January weather forecast
Bethany, IL

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Weather in January

January, the same as December, is a wintry winter month in Bethany, Illinois, with an average temperature varying between 21.6°F (-5.8°C) and 33.6°F (0.9°C).

Temperature

The month of January, characterized by an average high of 33.6°F (0.9°C) and a low of 21.6°F (-5.8°C), is recognized as the coldest.

Humidity

The average relative humidity in January is 79%.

Rainfall

In January, the rain falls for 6.4 days. Throughout January, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 130.9 rainfall days, and 15.43" (392mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. January is the month with the most snowfall in Bethany. Snow falls for 6.4 days and accumulates 1.54" (39mm) of snow.

Daylight

The average length of the day in January is 9h and 45min.
On the first day of January, sunrise is at 7:15 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:13 pm CST.

Sunshine

With an average of 4.1h 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 health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 2 in January leads to these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Temperature readings reach their annual highs in January, averaging 33.6°F (0.9°C) and a minimum average of 21.6°F (-5.8°C).

How cold is January?

The high-temperature, in January, in Bethany, records 33.6°F (0.9°C), while the low-temperature is 21.6°F (-5.8°C).

What is the average humidity in January?

In January, the average relative humidity is 79%.

How much does it rain in January?

In Bethany, during January, the rain falls for 6.4 days and regularly aggregates up to 0.94" (24mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 6.4 days and typically aggregates up to 1.54" (39mm) of snow.

How many days does it snow in January?

In Bethany, in January, snow falls for 6.4 days, with typically accumulated 1.54" (39mm) of snow.

How many hours of daylight does Bethany have in January?

In Bethany, the average day length in January is 9h and 45min.

What time are sunrise and sunset in January in Bethany?

On the first day of January, sunrise is at 7:15 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:13 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.1h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 4.1h.

What are the months with the lowest UV index?

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

How high is the UV index in January?

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 Sun's UV rays.
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
Bethany, IL

Average temperature in January - Bethany, IL
  • Average high temperature in January: 33.6°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in January
Bethany, IL

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

Average wind speed in January
Bethany, IL

Average wind speed in January - Bethany, IL
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in January
Bethany, IL

Average humidity in January - Bethany, IL
  • Average humidity in January: 79%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Bethany, IL

Average rainfall in January - Bethany, IL
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is June (1.85").
The driest month (with the least rainfall) is February (0.71").

Average rainfall days in January
Bethany, IL

Average rainfall days in January - Bethany, IL
  • Average rainfall days in January: 6.4 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in January
Bethany, IL

Average snowfall in January - Bethany, IL
  • Average snowfall in January: 1.54"

The month with the highest snowfall is January (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Bethany, IL

Average snowfall days in January - Bethany, IL
  • Average snowfall days in January: 6.4 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Bethany, IL

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

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 24min).

  • Average sunshine in January: 4h and 1min

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 6min).

Average sunshine days in January
Bethany, IL

Average sunshine days in January - Bethany, IL
  • Average sunshine days in January: 19.8 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in January
Bethany, IL

Average UV index in January - Bethany, 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
Bethany, IL

Average cloud cover in January - Bethany, IL
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in January
Bethany, IL

Average visibility in January - Bethany, 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).

Bethany, Illinois, USA

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