January weather forecast
Sesser, IL

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Weather in January

January, the same as December, is an icy winter month in Sesser, Illinois, with an average temperature varying between 38.8°F (3.8°C) and 25.7°F (-3.5°C).

Temperature

In Sesser, January is the coldest month, with temperatures averaging a high of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C).

Humidity

In January, the average relative humidity is 76%.

Rainfall

In Sesser, in January, it is raining for 7.3 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 122.7 rainfall days, and 18.03" (458mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 4.5 days and typically aggregates up to 0.71" (18mm) of snow.

Daylight

In January, the average length of the day is 9h and 53min.
On the first day of January in Sesser, sunrise is at 7:12 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:17 pm CST.

Sunshine

With an average of 4.5h 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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The coldest period tends to be January, when average temperatures fluctuate between a high of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C).

Is January cold?

An average high-temperature, in January, in Sesser, is 38.8°F (3.8°C) and the average low-temperature is 25.7°F (-3.5°C).

What is the average humidity in January?

In Sesser, the average relative humidity in January is 76%.

How many days does it rain in January?

In January, the rain falls for 7.3 days. Throughout January, 1.06" (27mm) of precipitation is accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 4.5 days and accumulates 0.71" (18mm) of snow.

How much does it snow in January?

In Sesser, in January, snow falls for 4.5 days, with typically accumulated 0.71" (18mm) of snow.

How many hours of daylight does Sesser have in January?

In Sesser, the average day length in January is 9h and 53min.

When are sunrise and sunset in January in Sesser?

On the first day of January, sunrise is at 7:12 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:17 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4.5h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 4.5h.

When is 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.

What is the UV index reading in January?

In Sesser, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Sesser, IL

Average temperature in January - Sesser, IL
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in January: 25.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in January
Sesser, IL

Average pressure in January - Sesser, IL
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Sesser, IL

Average wind speed in January - Sesser, IL
  • Average wind speed in January: 9.8mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in January
Sesser, IL

Average humidity in January - Sesser, IL
  • Average humidity in January: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Sesser, IL

Average rainfall in January - Sesser, IL
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in January
Sesser, IL

Average rainfall days in January - Sesser, IL
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in January
Sesser, IL

Average snowfall in January - Sesser, IL
  • Average snowfall in January: 0.71"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Sesser, IL

Average snowfall days in January - Sesser, IL
  • Average snowfall days in January: 4.5 days

The month with the highest number of snowfall days is January (4.5 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
Sesser, IL

Average daylight in January / Average sunshine in January - Sesser, IL
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in January
Sesser, IL

Average sunshine days in January - Sesser, IL
  • Average sunshine days in January: 19.9 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in January
Sesser, IL

Average UV index in January - Sesser, IL
  • Average UV index in January: 2

The months with the highest UV index are May, 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
Sesser, IL

Average cloud cover in January - Sesser, IL
  • Average cloud cover in January: 51

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in January
Sesser, IL

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

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

Sesser, Illinois, USA

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