
What is the average humidity in January in Vernon Hills?
How much does it rain in Vernon Hills in January?
How many days does it snow in January in Vernon Hills?
How many hours of daylight does Vernon Hills have in January?
When is the sunrise / sunset in January in Vernon Hills?
What is the month with the least sunshine in Vernon Hills?
How many hours of sunshine does Vernon Hills have in January?
What is the UV index reading in January in Vernon Hills?
Average temperature in January
Vernon Hills, IL
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 16.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in January
Vernon Hills, IL
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Vernon Hills, IL
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Vernon Hills, IL
- Average humidity in January: 83%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Vernon Hills, IL
- Average rainfall in January: 1.34"
The wettest month (with the highest rainfall) is June (3.54").
The driest months (with the least rainfall) are November and December (1.3").
Average rainfall days in January
Vernon Hills, IL
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Vernon Hills, IL
- Average snowfall in January: 4.65"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Vernon Hills, IL
- Average snowfall days in January: 12.9 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Vernon Hills, IL
- Average daylight in January: 9h and 3min
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 months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Vernon Hills, IL
- Average sunshine days in January: 13 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (10 days).
Average UV index in January
Vernon Hills, IL
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Vernon Hills, IL
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in January
Vernon Hills, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Vernon Hills, Illinois, USA
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