January weather forecast
Coaler, IL

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Weather in January

January, like December, is another subzero cold winter month in Coaler, Illinois, with an average temperature ranging between min 18.7°F (-7.4°C) and max 30.6°F (-0.8°C).

Temperature

Coaler witnesses the coldest weather in January, with temperatures averaging a high of 30.6°F (-0.8°C) and a low of 18.7°F (-7.4°C).

Humidity

The average relative humidity in January is 82%.

Rainfall

In Coaler, Illinois, in January, it is raining for 6.2 days, with typically 1.02" (26mm) of accumulated precipitation. In Coaler, during the entire year, the rain falls for 136.7 days and collects up to 19.72" (501mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 10.5 days and accumulates 2.56" (65mm) of snow.

Daylight

In Coaler, Illinois, the average length of the day in January is 9h and 39min.
On the first day of January, sunrise is at 7:14 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:06 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.9h of sunshine.

UV index

In Coaler, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 2 in January translates into this advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

Coaler's January weather, with an average high temperature of 30.6°F (-0.8°C) and an average low temperature of 18.7°F (-7.4°C), tends to be the coldest of the year.

How cold is January?

Coaler in January has an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 18.7°F (-7.4°C).

What is the average humidity in January?

In January, the average relative humidity is 82%.

How many days does it rain in January?

In Coaler, during January, the rain falls for 6.2 days and regularly aggregates up to 1.02" (26mm) of precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 10.5 days and accumulates 2.56" (65mm) of snow.

How many days does it snow in January in Coaler?

In Coaler, in January, snow falls for 10.5 days, with typically accumulated 2.56" (65mm) of snow.

What is the average length of the day in January?

In Coaler, the average day length in January is 9h and 39min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:14 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:06 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.9h of sunshine.

How long on average sun shines in January?

In Coaler, the average sunshine duration in January is 3.9h.

What is the UV index reading in January in Coaler?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Coaler, IL

Average temperature in January - Coaler, IL
  • Average high temperature in January: 30.6°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in January: 18.7°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

Average pressure in January
Coaler, IL

Average pressure in January - Coaler, 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 (29.93"Hg).

Average wind speed in January
Coaler, IL

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

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in January
Coaler, IL

Average humidity in January - Coaler, IL
  • Average humidity in January: 82%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Coaler, IL

Average rainfall in January - Coaler, IL
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in January
Coaler, IL

Average rainfall days in January - Coaler, IL
  • Average rainfall days in January: 6.2 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in January
Coaler, IL

Average snowfall in January - Coaler, IL
  • Average snowfall in January: 2.56"

The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Coaler, IL

Average snowfall days in January - Coaler, IL
  • Average snowfall days in January: 10.5 days

The month with the highest number of snowfall days is January (10.5 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
Coaler, IL

Average daylight in January / Average sunshine in January - Coaler, IL
  • Average daylight in January: 9h and 4min

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 5min

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 54min).

Average sunshine days in January
Coaler, IL

Average sunshine days in January - Coaler, IL
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in January
Coaler, IL

Average UV index in January - Coaler, 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
Coaler, IL

Average cloud cover in January - Coaler, IL
  • Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in January
Coaler, IL

Average visibility in January - Coaler, 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).

Coaler, Illinois, USA

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