January weather forecast
Coalton, IL

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Weather in January

January, like December, in Coalton, Illinois, is an icy winter month, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 22.6°F (-5.2°C).

Temperature

January tends to be the coldest month, with temperatures averaging a daily high of 34.7°F (1.5°C) and a low of 22.6°F (-5.2°C).

Humidity

In January, the average relative humidity is 78%.

Rainfall

In Coalton, in January, it is raining for 7.9 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, there are 145.5 rainfall days, and 27.44" (697mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Coalton, in January, snow falls for 7.4 days, with typically accumulated 2.13" (54mm) of snow. Throughout the year, there are 23.9 snowfall days, and 8.58" (218mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 47min.
On the first day of January, sunrise is at 7:16 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:16 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 of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 2 in January transforms into this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Enhance your sun protection with tightly woven, yet airy clothing. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Coalton reaches its average lowest temperatures in January, measuring 34.7°F (1.5°C) at the peak and 22.6°F (-5.2°C) at the lowest.

How cold is it in January?

The high-temperature during January is 34.7°F (1.5°C) and the low-temperature is 22.6°F (-5.2°C).

What is the average humidity in January?

The average relative humidity in January is 78%.

How many days does it rain in January?

In Coalton, during January, the rain falls for 7.9 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How much does it snow in January?

In Coalton, in January, during 7.4 snowfall days, 2.13" (54mm) of snow is typically accumulated.

How many hours of daylight does Coalton have in January?

In January, the average day length in Coalton is 9h and 47min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:16 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:16 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.4h of sunshine.

How long on average sun shines in January?

In Coalton, the average sunshine duration in January is 4.4h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in January?

The average daily maximum UV index in January in Coalton is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Coalton, IL

Average temperature in January - Coalton, IL
  • Average high temperature in January: 34.7°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in January: 22.6°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in January
Coalton, IL

Average pressure in January - Coalton, IL
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Coalton, IL

Average wind speed in January - Coalton, IL
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in January
Coalton, IL

Average humidity in January - Coalton, IL
  • Average humidity in January: 78%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Coalton, IL

Average rainfall in January - Coalton, IL
  • Average rainfall in January: 1.73"

The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is February (1.5").

Average rainfall days in January
Coalton, IL

Average rainfall days in January - Coalton, IL
  • Average rainfall days in January: 7.9 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.4 days).

Average snowfall in January
Coalton, IL

Average snowfall in January - Coalton, IL
  • Average snowfall in January: 2.13"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Coalton, IL

Average snowfall days in January - Coalton, IL
  • Average snowfall days in January: 7.4 days

The month with the highest number of snowfall days is January (7.4 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
Coalton, IL

Average daylight in January / Average sunshine in January - Coalton, 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 month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in January
Coalton, IL

Average sunshine days in January - Coalton, IL
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in January
Coalton, IL

Average UV index in January - Coalton, 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
Coalton, IL

Average cloud cover in January - Coalton, IL
  • Average cloud cover in January: 53

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July and September (Cloud cover 29).

Average visibility in January
Coalton, IL

Average visibility in January - Coalton, IL
  • Average visibility in January: 6mi

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

Coalton, Illinois, USA

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