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, known for its average high temperature of 29.7°F (-1.3°C) and an average low temperature of 17.8°F (-7.9°C), is the coldest month.Humidity
In January, the average relative humidity is 82%.Rainfall
In January, in Coal City, the rain falls for 5.8 days. Throughout January, 1.73" (44mm) of precipitation is accumulated. In Coal City, during the entire year, the rain falls for 160.4 days and collects up to 33.5" (851mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Coal City, in January, during 10.6 snowfall days, 3.74" (95mm) of snow is typically accumulated. Throughout the year, in Coal City, there are 38.7 snowfall days, and 15.39" (391mm) of snow is accumulated.Daylight
In Coal City, the average length of the day in January is 9h and 36min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:34 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:07 pm CST.
Sunshine
The month with the least sunshine in Coal City is January, with an average of 3.9h of sunshine.UV index
In Coal City, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In January, the UV index of 2 transforms into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the coldest time of year in Coal City?
How cold is January in Coal City?
What is the average humidity in January in Coal City?
How much does it rain in Coal City in January?
How many days does it snow in January in Coal City?
How many hours of daylight does Coal City have in January?
When are sunrise and sunset in January in Coal City?
What is the month with the least sunshine in Coal City?
How many hours of sunshine does Coal City have in January?
What is the UV index intensity in January in Coal City?
Average temperature in January
Coal City, IL
- Average high temperature in January: 29.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in January: 17.8°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in January
Coal City, IL
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Coal City, IL
- Average wind speed in January: 9.9mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Coal City, IL
- Average humidity in January: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Coal City, IL
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are February and November (1.69").
Average rainfall days in January
Coal City, IL
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in January
Coal City, IL
- Average snowfall in January: 3.74"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Coal City, IL
- Average snowfall days in January: 10.6 days
The month with the highest number of snowfall days is January (10.6 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
Coal City, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 3h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Coal City, IL
- Average sunshine days in January: 15.4 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in January
Coal City, IL
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Coal City, IL
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in January
Coal City, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are February, July and August (5mi).
Coal City, Illinois, USA
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