Weather on December 27
Naperville, IL
55 Years of Data
Avg High
36°F
Avg Low
20°F
Warmest
2008
49°F avg
Coldest
2017
-1°F avg
About This Date
December 27th in Naperville, IL typically brings cold winter weather, with average highs around 36°F and lows near 20°F. Over 55 years of records, the warmest December 27th was in 2008 (49°F average), while the coldest was 2017 (-1°F) — a 50°F range across recorded history. Precipitation has occurred on 31% of recorded December 27th dates, with snow falling 15% of the time (heaviest snowfall: 3.5"). The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
Planning for December 27th in Naperville, IL? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Warming Trend
1.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 47° | 38° | 42° | — | — |
| 2024 | 46° | 38° | 42° | 0.1" | — |
| 2023 | 37° | 25° | 31° | — | — |
| 2022 | 20° | 1° | 10° | 0.05" | 0.2" |
| 2021 | 43° | 20° | 31° | 1.78" | — |
| 2020 | 35° | 17° | 26° | — | — |
| 2019 | 62° | 35° | 49° | — | — |
| 2018 | 53° | 36° | 44° | 1.96" | — |
| 2017coldest | 6° | -8° | -1° | — | — |
| 2016 | 53° | 25° | 39° | 0.1" | 0.4" |
| 2015 | 42° | 36° | 39° | — | — |
| 2014 | 51° | 35° | 43° | — | — |
| 2013 | 34° | 14° | 24° | — | — |
| 2012 | 32° | 26° | 29° | — | — |
| 2011 | 44° | 20° | 32° | 0.61" | — |
| 2010 | 33° | 10° | 22° | — | — |
| 2009 | 25° | 17° | 21° | 0.41" | 3" |
| 2008warmest | 64° | 33° | 49° | 2.34" | — |
| 2007 | 46° | 26° | 36° | 0.15" | — |
| 2006 | 38° | 28° | 33° | — | — |
| 2005 | 47° | 32° | 39° | — | — |
| 2004 | 26° | 6° | 16° | — | — |
| 2003 | 47° | 32° | 39° | — | — |
| 2002 | 33° | 18° | 25° | — | — |
| 2001 | 31° | 15° | 23° | 0.03" | — |
| 2000 | 22° | 14° | 18° | — | — |
| 1999 | 30° | 20° | 25° | — | 0.5" |
| 1998 | 45° | 24° | 34° | — | — |
| 1997 | 33° | 17° | 25° | — | — |
| 1996 | 31° | 16° | 23° | 0.13" | — |
| 1995 | 31° | 9° | 20° | — | — |
| 1994 | 52° | 28° | 40° | — | — |
| 1993 | 19° | 5° | 12° | — | — |
| 1992 | 40° | 16° | 28° | — | — |
| 1991 | 40° | 30° | 35° | — | — |
| 1990 | 24° | 29° | 26° | — | — |
| 1989 | 36° | 10° | 23° | 0.2" | 0.8" |
| 1988 | 38° | 25° | 31° | 2.64" | — |
| 1987 | 35° | 23° | 29° | — | — |
| 1986 | 38° | 29° | 33° | — | — |
| 1985 | 25° | 14° | 19° | 0.08" | 0.6" |
| 1984 | 42° | 28° | 35° | 0.58" | 3.5" |
| 1983 | 20° | 8° | 14° | — | — |
| 1982 | 48° | 15° | 32° | — | — |
| 1981 | 36° | 20° | 28° | — | — |
| 1980 | 28° | 18° | 23° | — | — |
| 1979 | 38° | 24° | 31° | — | — |
| 1978 | 20° | 1° | 10° | — | — |
| 1977 | 10° | -4° | 3° | — | — |
| 1976 | 35° | 0° | 18° | — | — |
| 1975 | 27° | 20° | 23° | — | — |
| 1974 | 34° | 26° | 30° | — | — |
| 1973 | 35° | 26° | 31° | 0.53" | 1.2" |
| 1972 | 40° | 14° | 27° | — | — |
| 1971 | 47° | 30° | 38° | 0.2" | — |
55 years of data from LISLE - MORTON ARBORETUM