January weather forecast
Bartelso, IL

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Weather in January

January, the same as December, is a wintry winter month in Bartelso, Illinois, with an average temperature fluctuating between 37.2°F (2.9°C) and 24.3°F (-4.3°C).

Temperature

January is Bartelso's coldest month, registering average high temperatures of 37.2°F (2.9°C) and lows of 24.3°F (-4.3°C).

Humidity

The average relative humidity in January is 76%.

Rainfall

In Bartelso, Illinois, during January, the rain falls for 9.1 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 157.2 rainfall days, and 36.18" (919mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. The month with the most snowfall is January, when snow falls for 7.5 days and typically aggregates up to 2.4" (61mm) of snow.

Daylight

In Bartelso, the average length of the day in January is 9h and 50min.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:18 pm CST.

Sunshine

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

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 minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 2 suggests this advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January stands out as Bartelso's coldest month, with an average high-temperature of 37.2°F (2.9°C) and a low-temperature of 24.3°F (-4.3°C).

How cold is it in January?

During January, Bartelso experiences an average high-temperature of 37.2°F (2.9°C) and a low-temperature of 24.3°F (-4.3°C).

What is the average humidity in January?

In January, the average relative humidity is 76%.

How many days does it rain in January?

In January, in Bartelso, the rain falls for 9.1 days. Throughout January, 2.44" (62mm) of precipitation is accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 7.5 days and accumulates 2.4" (61mm) of snow.

How many days does it snow in January?

In Bartelso, during January, snow falls for 7.5 days and regularly aggregates up to 2.4" (61mm) of snow.

How many hours of daylight does Bartelso have in January?

In Bartelso, the average day length in January is 9h and 50min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:15 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:18 pm CST.

What is the month with the least sunshine?

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

How many hours of sunshine does Bartelso have in January?

The average sunshine duration in January is 4.5h.

When is the lowest UV index?

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

What is the UV index intensity in January?

The average daily maximum UV index in January 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
Bartelso, IL

Average temperature in January - Bartelso, IL
  • Average high temperature in January: 37.2°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in January
Bartelso, IL

Average pressure in January - Bartelso, 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
Bartelso, IL

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

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

Average humidity in January
Bartelso, IL

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

The months with the highest relative humidity are July and August (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Bartelso, IL

Average rainfall in January - Bartelso, IL
  • Average rainfall in January: 2.44"

The wettest month (with the highest rainfall) is June (4.37").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in January
Bartelso, IL

Average rainfall days in January - Bartelso, IL
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in January
Bartelso, IL

Average snowfall in January - Bartelso, IL
  • Average snowfall in January: 2.4"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Bartelso, IL

Average snowfall days in January - Bartelso, IL
  • Average snowfall days in January: 7.5 days

The month with the highest number of snowfall days is January (7.5 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
Bartelso, IL

Average daylight in January / Average sunshine in January - Bartelso, 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 30min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in January
Bartelso, IL

Average sunshine days in January - Bartelso, IL
  • Average sunshine days in January: 16.1 days

The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (10.5 days).

Average UV index in January
Bartelso, IL

Average UV index in January - Bartelso, 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
Bartelso, IL

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

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in January
Bartelso, IL

Average visibility in January - Bartelso, 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).

Bartelso, Illinois, USA

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