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Naperville, Illinois, gets 36 inches of rain per year. The US average is 37. Snowfall is 33 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 109.

On average, there are 189 sunny days per year in Naperville, Illinois. The July high is around 86 degrees. The January low is 14. Our comfort index, which is based on humidity during the hot months, is a 43 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

  CLIMATENaperville, IllinoisUnited States
  Rainfall (in.)  36.336.5
  Snowfall (in.)  3325
  Precipitation Days  109100
  Sunny Days  189205
  Avg. July High  8686.5
  Avg. Jan. Low  14.120.5
  Comfort Index (higher=better)  4344
  UV Index  3.44.3
  Elevation ft.  6871,443
Soo Cold here.
I hate the witer's here. There are more cloudy days than sunny days. It is so bone chilling cold in the winter. Looking to move down... (read more)
A location of diversity
Having lived in the town of Naperville since 1989 it would be wrong to state that the climate is either too hot or too cold. Instead, Naperville is a city which... (read more)
re: Too Many Foreigners!! - 3/7/2009
Angela, What is wrong with you?!!! What did these groups of people do to you? First of all if you are refering to Indians that come form India, they are considered as... (read more)
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Lived in Chicago suburbs my whole life. Napervill
I grew up in the Chicago area suburbs and have lived in every area. Naperville has, by far been my favorite! Yeah, Illinois drivers are total asshats and you're going... (read more)
Nice City But With Attitude
Have lived in Naperville a long time, and love our quaint downtown and River Walk area (we even have a beach!), the proximity to Chicago, the multitude of in-town and... (read more)
Don't move here
It is not a nice place to live unless you love strip mall after strip mall and lots of traffic-especially SUV's- riding your bumper even though you're already 10 mph... (read more)
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