Weather on December 11
Rockford, IL
55 Years of Data
About This Date
December 11th in Rockford, IL typically brings cold winter weather, with average highs around 33°F and lows near 17°F. Over 55 years of records, the warmest December 11th was in 2015 (44°F average), while the coldest was 1972 (-1°F) — a 45°F range across recorded history. Precipitation has occurred on 33% of recorded December 11th dates, with snow falling 24% of the time (heaviest snowfall: 8.3"). 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 December 11th in Rockford, 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 | 26° | 22° | 24° | — | — |
| 2024 | 30° | 6° | 18° | — | 0.1" |
| 2023 | 36° | 25° | 31° | — | — |
| 2022 | 39° | 34° | 36° | — | — |
| 2021 | 52° | 27° | 40° | 0.08" | — |
| 2020 | 43° | 32° | 37° | 1.78" | — |
| 2019 | 25° | 10° | 18° | — | 0.1" |
| 2018 | 36° | 22° | 29° | — | — |
| 2017 | 38° | 18° | 28° | 0.23" | 1.1" |
| 2016 | 32° | 23° | 28° | 1.09" | 4.3" |
| 2015warmest | 50° | 38° | 44° | — | — |
| 2014 | 32° | 23° | 28° | — | — |
| 2013 | 17° | -6° | 6° | 0.15" | 1.2" |
| 2012 | 35° | 19° | 27° | — | — |
| 2011 | 43° | 21° | 32° | — | — |
| 2010 | 37° | 23° | 30° | 0.99" | 0.8" |
| 2009 | 16° | -2° | 7° | — | — |
| 2008 | 29° | 13° | 21° | — | — |
| 2007 | 33° | 29° | 31° | 1.83" | 0.1" |
| 2006 | 39° | 31° | 35° | 0.05" | — |
| 2005 | 33° | 4° | 18° | 0.03" | 0.1" |
| 2004 | 36° | 32° | 34° | — | — |
| 2003 | 24° | 9° | 16° | — | — |
| 2002 | 46° | 16° | 31° | — | — |
| 2001 | 45° | 23° | 34° | — | — |
| 2000 | 16° | 8° | 12° | 1.68" | 8.3" |
| 1999 | 38° | 20° | 29° | — | — |
| 1998 | 47° | 21° | 34° | — | — |
| 1997 | 33° | 30° | 32° | — | — |
| 1996 | 37° | 34° | 35° | 2.34" | — |
| 1995 | 5° | -2° | 2° | 0.15" | 1.4" |
| 1994 | 19° | 2° | 10° | — | — |
| 1993 | 32° | 15° | 24° | — | — |
| 1992 | 41° | 16° | 28° | — | — |
| 1991 | 50° | 25° | 37° | — | — |
| 1990 | 45° | 28° | 36° | — | — |
| 1989 | 24° | 4° | 14° | — | — |
| 1988 | 20° | 4° | 12° | — | — |
| 1987 | 50° | 35° | 43° | 0.1" | — |
| 1986 | 30° | 11° | 20° | — | 0.1" |
| 1985 | 31° | 11° | 21° | 0.05" | 0.4" |
| 1984 | 44° | 32° | 38° | 0.76" | — |
| 1983 | 37° | 32° | 35° | 1.83" | — |
| 1982 | 27° | 7° | 17° | — | — |
| 1981 | 31° | 14° | 22° | — | — |
| 1980 | 24° | 10° | 17° | 0.03" | 0.2" |
| 1979 | 53° | 26° | 40° | 0.13" | — |
| 1978 | 32° | 18° | 25° | — | — |
| 1977 | 22° | -13° | 4° | — | — |
| 1976 | 17° | -10° | 4° | — | — |
| 1975 | 34° | 31° | 32° | — | — |
| 1974 | 39° | 21° | 30° | — | — |
| 1973 | 28° | 7° | 17° | — | — |
| 1972coldest | 15° | -18° | -1° | — | — |
| 1971 | 46° | 29° | 37° | — | — |