January weather forecastChatsworth, IL
January
Weather in January
January, the same as December, in Chatsworth, Illinois, is a freezing cold winter month, with temperature in the range of an average low of 18.5°F (-7.5°C) and an average high of 30.6°F (-0.8°C).Temperature
In Chatsworth, Illinois, January records the lowest average temperatures, peaking at 30.6°F (-0.8°C) and reaching a low of 18.5°F (-7.5°C).Humidity
The average relative humidity in January is 82%.Rainfall
January is the month with the least rainfall. Rain falls for 5 days and accumulates 0.79" (20mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 10.6 days and typically aggregates up to 2.09" (53mm) of snow.Daylight
The average length of the day in January is 9h and 39min.On the first day of the month, sunrise is at 7:17 am and sunset at 4:36 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:08 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.8h of sunshine.UV index
In Chatsworth, Illinois, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 2 in January transforms into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Chatsworth, IL
- Average high temperature in January: 30.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in January: 18.5°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 (18.5°F).
Average pressure in January
Chatsworth, IL
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Chatsworth, IL
- Average wind speed in January: 10.8mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Chatsworth, IL
- Average humidity in January: 82%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Chatsworth, IL
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in January
Chatsworth, IL
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (5 days).
Average snowfall in January
Chatsworth, IL
- Average snowfall in January: 2.09"
The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Chatsworth, 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
Chatsworth, IL
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 3h and 48min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Chatsworth, IL
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in January
Chatsworth, 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
Chatsworth, IL
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in January
Chatsworth, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
