February weather forecast
Joliet, IL

Share
A unique shot of cars, trees, and buildings along a street in the town of Joliet, Illinois
A unique shot of cars, trees, and buildings along a street in the town of Joliet, Illinois

Weather in February

The transition to February doesn't denote a significant departure from the winter chill, but a slight increase in temperature is noticeable. February weather reveals average high temperature of 33.4°F (0.8°C), slightly higher than January’s 29.3°F (-1.5°C), yet its 3.7" (94mm) of snowfall is generally lesser. Longer periods of daylight start to unfold and the relatively lower cloud percentage likewise permits more sunlight. Nonetheless, the windy weather prevails and visibility conditions can still be challenging due to moderate fog and mist.

Temperature

Joliet's average high-temperature in February is a cold 33.4°F (0.8°C), indicating a subtle variation from January. In Joliet, the expected average low-temperature for February is a freezing cold 20.7°F (-6.3°C).

Humidity

The most humid month is February, with an average relative humidity of 83%.

Rainfall

February is the month with the least rainfall. Rain falls for 5.7 days and accumulates 1.61" (41mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Joliet, in February, snow falls for 9.5 days, with typically accumulated 3.7" (94mm) of snow. In Joliet, during the entire year, snow falls for 38.2 days and aggregates up to 14.61" (371mm) of snow.

Daylight

The average length of the day in February is 10h and 38min.
On the first day of February, sunrise is at 7:04 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 5:42 pm CST.

Sunshine

In Joliet, the average sunshine in February is 3.9h.

UV index

The average daily maximum UV index in February is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In February, the maximum UV index of 2 transforms into these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in February?

In Joliet, 33.4°F (0.8°C) is the average high-temperature and 20.7°F (-6.3°C) is the average low-temperature during February.

What is the most humid month?

The most humid month in Joliet is February, with an average relative humidity of 83%.

What is the average humidity in February?

In Joliet, the average relative humidity in February is 83%.

What is the driest month?

February is the month with the least rainfall. Rain falls for 5.7 days and accumulates 1.61" (41mm) of precipitation.

How much does it rain in February?

In Joliet, during February, the rain falls for 5.7 days and regularly aggregates up to 1.61" (41mm) of precipitation.

How many days does it snow in February?

In February, it is snowing for 9.5 days. Throughout February, 3.7" (94mm) of snow is accumulated.

What is the average length of the day in February?

In February, the average day length is 10h and 38min.

When is the sunrise / sunset in February?

On the first day of February in Joliet, sunrise is at 7:04 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 5:42 pm CST.

How long on average sun shines in February?

In Joliet, the average sunshine duration in February is 3.9h.

What is the UV index intensity in February?

In Joliet, Illinois, the average daily maximum UV index in February is 2. A UV Index reading of 2, and below, represents a low health risk 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 February
Joliet, IL

Average temperature in February - Joliet, IL
  • Average high temperature in February: 33.4°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in February: 20.7°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in February
Joliet, IL

Average pressure in February - Joliet, IL
  • Average pressure in February: 30.1"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in February
Joliet, IL

Average wind speed in February - Joliet, IL
  • Average wind speed in February: 9.4mph

The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in February
Joliet, IL

Average humidity in February - Joliet, IL
  • Average humidity in February: 83%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in February
Joliet, IL

Average rainfall in February - Joliet, IL
  • Average rainfall in February: 1.61"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.61").

Average rainfall days in February
Joliet, IL

Average rainfall days in February - Joliet, IL
  • Average rainfall days in February: 5.7 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (5.7 days).

Average snowfall in February
Joliet, IL

Average snowfall in February - Joliet, IL
  • Average snowfall in February: 3.7"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in February
Joliet, IL

Average snowfall days in February - Joliet, IL
  • Average snowfall days in February: 9.5 days

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in February /
Average sunshine in February
Joliet, IL

Average daylight in February / Average sunshine in February - Joliet, IL
  • Average daylight in February: 10h and 4min

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

  • Average sunshine in February: 3h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in February
Joliet, IL

Average sunshine days in February - Joliet, IL
  • Average sunshine days in February: 13.8 days

The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in February
Joliet, IL

Average UV index in February - Joliet, IL
  • Average UV index in February: 2

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

Average cloud cover in February
Joliet, IL

Average cloud cover in February - Joliet, IL
  • Average cloud cover in February: 59

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

Average visibility in February
Joliet, IL

Average visibility in February - Joliet, IL
  • Average visibility in February: 5mi

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

Joliet, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location