Weather on February 20
Naperville, IL
55 Years of Data
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.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 64° | 28° | 46° | 0.05" | — |
| 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° | 0.04" | 0.6" |
| 2018 | 59° | 38° | 48° | 1.93" | — |
| 2017warmest | 69° | 28° | 49° | — | — |
| 2016 | 63° | 26° | 44° | — | — |
| 2015coldest | 7° | -9° | -1° | — | — |
| 2014 | 46° | — | — | — | — |
| 2013 | 14° | 6° | 10° | 0.02" | 0.4" |
| 2012 | — | 14° | — | — | — |
| 2011 | 39° | 26° | 33° | 0.04" | — |
| 2010 | 44° | 14° | 29° | 0.02" | — |
| 2009 | 24° | 10° | 17° | — | — |
| 2008 | 15° | 3° | 9° | 0.03" | 0.3" |
| 2007 | 48° | 15° | 32° | — | — |
| 2006 | 33° | 12° | 23° | — | — |
| 2005 | 39° | 31° | 35° | 0.11" | 1" |
| 2004 | 44° | 36° | 40° | 0.07" | — |
| 2003 | 50° | 24° | 37° | — | — |
| 2002 | 53° | 39° | 46° | 0.37" | — |
| 2001 | 48° | 26° | 37° | — | — |
| 2000 | 37° | 21° | 29° | — | — |
| 1999 | 32° | 19° | 26° | — | — |
| 1998 | 45° | 34° | 39° | 0.03" | — |
| 1997 | 44° | 20° | 32° | — | — |
| 1996 | 55° | 34° | 44° | — | — |
| 1995 | 50° | 31° | 40° | — | — |
| 1994 | 42° | 29° | 35° | 1.12" | — |
| 1993 | 34° | 18° | 26° | — | — |
| 1992 | 48° | 24° | 36° | — | — |
| 1991 | 48° | 25° | 36° | — | — |
| 1990 | 35° | 3° | 19° | — | — |
| 1989 | 33° | 24° | 29° | — | — |
| 1988 | 41° | 12° | 27° | 0.08" | 2" |
| 1987 | 49° | 14° | 31° | — | — |
| 1986 | 38° | 33° | 35° | — | — |
| 1985 | 44° | 10° | 27° | 0.05" | — |
| 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° | 0.01" | 0.3" |
| 1976 | 55° | 20° | 37° | — | — |
| 1975 | 42° | 18° | 30° | — | — |
| 1974 | 47° | 18° | 32° | — | — |
| 1973 | 36° | 30° | 33° | 0.07" | 0.7" |
| 1972 | 38° | 9° | 23° | — | — |
| 1971 | 52° | 31° | 41° | 0.37" | — |
Naperville, IL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Naperville, IL Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Naperville, IL Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Naperville, IL
Most pleasant months in Naperville, IL: May, June, September.
What to expect on February 20th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
February 20th outlook →