Weather on December 31
Naperville, IL
55 Years of Data
About This Date
December 31st in Naperville, IL typically brings cold winter weather, with average highs around 34°F and lows near 20°F. Over 55 years of records, the warmest December 31st was in 2004 (52°F average), while the coldest was 1976 (-3°F) — a 55°F range across recorded history. Precipitation has occurred on 49% of recorded December 31st dates, with snow falling 27% of the time (heaviest snowfall: 4.5"). The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Naperville, IL? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 30° | 9° | 19° | 0.28" | 1.3" |
| 2024 | 38° | 30° | 34° | 0.74" | — |
| 2023 | 34° | 23° | 28° | 0.05" | 0.1" |
| 2022 | 41° | 22° | 31° | — | — |
| 2021 | 35° | 28° | 32° | — | — |
| 2020 | 34° | 21° | 27° | — | — |
| 2019 | 34° | 24° | 29° | 0.51" | 1.8" |
| 2018 | 37° | 18° | 27° | — | — |
| 2017 | 7° | -6° | 1° | 0.13" | 0.5" |
| 2016 | 38° | 23° | 30° | — | — |
| 2015 | 30° | 23° | 27° | 0.18" | 1.1" |
| 2014 | 21° | 4° | 12° | — | — |
| 2013 | 13° | -1° | 6° | 0.13" | 0.6" |
| 2012 | 33° | 13° | 23° | — | — |
| 2011 | 44° | 26° | 35° | 0.3" | — |
| 2010 | 50° | 38° | 44° | 0.76" | — |
| 2009 | 31° | 23° | 27° | 0.33" | 1.3" |
| 2008 | 41° | 11° | 26° | 0.03" | 0.2" |
| 2007 | 34° | 15° | 24° | 0.05" | 0.2" |
| 2006 | 56° | 44° | 50° | 0.43" | — |
| 2005 | 37° | 33° | 35° | 0.91" | — |
| 2004warmest | 56° | 48° | 52° | 0.36" | — |
| 2003 | 42° | 37° | 40° | — | — |
| 2002 | 59° | 30° | 45° | — | — |
| 2001 | 25° | 7° | 16° | — | — |
| 2000 | 30° | 17° | 24° | 0.13" | 4.5" |
| 1999 | 45° | 22° | 33° | — | — |
| 1998 | 26° | -2° | 12° | 0.2" | — |
| 1997 | 24° | 10° | 17° | 0.03" | 0.1" |
| 1996 | 34° | 23° | 28° | — | — |
| 1995 | 35° | 30° | 33° | 0.25" | 1.7" |
| 1994 | 37° | 27° | 32° | — | — |
| 1993 | 37° | 16° | 26° | — | — |
| 1992 | 52° | 22° | 37° | 4.24" | — |
| 1991 | 38° | 26° | 32° | — | — |
| 1990 | 12° | 1° | 7° | — | — |
| 1989 | 30° | 21° | 26° | 0.05" | 0.5" |
| 1988 | 32° | 12° | 22° | — | — |
| 1987 | 36° | 19° | 27° | — | — |
| 1986 | 38° | 31° | 34° | — | — |
| 1985 | 38° | 20° | 29° | — | — |
| 1984 | 36° | 28° | 32° | 0.08" | — |
| 1983 | 22° | 4° | 13° | — | — |
| 1982 | 36° | 24° | 30° | — | — |
| 1981 | 37° | 25° | 31° | — | — |
| 1980 | 35° | 29° | 32° | 0.05" | — |
| 1979 | 44° | 19° | 32° | 3.07" | — |
| 1978 | 25° | 17° | 21° | 0.46" | 2" |
| 1977 | 34° | 28° | 31° | — | — |
| 1976coldest | 6° | -13° | -3° | — | — |
| 1975 | 35° | 12° | 24° | — | — |
| 1974 | 36° | 25° | 30° | 0.79" | 2.2" |
| 1973 | 15° | -1° | 7° | — | — |
| 1972 | 47° | 28° | 37° | 0.03" | — |
| 1971 | 42° | 24° | 33° | — | — |