January weather forecastChadwick, IL

January

Weather in January

January, the same as December, in Chadwick, Illinois, is another subzero cold winter month, with temperature in the range of an average high of 26.1°F (-3.3°C) and an average low of 13.5°F (-10.3°C).

Temperature

The coldest time of the year is January, with temperatures averaging a high of 26.1°F (-3.3°C) and a low of 13.5°F (-10.3°C).

Humidity

January is the most humid month, with an average relative humidity of 86%.

Rainfall

The months with the least rainfall are January and February Rain falls for 4.1 days and accumulates 0.67" (17mm) of rain.

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 2.48" (63mm) of snow.

Daylight

In Chadwick, the average length of the day in January is 9h and 32min.
On the first day of January, sunrise is at 7:27 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:12 pm CST.

Sunshine

January and February, with an average of 3.7h of sunshine, are months with the least 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: In January, the maximum UV index of 1 suggests this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.

Frequently asked questions

January, with its high-temperature average of 26.1°F (-3.3°C) and a low-temperature average of 13.5°F (-10.3°C), is the coldest month.

The high-temperature during January is 26.1°F (-3.3°C) and the low-temperature is 13.5°F (-10.3°C).

January is the most humid month, with an average relative humidity of 86%.

In January, the average relative humidity is 86%.

January and February are months with the least rain when the rain falls for 4.1 days and typically aggregates up to 0.67" (17mm) of rain.

In January, in Chadwick, the rain falls for 4.1 days. Throughout January, 0.67" (17mm) of precipitation is accumulated.

January is the month with the most snowfall. Snow falls for 10.6 days and accumulates 2.48" (63mm) of snow.

In January, it is snowing for 10.6 days. Throughout January, 2.48" (63mm) of snow is accumulated.

In January, the average day length is 9h and 32min.

On the first day of January, sunrise is at 7:27 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:12 pm CST.

The months with the least sunshine are January and February, with an average of 3.7h of sunshine.

In Chadwick, the average sunshine duration in January is 3.7h.

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

In January, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Chadwick, IL

  • Average high temperature in January: 26.1°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 (26.1°F).

  • Average low temperature in January: 13.5°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in January
Chadwick, 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 (29.91"Hg).

Average wind speed in January
Chadwick, IL

  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in January
Chadwick, IL

  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).

Average rainfall in January
Chadwick, IL

  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is May (2.52").
The driest months (with the least rainfall) are January and February (0.67").

Average rainfall days in January
Chadwick, IL

  • Average rainfall days in January: 4.1 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (3.9 days).

Average snowfall in January
Chadwick, IL

  • Average snowfall in January: 2.48"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Chadwick, 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
Chadwick, IL

  • Average daylight in January: 9h and 30min

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 42min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

Average sunshine days in January
Chadwick, IL

  • Average sunshine days in January: 18 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in January
Chadwick, IL

  • Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Chadwick, 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
Chadwick, IL

  • Average visibility in January: 5mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).