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 is the coldest month, exhibiting average temperatures of 35.6°F (2°C) at the peak and 22.6°F (-5.2°C) at the base.Humidity
The average relative humidity in January in Wilsonville is 77%.Rainfall
In Wilsonville, in January, it is raining for 5.8 days, with typically 1.02" (26mm) of accumulated precipitation. In Wilsonville, Illinois, during the entire year, the rain falls for 121.4 days and collects up to 14.72" (374mm) of precipitation.Snowfall
Months with snowfall in Wilsonville are January through March, November and December. In Wilsonville, Illinois, in January, snow falls for 6.3 days, with typically accumulated 0.63" (16mm) of snow. In Wilsonville, during the entire year, snow falls for 19.8 days and aggregates up to 2.91" (74mm) of snow.Daylight
In January, the average length of the day in Wilsonville is 9h and 48min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:06 am and sunset at 5:18 pm CST.
Sunshine
With an average of 4.4h of sunshine, January has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 during January translates into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Wilsonville?
How cold is January in Wilsonville?
What is the average humidity in January in Wilsonville?
How many days does it rain in January in Wilsonville?
How much does it snow in Wilsonville in January?
What is the average length of the day in January in Wilsonville?
What time are sunrise and sunset in January in Wilsonville?
What is the month with the least sunshine in Wilsonville?
How many hours of sunshine does Wilsonville have in January?
What are the months with the lowest UV index in Wilsonville?
What is the UV index reading in January in Wilsonville?
Average temperature in January
Wilsonville, IL
- Average high temperature in January: 35.6°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in January: 22.6°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in January
Wilsonville, IL
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Wilsonville, IL
- Average wind speed in January: 10mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in January
Wilsonville, IL
- Average humidity in January: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Wilsonville, IL
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in January
Wilsonville, IL
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in January
Wilsonville, IL
- Average snowfall in January: 0.63"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Wilsonville, IL
- Average snowfall days in January: 6.3 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Wilsonville, IL
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Wilsonville, IL
- Average sunshine days in January: 20.9 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in January
Wilsonville, IL
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Wilsonville, IL
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in January
Wilsonville, 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).
Wilsonville, Illinois, USA
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