January weather forecast
Wonder Lake, IL

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Weather in January

January, like December, is another subzero cold winter month in Wonder Lake, Illinois, with an average temperature fluctuating between 26.6°F (-3°C) and 14.9°F (-9.5°C).

Temperature

January, marked by an average high-temperature of 26.6°F (-3°C) and a low-temperature of 14.9°F (-9.5°C), is the coldest month.

Humidity

January and February, with an average relative humidity of 85%, are the most humid months.

Rainfall

In January, in Wonder Lake, the rain falls for 5.6 days. Throughout January, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 152.4 rainfall days, and 28.07" (713mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 13.3 days and accumulates 5.16" (131mm) of snow.

Daylight

The average length of the day in January is 9h and 30min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:05 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.7h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 1 in January interprets into the following advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

In Wonder Lake, January is known for its average lowest temperatures, reaching a high of 26.6°F (-3°C) and a low of 14.9°F (-9.5°C).

How cold is January?

The average high-temperature, in January, in Wonder Lake, is 26.6°F (-3°C), while the average low-temperature is 14.9°F (-9.5°C).

What are the most humid months?

January and February, with an average relative humidity of 85%, are most humid months.

What is the average humidity in January?

In Wonder Lake, the average relative humidity in January is 85%.

How much does it rain in Wonder Lake in January?

In January, the rain falls for 5.6 days. Throughout January, 1.54" (39mm) of precipitation is accumulated.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 13.3 days and typically aggregates up to 5.16" (131mm) of snow.

How many days does it snow in January?

In Wonder Lake, in January, during 13.3 snowfall days, 5.16" (131mm) of snow is typically accumulated.

How many hours of daylight does Wonder Lake have in January?

In Wonder Lake, the average day length in January is 9h and 30min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:22 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:05 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.7h of sunshine.

How long on average sun shines in January?

In Wonder Lake, the average sunshine duration in January is 3.7h.

When is the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in January?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Wonder Lake, IL

Average temperature in January - Wonder Lake, IL
  • Average high temperature in January: 26.6°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in January: 14.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

Average pressure in January
Wonder Lake, IL

Average pressure in January - Wonder Lake, IL
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Wonder Lake, IL

Average wind speed in January - Wonder Lake, IL
  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in January
Wonder Lake, IL

Average humidity in January - Wonder Lake, IL
  • Average humidity in January: 85%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

Average rainfall in January
Wonder Lake, IL

Average rainfall in January - Wonder Lake, IL
  • Average rainfall in January: 1.54"

The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").

Average rainfall days in January
Wonder Lake, IL

Average rainfall days in January - Wonder Lake, IL
  • Average rainfall days in January: 5.6 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in January
Wonder Lake, IL

Average snowfall in January - Wonder Lake, IL
  • Average snowfall in January: 5.16"

The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Wonder Lake, IL

Average snowfall days in January - Wonder Lake, IL
  • Average snowfall days in January: 13.3 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Wonder Lake, IL

Average daylight in January / Average sunshine in January - Wonder Lake, IL
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in January
Wonder Lake, IL

Average sunshine days in January - Wonder Lake, IL
  • Average sunshine days in January: 13.7 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).

Average UV index in January
Wonder Lake, IL

Average UV index in January - Wonder Lake, IL
  • Average UV index in January: 1

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Wonder Lake, IL

Average cloud cover in January - Wonder Lake, IL
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).

Average visibility in January
Wonder Lake, IL

Average visibility in January - Wonder Lake, IL
  • Average visibility in January: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

Wonder Lake, Illinois, USA

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