Weather on April 9
Naperville, IL
55 Years of Data
Avg High
56°F
Avg Low
33°F
Warmest
2001
62°F avg
Coldest
1997
23°F avg
About This Date
April 9th in Naperville, IL typically brings cool spring weather, with average highs around 56°F and lows near 33°F. Over 56 years of records, the warmest April 9th was in 2001 (62°F average), while the coldest was 1997 (23°F) — a 39°F range across recorded history. Precipitation has occurred on 39% of recorded April 9th dates, with snow falling 2% of the time (heaviest snowfall: 1.4"). The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for April 9th in Naperville, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 72° | 39° | 55° | — | — |
| 2025 | 42° | 20° | 31° | — | — |
| 2024 | 70° | 45° | 57° | — | — |
| 2023 | 62° | 29° | 45° | — | — |
| 2022 | 45° | 30° | 37° | 0.51" | — |
| 2021 | 61° | 50° | 55° | 0.94" | — |
| 2020 | 76° | 38° | 57° | 0.41" | — |
| 2019 | 74° | 39° | 56° | — | — |
| 2018 | 42° | 15° | 29° | 0.15" | 1.4" |
| 2017 | 67° | 32° | 49° | — | — |
| 2016 | 43° | 23° | 33° | — | — |
| 2015 | 53° | 42° | 48° | 1.27" | — |
| 2014 | 59° | 26° | 43° | — | — |
| 2013 | 68° | 40° | 54° | 0.56" | — |
| 2012 | 66° | 37° | 52° | — | — |
| 2011 | 50° | 41° | 46° | 0.05" | — |
| 2010 | 41° | 27° | 34° | — | — |
| 2009 | 56° | 25° | 40° | — | — |
| 2008 | 49° | 37° | 43° | 1.55" | — |
| 2007 | 40° | 28° | 34° | — | — |
| 2006 | 56° | 23° | 39° | — | — |
| 2005 | 71° | 39° | 55° | — | — |
| 2004 | 58° | 29° | 43° | — | — |
| 2003 | 46° | 28° | 37° | — | — |
| 2002 | 56° | 43° | 49° | 2.64" | — |
| 2001warmest | 80° | 45° | 62° | 0.2" | — |
| 2000 | 60° | 30° | 45° | — | — |
| 1999 | 58° | 41° | 49° | 3.02" | — |
| 1998 | 51° | 41° | 46° | 0.86" | — |
| 1997coldest | 36° | 11° | 23° | — | — |
| 1996 | 49° | 22° | 35° | — | — |
| 1995 | 48° | 33° | 41° | 2.67" | — |
| 1994 | 67° | 47° | 57° | — | — |
| 1993 | 60° | 43° | 51° | 1.24" | — |
| 1992 | 61° | 43° | 52° | — | — |
| 1991 | 74° | 43° | 58° | 4.29" | — |
| 1990 | 55° | 42° | 49° | — | — |
| 1989 | 43° | 24° | 33° | — | — |
| 1988 | 70° | 35° | 52° | — | — |
| 1987 | 74° | 25° | 49° | — | — |
| 1986 | 57° | 36° | 46° | — | — |
| 1985 | 45° | 22° | 33° | — | — |
| 1984 | 53° | 37° | 45° | 0.08" | — |
| 1983 | 47° | 36° | 41° | 3.1" | — |
| 1982 | 41° | 27° | 34° | — | — |
| 1981 | 66° | 38° | 52° | 0.79" | — |
| 1980 | 57° | 33° | 45° | 0.1" | — |
| 1979 | 39° | 30° | 35° | — | — |
| 1978 | 67° | 40° | 53° | 0.18" | — |
| 1977 | 62° | 23° | 43° | — | — |
| 1976 | 60° | 22° | 41° | — | — |
| 1975 | 40° | 32° | 36° | — | — |
| 1974 | 49° | 21° | 35° | 0.08" | — |
| 1973 | 43° | 33° | 38° | 2.62" | — |
| 1972 | 45° | 18° | 31° | — | — |
| 1971 | 74° | 47° | 60° | — | — |
56 years of data from WHEATON 3 SE