Weather on September 16
Naperville, IL
55 Years of Data
Avg High
75°F
Avg Low
52°F
Warmest
1994
80°F avg
Coldest
2011
45°F avg
About This Date
September 16th in Naperville, IL typically brings pleasant fall weather, with average highs around 75°F and lows near 52°F. Over 55 years of records, the warmest September 16th was in 1994 (80°F average), while the coldest was 2011 (45°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 25% of September 16th dates historically, with the wettest September 16th recording 2.46" of rain. The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
Planning for September 16th in Naperville, IL? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 55° | 70° | — | — |
| 2024 | 88° | 63° | 75° | — | — |
| 2023 | 75° | 46° | 61° | — | — |
| 2022 | 81° | 57° | 69° | — | — |
| 2021 | 79° | 48° | 63° | — | — |
| 2020 | 77° | 58° | 67° | — | — |
| 2019 | 79° | 63° | 71° | 0.36" | — |
| 2018 | 83° | 57° | 70° | — | — |
| 2017 | 86° | 61° | 73° | — | — |
| 2016 | 79° | 61° | 70° | — | — |
| 2015 | 83° | 54° | 68° | — | — |
| 2014 | 59° | 40° | 49° | 0.03" | — |
| 2013 | 63° | 48° | 55° | 1.19" | — |
| 2012 | 79° | 45° | 62° | — | — |
| 2011coldest | 52° | 39° | 45° | — | — |
| 2010 | 75° | 56° | 65° | 0.15" | — |
| 2009 | 73° | 43° | 58° | — | — |
| 2008 | 64° | 45° | 54° | 0.05" | — |
| 2007 | 62° | 37° | 50° | — | — |
| 2006 | 79° | 58° | 68° | — | — |
| 2005 | 68° | 60° | 64° | 1.19" | — |
| 2004 | 82° | 60° | 71° | 0.84" | — |
| 2003 | 83° | 48° | 65° | — | — |
| 2002 | 78° | 44° | 61° | — | — |
| 2001 | 76° | 45° | 60° | — | — |
| 2000 | 70° | 40° | 55° | — | — |
| 1999 | 72° | 43° | 57° | — | — |
| 1998 | 80° | 65° | 72° | 0.13" | — |
| 1997 | 87° | 64° | 76° | — | — |
| 1996 | 70° | 48° | 59° | — | — |
| 1995 | 87° | 48° | 68° | — | — |
| 1994warmest | 90° | 71° | 80° | — | — |
| 1993 | 61° | 50° | 55° | — | — |
| 1992 | 86° | 68° | 77° | — | — |
| 1991 | 88° | 69° | 78° | 0.28" | — |
| 1990 | 69° | 47° | 58° | 0.18" | — |
| 1989 | 66° | 48° | 57° | — | — |
| 1988 | 74° | 57° | 65° | — | — |
| 1987 | 79° | 65° | 72° | — | — |
| 1986 | 70° | 48° | 59° | — | — |
| 1985 | 78° | 44° | 61° | — | — |
| 1984 | 68° | 35° | 52° | 1.09" | — |
| 1983 | 70° | 52° | 61° | 1.09" | — |
| 1982 | 67° | 46° | 56° | — | — |
| 1981 | 68° | 49° | 58° | — | — |
| 1980 | 72° | 59° | 65° | — | — |
| 1979 | 77° | 42° | 60° | — | — |
| 1978 | 83° | 63° | 73° | — | — |
| 1977 | 70° | 60° | 65° | 2.46" | — |
| 1976 | 72° | 45° | 58° | — | — |
| 1975 | 71° | 50° | 61° | — | — |
| 1974 | 77° | 45° | 61° | — | — |
| 1973 | 65° | 50° | 57° | 0.13" | — |
| 1972 | 82° | 63° | 72° | — | — |
| 1971 | 69° | 45° | 57° | — | — |
55 years of data from LISLE - MORTON ARBORETUM