Weather on February 20
Naperville, IL
55 Years of Data
Avg High
42°F
Avg Low
20°F
Warmest
2017
49°F avg
Coldest
2015
-1°F avg
About This Date
February 20th in Naperville, IL typically brings chilly winter weather, with average highs around 42°F and lows near 20°F. Over 56 years of records, the warmest February 20th was in 2017 (49°F average), while the coldest was 2015 (-1°F) — a 50°F range across recorded history. Precipitation has occurred on 30% of recorded February 20th dates, with snow falling 14% of the time (heaviest snowfall: 2"). The last decade has been 6.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.2°F cooler on this date compared to 20-30 years ago.
Planning for February 20th in Naperville, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 64° | 28° | 46° | 0.13" | — |
| 2025 | 17° | 1° | 9° | — | — |
| 2024 | 50° | 16° | 33° | — | — |
| 2023 | 51° | 23° | 37° | — | — |
| 2022 | 28° | 8° | 18° | — | — |
| 2021 | 20° | -6° | 7° | — | — |
| 2020 | 30° | 8° | 19° | — | — |
| 2019 | 35° | 11° | 23° | 0.1" | 0.6" |
| 2018 | 59° | 38° | 48° | 4.9" | — |
| 2017warmest | 69° | 28° | 49° | — | — |
| 2016 | 63° | 26° | 44° | — | — |
| 2015coldest | 7° | -9° | -1° | — | — |
| 2014 | 46° | — | — | — | — |
| 2013 | 14° | 6° | 10° | 0.05" | 0.4" |
| 2012 | — | 14° | — | — | — |
| 2011 | 39° | 26° | 33° | 0.1" | — |
| 2010 | 44° | 14° | 29° | 0.05" | — |
| 2009 | 24° | 10° | 17° | — | — |
| 2008 | 15° | 3° | 9° | 0.08" | 0.3" |
| 2007 | 48° | 15° | 32° | — | — |
| 2006 | 33° | 12° | 23° | — | — |
| 2005 | 39° | 31° | 35° | 0.28" | 1" |
| 2004 | 44° | 36° | 40° | 0.18" | — |
| 2003 | 50° | 24° | 37° | — | — |
| 2002 | 53° | 39° | 46° | 0.94" | — |
| 2001 | 48° | 26° | 37° | — | — |
| 2000 | 37° | 21° | 29° | — | — |
| 1999 | 32° | 19° | 26° | — | — |
| 1998 | 45° | 34° | 39° | 0.08" | — |
| 1997 | 44° | 20° | 32° | — | — |
| 1996 | 55° | 34° | 44° | — | — |
| 1995 | 50° | 31° | 40° | — | — |
| 1994 | 42° | 29° | 35° | 2.84" | — |
| 1993 | 34° | 18° | 26° | — | — |
| 1992 | 48° | 24° | 36° | — | — |
| 1991 | 48° | 25° | 36° | — | — |
| 1990 | 35° | 3° | 19° | — | — |
| 1989 | 33° | 24° | 29° | — | — |
| 1988 | 41° | 12° | 27° | 0.2" | 2" |
| 1987 | 49° | 14° | 31° | — | — |
| 1986 | 38° | 33° | 35° | — | — |
| 1985 | 44° | 10° | 27° | 0.13" | — |
| 1984 | 45° | 28° | 36° | — | — |
| 1983 | 63° | — | — | — | — |
| 1982 | 46° | 31° | 38° | — | — |
| 1981 | 54° | 29° | 41° | — | — |
| 1980 | 41° | 33° | 37° | — | — |
| 1979 | 37° | 8° | 23° | — | — |
| 1978 | 30° | 6° | 18° | — | 0.1" |
| 1977 | 34° | 14° | 24° | 0.03" | 0.3" |
| 1976 | 55° | 20° | 37° | — | — |
| 1975 | 42° | 18° | 30° | — | — |
| 1974 | 47° | 18° | 32° | — | — |
| 1973 | 36° | 30° | 33° | 0.18" | 0.7" |
| 1972 | 38° | 9° | 23° | — | — |
| 1971 | 52° | 31° | 41° | 0.94" | — |
56 years of data from WHEATON 3 SE