Weather on October 1
Naperville, IL
55 Years of Data
Avg High
73°F
Avg Low
47°F
Warmest
1971
77°F avg
Coldest
2003
43°F avg
About This Date
October 1st in Naperville, IL typically brings pleasant fall weather, with average highs around 73°F and lows near 47°F — a 26°F daily swing. Over 55 years of records, the warmest October 1st was in 1971 (77°F average), while the coldest was 2003 (43°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 18% of October 1st dates historically, with the wettest October 1st recording 2.67" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for October 1st in Naperville, IL? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 55° | 70° | — | — |
| 2024 | 78° | 58° | 68° | — | — |
| 2023 | 81° | 52° | 66° | — | — |
| 2022 | 66° | 37° | 52° | — | — |
| 2021 | 85° | 53° | 69° | — | — |
| 2020 | 66° | 45° | 55° | — | — |
| 2019 | 86° | 67° | 76° | — | — |
| 2018 | 65° | 52° | 58° | — | — |
| 2017 | 69° | 41° | 55° | — | — |
| 2016 | 63° | 54° | 58° | 0.03" | — |
| 2015 | 62° | 46° | 54° | — | — |
| 2014 | 58° | 45° | 51° | — | — |
| 2013 | 75° | 42° | 59° | — | — |
| 2012 | 68° | 41° | 55° | — | — |
| 2011 | 67° | 40° | 53° | 0.03" | — |
| 2010 | 77° | 41° | 59° | — | — |
| 2009 | 58° | 42° | 50° | 1.75" | — |
| 2008 | 60° | 43° | 51° | — | — |
| 2007 | 84° | 60° | 72° | 1.24" | — |
| 2006 | 75° | 40° | 57° | 0.25" | — |
| 2005 | 78° | 47° | 62° | — | — |
| 2004 | 74° | 42° | 58° | — | — |
| 2003coldest | 54° | 32° | 43° | — | — |
| 2002 | 86° | 68° | 77° | — | — |
| 2001 | 80° | 45° | 62° | — | — |
| 2000 | 84° | 60° | 72° | — | — |
| 1999 | 72° | 37° | 54° | — | — |
| 1998 | 68° | 43° | 55° | 1.17" | — |
| 1997 | 69° | 47° | 58° | — | — |
| 1996 | 81° | 49° | 65° | — | — |
| 1995 | 78° | 59° | 69° | 0.53" | — |
| 1994 | 62° | 56° | 59° | — | — |
| 1993 | 68° | 54° | 61° | — | — |
| 1992 | 76° | 41° | 58° | — | — |
| 1991 | 81° | 46° | 63° | — | — |
| 1990 | 71° | 40° | 55° | — | — |
| 1989 | 81° | 47° | 64° | — | — |
| 1988 | 78° | 62° | 70° | — | — |
| 1987 | 73° | 36° | 54° | — | — |
| 1986 | 71° | 55° | 63° | — | — |
| 1985 | 54° | 37° | 45° | 0.03" | — |
| 1984 | — | 33° | — | — | — |
| 1983 | 83° | 45° | 64° | — | — |
| 1982 | 85° | 54° | 69° | — | — |
| 1981 | 83° | 50° | 66° | — | — |
| 1980 | 81° | 53° | 67° | — | — |
| 1979 | 76° | 40° | 58° | — | — |
| 1978 | 69° | 46° | 58° | — | — |
| 1977 | 64° | 52° | 58° | 2.67" | — |
| 1976 | 83° | 44° | 63° | — | — |
| 1975 | 70° | 41° | 55° | — | — |
| 1974 | 55° | 32° | 44° | — | — |
| 1973 | 69° | 53° | 61° | 0.25" | — |
| 1972 | 73° | 44° | 59° | — | — |
| 1971warmest | 90° | 64° | 77° | — | — |
55 years of data from WHEATON 3 SE