January weather forecast
Strawn, IL

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Weather in January

January, the same as December, in Strawn, Illinois, is a freezing cold winter month, with an average temperature varying between 18.5°F (-7.5°C) and 30.6°F (-0.8°C).

Temperature

With average high and low temperatures of 30.6°F (-0.8°C) and 18.5°F (-7.5°C) respectively, January is Strawn's coldest month.

Humidity

The average relative humidity in January in Strawn is 82%.

Rainfall

January is the month with the least rainfall. Rain falls for 5 days and accumulates 0.79" (20mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 10.6 days and accumulates 2.09" (53mm) of snow.

Daylight

The average length of the day in January is 9h and 40min.
On the first day of the month, sunrise is at 7:17 am and sunset at 4:36 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:09 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.8h of sunshine.

UV index

In Strawn, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January proves to be the coldest month, recording an average maximum temperature of 30.6°F (-0.8°C) and a minimum temperature of 18.5°F (-7.5°C).

How cold is January in Strawn?

In Strawn, in January, the average high-temperature is 30.6°F (-0.8°C), and the average low-temperature is 18.5°F (-7.5°C).

What is the average humidity in January?

The average relative humidity in January is 82%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5 days and typically collects 0.79" (20mm) of precipitation.

How many days does it rain in January?

In Strawn, Illinois, during January, the rain falls for 5 days and regularly aggregates up to 0.79" (20mm) of precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 10.6 days and accumulates 2.09" (53mm) of snow.

How many days does it snow in January?

In January, it is snowing for 10.6 days. Throughout January, 2.09" (53mm) of snow is accumulated.

How many hours of daylight does Strawn have in January?

The average day length in January is 9h and 40min.

When is the sunrise / sunset in January in Strawn?

In January, on the first day of the month, sunrise is at 7:17 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:09 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.8h of sunshine.

How many hours of sunshine does Strawn have in January?

In January, the average sunshine duration is 3.8h.

What is the UV index intensity in January?

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

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

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in January: 18.5°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in January
Strawn, IL

Average pressure in January - Strawn, 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 (29.92"Hg).

Average wind speed in January
Strawn, IL

Average wind speed in January - Strawn, IL
  • Average wind speed in January: 10.8mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in January
Strawn, IL

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

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Strawn, IL

Average rainfall in January - Strawn, IL
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in January
Strawn, IL

Average rainfall days in January - Strawn, IL
  • Average rainfall days in January: 5 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (5 days).

Average snowfall in January
Strawn, IL

Average snowfall in January - Strawn, IL
  • Average snowfall in January: 2.09"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Strawn, IL

Average snowfall days in January - Strawn, 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
Strawn, IL

Average daylight in January / Average sunshine in January - Strawn, 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 48min).

Average sunshine days in January
Strawn, IL

Average sunshine days in January - Strawn, IL
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in January
Strawn, IL

Average UV index in January - Strawn, 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
Strawn, IL

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

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in January
Strawn, IL

Average visibility in January - Strawn, 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).

Strawn, Illinois, USA

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