February weather forecast
Naperville, IL

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A covered bridge over a river along the famous Naperville Riverwalk in Naperville, Illinois
A covered bridge over a river along the famous Naperville Riverwalk in Naperville, Illinois

Weather in February

As temperatures slightly rise from January, Naperville experiences continued winter conditions in February. The city sees a slight increase in temperature with highs of 32.4°F (0.2°C) and lows of 19.9°F (-6.7°C) dominating. Amid the cold, the city displays its resilience and beauty. By the end of the month, the anticipation of spring begins to grow among the residents.

Temperature

As January turns into February, the average high-temperatures rest at a wintry 32.4°F (0.2°C), showing a minor variation from the prior month. The temperature lowers to an average of 19.9°F (-6.7°C) during February nights.

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 83%.

Rainfall

In Naperville, in February, during 4.4 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 132.2 rainfall days, and 16.22" (412mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Naperville, during February, snow falls for 9.1 days and regularly aggregates up to 1.69" (43mm) of snow. Throughout the year, there are 38.7 snowfall days, and 6.93" (176mm) of snow is accumulated.

Daylight

The average length of the day in February is 10h and 37min.
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

The average sunshine in February is 3.9h.

UV index

In Naperville, the average daily maximum UV index in February is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In February, the maximum UV index of 2 suggests this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is February?

During February, Naperville experiences an average high-temperature of 32.4°F (0.2°C) and a low-temperature of 19.9°F (-6.7°C).

What is the most humid month?

The months with the highest humidity are January and February, with an average relative humidity of 83%.

What is the average humidity in February?

In February, the average relative humidity is 83%.

How much does it rain in February?

In Naperville, during February, the rain falls for 4.4 days and regularly aggregates up to 0.79" (20mm) of precipitation.

How many days does it snow in February?

In February, it is snowing for 9.1 days. Throughout February, 1.69" (43mm) of snow is accumulated.

What is the average length of the day in February?

In February, the average day length is 10h and 37min.

When is the sunrise / sunset in February?

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.

How long on average sun shines in February?

In February, the average sunshine duration is 3.9h.

How high is the UV index in February?

In February, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes 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
Naperville, IL

Average temperature in February - Naperville, IL
  • Average high temperature in February: 32.4°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in February: 19.9°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in February
Naperville, IL

Average pressure in February - Naperville, IL
  • Average pressure in February: 30.1"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 February
Naperville, IL

Average wind speed in February - Naperville, IL
  • Average wind speed in February: 9.6mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in February
Naperville, IL

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

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

Average rainfall in February
Naperville, IL

Average rainfall in February - Naperville, IL
  • Average rainfall in February: 0.79"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in February
Naperville, IL

Average rainfall days in February - Naperville, IL
  • Average rainfall days in February: 4.4 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in February
Naperville, IL

Average snowfall in February - Naperville, IL
  • Average snowfall in February: 1.69"

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in February
Naperville, IL

Average snowfall days in February - Naperville, IL
  • Average snowfall days in February: 9.1 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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 12min).

  • Average sunshine in February: 3h and 5min

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 48min).

Average sunshine days in February
Naperville, IL

Average sunshine days in February - Naperville, IL
  • Average sunshine days in February: 15.7 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.2 days).

Average UV index in February
Naperville, IL

Average UV index in February - Naperville, IL
  • Average UV index in February: 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 and December (UV index 1).

Average cloud cover in February
Naperville, IL

Average cloud cover in February - Naperville, IL
  • Average cloud cover in February: 58

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 31).

Average visibility in February
Naperville, IL

Average visibility in February - Naperville, IL
  • Average visibility in February: 6mi

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

Naperville, Illinois, USA

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