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
Temperature readings reach their annual highs in January, averaging 27.5°F (-2.5°C) and a minimum average of 16.5°F (-8.6°C).Humidity
January and February, with an average relative humidity of 83%, are the most humid months in Round Lake, Illinois.Rainfall
In Round Lake, in January, during 5.4 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Round Lake, during the entire year, the rain falls for 142.3 days and collects up to 21.97" (558mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Round Lake. The month with the most snowfall in Round Lake is January, when snow falls for 13.7 days and typically aggregates up to 3.58" (91mm) of snow.Daylight
The average length of the day in January is 9h and 30min.On the first day of January, sunrise is at 7:21 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:07 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 months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 1 during January translates into the following guidance:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What are the coldest months in Round Lake?
How cold is January in Round Lake?
What are the most humid months in Round Lake?
What is the average humidity in January in Round Lake?
How many days does it rain in January in Round Lake?
When does it snow the most in Round Lake?
How much does it snow in Round Lake in January?
How many hours of daylight does Round Lake have in January?
What time are sunrise and sunset in January in Round Lake?
What is the month with the least sunshine in Round Lake?
How many hours of sunshine does Round Lake have in January?
What is the month with the lowest UV index in Round Lake?
What is the UV index intensity in January in Round Lake?
Average temperature in January
Round Lake, IL
- Average high temperature in January: 27.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in January: 16.5°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 (16.5°F).
Average pressure in January
Round Lake, IL
- Average pressure in January: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Round Lake, IL
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Round Lake, 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
Round Lake, IL
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in January
Round Lake, IL
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5 days).
Average snowfall in January
Round Lake, IL
- Average snowfall in January: 3.58"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Round Lake, IL
- Average snowfall days in January: 13.7 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Round Lake, 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 6min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Round Lake, IL
- Average sunshine days in January: 13.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in January
Round Lake, IL
- Average UV index in January: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Round Lake, 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, August and September (Cloud cover 30).
Average visibility in January
Round Lake, IL
- Average visibility in January: 5mi
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).
Round Lake, Illinois, USA
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