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 tends to be the coldest month, with temperatures averaging a daily high of 27.9°F (-2.3°C) and a low of 16.2°F (-8.8°C).Humidity
The months with the highest humidity in West Chicago are January and February, with an average relative humidity of 83%.Rainfall
In January, the rain falls for 3.4 days. Throughout January, 0.43" (11mm) of precipitation is accumulated. Throughout the year, there are 101.9 rainfall days, and 8.58" (218mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall in West Chicago, Illinois. Snow falls for 7.6 days and accumulates 1.14" (29mm) of snow.Daylight
The average length of the day in January in West Chicago is 9h and 33min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:32 pm. On the last day of January, in West Chicago, sunrise is at 7:06 am and sunset at 5:06 pm CST.
Sunshine
The month with the least sunshine in West Chicago is January, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 1 during January translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. 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 West Chicago?
How cold is January in West Chicago?
What are the most humid months in West Chicago?
What is the average humidity in January in West Chicago?
How much does it rain in West Chicago in January?
What is the snowiest month in West Chicago?
How many days does it snow in January in West Chicago?
What is the average length of the day in January in West Chicago?
What time are sunrise and sunset in January in West Chicago?
What is the month with the least sunshine in West Chicago?
How long on average sun shines in January in West Chicago?
What is the month with the lowest UV index in West Chicago?
What is the UV index reading in January in West Chicago?
Average temperature in January
West Chicago, IL
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 16.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in January
West Chicago, 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
West Chicago, IL
- Average wind speed in January: 9.9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in January
West Chicago, 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
West Chicago, IL
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are November and December (0.39").
Average rainfall days in January
West Chicago, IL
- Average rainfall days in January: 3.4 days
The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in January
West Chicago, IL
- Average snowfall in January: 1.14"
The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
West Chicago, IL
- Average snowfall days in January: 7.6 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
West Chicago, 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 month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
West Chicago, IL
- Average sunshine days in January: 22.2 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in January
West Chicago, IL
- Average UV index in January: 1
The months with the highest UV index are June, 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
West Chicago, IL
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in January
West Chicago, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
West Chicago, Illinois, USA
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