Weather on November 20
Naperville, IL
55 Years of Data
Avg High
49°F
Avg Low
31°F
Warmest
1982
59°F avg
Coldest
2022
17°F avg
About This Date
November 20th in Naperville, IL typically brings chilly fall weather, with average highs around 49°F and lows near 31°F. Over 55 years of records, the warmest November 20th was in 1982 (59°F average), while the coldest was 2022 (17°F) — a 42°F range across recorded history. Precipitation has occurred on 31% of recorded November 20th dates, with snow falling 2% of the time (heaviest snowfall: 1.8"). The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for November 20th in Naperville, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 45° | 42° | 43° | — | — |
| 2024 | 63° | 36° | 49° | 0.05" | — |
| 2023 | 51° | 34° | 42° | — | — |
| 2022coldest | 24° | 10° | 17° | 0.03" | — |
| 2021 | 39° | 26° | 33° | — | — |
| 2020 | 65° | 48° | 56° | — | — |
| 2019 | 40° | 35° | 37° | 0.13" | — |
| 2018 | 35° | 24° | 30° | — | — |
| 2017 | 36° | 28° | 32° | — | — |
| 2016 | 38° | 21° | 29° | — | — |
| 2015 | 43° | 32° | 37° | — | — |
| 2014 | 32° | 17° | 25° | — | — |
| 2013 | 42° | 21° | 32° | — | — |
| 2012 | 58° | 39° | 48° | — | — |
| 2011 | 56° | 38° | 47° | — | — |
| 2010 | 52° | 25° | 38° | — | — |
| 2009 | 44° | 38° | 41° | 0.1" | — |
| 2008 | 46° | 28° | 37° | — | — |
| 2007 | 60° | 42° | 51° | — | — |
| 2006 | 46° | 23° | 35° | — | — |
| 2005 | 53° | 27° | 40° | — | — |
| 2004 | 55° | 44° | 50° | 0.36" | — |
| 2003 | 65° | 33° | 49° | — | — |
| 2002 | 53° | 33° | 43° | — | — |
| 2001 | 47° | 25° | 36° | — | — |
| 2000 | 40° | 22° | 31° | 0.08" | — |
| 1999 | 50° | 38° | 44° | — | — |
| 1998 | 42° | 24° | 33° | — | — |
| 1997 | 44° | 20° | 32° | — | — |
| 1996 | 34° | 21° | 27° | — | — |
| 1995 | 51° | 26° | 39° | — | — |
| 1994 | 54° | 45° | 49° | — | — |
| 1993 | 44° | 22° | 33° | 0.03" | — |
| 1992 | 64° | 39° | 52° | 0.56" | — |
| 1991 | 60° | 41° | 51° | 0.81" | — |
| 1990 | 58° | 30° | 44° | — | — |
| 1989 | 58° | 41° | 49° | — | — |
| 1988 | 43° | 36° | 39° | — | — |
| 1987 | 43° | 24° | 33° | — | — |
| 1986 | 36° | 31° | 33° | — | — |
| 1985 | 57° | 18° | 37° | 1.93" | — |
| 1984 | 40° | 17° | 28° | — | — |
| 1983 | 63° | 42° | 52° | 1.17" | — |
| 1982warmest | 63° | 55° | 59° | 0.25" | — |
| 1981 | 45° | 31° | 38° | 2.34" | 1.8" |
| 1980 | 50° | 26° | 38° | — | — |
| 1979 | 62° | 30° | 46° | 0.91" | — |
| 1978 | 34° | 23° | 28° | — | — |
| 1977 | 58° | 39° | 48° | 0.58" | — |
| 1976 | 45° | 15° | 30° | — | — |
| 1975 | 59° | 42° | 51° | 0.81" | — |
| 1974 | 53° | 35° | 44° | — | — |
| 1973 | 54° | 40° | 47° | — | — |
| 1972 | 44° | 32° | 38° | 0.28" | — |
| 1971 | 48° | 37° | 43° | — | — |
55 years of data from LISLE - MORTON ARBORETUM