January weather forecast
Machesney Park, IL

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Weather in January

January, the same as December, in Machesney Park, Illinois, is another subzero cold winter month, with temperature in the range of an average high of 25.5°F (-3.6°C) and an average low of 13.5°F (-10.3°C).

Temperature

The coldest temperatures occur during January, when averages reach a peak of 25.5°F (-3.6°C) and a low of 13.5°F (-10.3°C).

Humidity

January is the most humid month, with an average relative humidity of 86%.

Rainfall

In Machesney Park, Illinois, during January, the rain falls for 3.8 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Machesney Park, during the entire year, the rain falls for 123.8 days and collects up to 14.49" (368mm) of precipitation.

Snowfall

Months with snowfall in Machesney Park are January through April, October through December. January is the month with the most snowfall. Snow falls for 10.3 days and accumulates 1.93" (49mm) 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 7:25 am and sunset at 4:34 pm. On the last day of January, in Machesney Park, sunrise is at 7:10 am and sunset at 5:08 pm CST.

Sunshine

January and February, with an average of 3.6h of sunshine, are months with the least sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During January, 1 as the daily maximum UV index converts into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 31, 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, noted for its average high-temperature of 25.5°F (-3.6°C) and an average low-temperature of 13.5°F (-10.3°C), is considered the coldest month.

How cold is January?

The average high-temperature and low-temperature during January are 25.5°F (-3.6°C) and 13.5°F (-10.3°C) respectively.

What is the most humid month in Machesney Park?

With an average relative humidity of 86%, January is the most humid month.

What is the average humidity in January?

In January, the average relative humidity is 86%.

How many days does it rain in January?

In Machesney Park, in January, during 3.8 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 10.3 days and accumulates 1.93" (49mm) of snow.

How much does it snow in January?

In January, it is snowing for 10.3 days. Throughout January, 1.93" (49mm) of snow is accumulated.

What is the average length of the day in January in Machesney Park?

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 7:25 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:08 pm CST.

What is the month with the least sunshine?

The months with the least sunshine are January and February, with an average of 3.6h of sunshine.

How many hours of sunshine does Machesney Park have in January?

The average sunshine duration in January is 3.6h.

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 intensity in January?

In January, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe 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
Machesney Park, IL

Average temperature in January - Machesney Park, IL
  • Average high temperature in January: 25.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in January: 13.5°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in January
Machesney Park, IL

Average pressure in January - Machesney Park, IL
  • Average pressure in January: 30.11"Hg

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Machesney Park, IL

Average wind speed in January - Machesney Park, IL
  • Average wind speed in January: 9.6mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in January
Machesney Park, IL

Average humidity in January - Machesney Park, IL
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).

Average rainfall in January
Machesney Park, IL

Average rainfall in January - Machesney Park, IL
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is June (2.2").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in January
Machesney Park, IL

Average rainfall days in January - Machesney Park, IL
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in January
Machesney Park, IL

Average snowfall in January - Machesney Park, IL
  • Average snowfall in January: 1.93"

The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Machesney Park, IL

Average snowfall days in January - Machesney Park, IL
  • Average snowfall days in January: 10.3 days

The month with the highest number of snowfall days is January (10.3 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
Machesney Park, IL

Average daylight in January / Average sunshine in January - Machesney Park, 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 month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).

Average sunshine days in January
Machesney Park, IL

Average sunshine days in January - Machesney Park, IL
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in January
Machesney Park, IL

Average UV index in January - Machesney Park, IL
  • Average UV index in January: 1

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

Average cloud cover in January
Machesney Park, IL

Average cloud cover in January - Machesney Park, IL
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in January
Machesney Park, IL

Average visibility in January - Machesney Park, IL
  • Average visibility in January: 5mi

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

Machesney Park, Illinois, USA

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