World Resorts USA Naperville Weather

Naperville weather in September

Weather in Naperville: September

Average day temperature: 75.3°F
Average night temperature: 62.0°F
Number of sunny days: 18 days
Day length: 11.8 - 13.1 hours
Number of rainy days: 2 days
Precipitation totals: 1.0 in.

Air temperature in September, °F

Show year:
2023
2022
2021

The highest day temperature during September of 2023 was 97°F. At the same time the lowest night temperature was 54°F. Day and night temperature averages during September were 77.6°F and 62.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Naperville in September is 1.0 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 7.6 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.8.

Best time for vacation in Naperville

Sunniest months:
September 18 days
August 16 days
June 15 days
Warmest months:
July 81.6 °F
August 81.5 °F
June 78.7 °F
Coldest months:
January 29.4 °F
February 32.7 °F
December 37.6 °F
Rainiest months:
May 4 days
June 3 days
October 3 days
Windiest months:
March 10.2 mph
April 9.9 mph
February 9.3 mph

Naperville on a weather map

Naperville
+72°F
E 6 mph
Feels like: +77°F
Precip.: 0%
Places in USA:
Name
°F
+54°F
+61°F
+73°F
+73°F
+90°F
+64°F
+86°F
+61°F
+84°F
+64°F
+57°F
+82°F
+84°F
+82°F
+72°F
24 Hours Forecast
Naperville
Local time: 19:46
May 18, saturday
2100
72°F
E
6 mph
May 19, sunday
0000
68°F
NE
6 mph
0300
66°F
E
5 mph
0600
64°F
S
8 mph
0900
66°F
SW
8 mph
1200
73°F
SW
6 mph
1500
77°F
W
6 mph
1800
73°F
W
8 mph
Units of measurement: °C / °F