Weather on November 21
Rockford, IL
55 Years of Data
Avg High
43°F
Avg Low
27°F
Warmest
1990
54°F avg
Coldest
2000
18°F avg
About This Date
November 21st in Rockford, IL typically brings chilly fall weather, with average highs around 43°F and lows near 27°F. Over 55 years of records, the warmest November 21st was in 1990 (54°F average), while the coldest was 2000 (18°F) — a 36°F range across recorded history. Precipitation has occurred on 27% of recorded November 21st dates, with snow falling 11% of the time (heaviest snowfall: 3.9"). The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
Planning for November 21st in Rockford, IL? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 47° | 30° | 38° | — | — |
| 2024 | 41° | 28° | 35° | 0.56" | 0.4" |
| 2023 | 42° | 31° | 37° | 1.07" | — |
| 2022 | 46° | 22° | 34° | — | — |
| 2021 | 56° | 27° | 42° | — | — |
| 2020 | 45° | 33° | 39° | — | — |
| 2019 | 56° | 37° | 46° | 1.37" | — |
| 2018 | 38° | 26° | 32° | — | — |
| 2017 | 47° | 22° | 35° | — | — |
| 2016 | 42° | 19° | 31° | — | — |
| 2015 | 32° | 12° | 22° | 1.02" | 3.9" |
| 2014 | 34° | 5° | 20° | — | — |
| 2013 | 47° | 37° | 42° | — | — |
| 2012 | 60° | 33° | 47° | — | — |
| 2011 | 49° | 28° | 38° | — | — |
| 2010 | 58° | 39° | 48° | — | — |
| 2009 | 53° | 30° | 42° | — | — |
| 2008 | 29° | 14° | 21° | — | — |
| 2007 | 44° | 32° | 38° | 0.56" | 1" |
| 2006 | 51° | 29° | 40° | — | — |
| 2005 | 51° | 32° | 42° | — | — |
| 2004 | 44° | 29° | 36° | — | — |
| 2003 | 47° | 38° | 42° | — | — |
| 2002 | 39° | 31° | 35° | 0.28" | — |
| 2001 | 55° | 35° | 45° | — | — |
| 2000coldest | 26° | 11° | 18° | — | — |
| 1999 | 54° | 31° | 42° | — | — |
| 1998 | 42° | 18° | 30° | — | — |
| 1997 | 42° | 25° | 33° | — | — |
| 1996 | 35° | 30° | 33° | 0.1" | — |
| 1995 | 34° | 21° | 27° | — | — |
| 1994 | 50° | 29° | 39° | 0.05" | — |
| 1993 | 53° | 33° | 43° | — | — |
| 1992 | 55° | 39° | 47° | 0.3" | — |
| 1991 | 54° | 24° | 39° | — | — |
| 1990warmest | 64° | 44° | 54° | 0.61" | — |
| 1989 | 31° | 23° | 27° | 0.13" | 1" |
| 1988 | 30° | 26° | 28° | — | — |
| 1987 | 34° | 13° | 23° | — | — |
| 1986 | 31° | 26° | 28° | — | — |
| 1985 | 32° | 14° | 23° | — | — |
| 1984 | 38° | 12° | 25° | — | — |
| 1983 | 51° | 32° | 42° | — | — |
| 1982 | 52° | 32° | 42° | — | — |
| 1981 | 28° | 15° | 22° | — | — |
| 1980 | 45° | 26° | 35° | — | — |
| 1979 | 58° | 42° | 50° | 2.21" | — |
| 1978 | 29° | 23° | 26° | — | — |
| 1977 | 31° | 19° | 25° | — | — |
| 1976 | 32° | 25° | 28° | 0.05" | 0.2" |
| 1975 | 34° | 25° | 29° | 0.13" | 0.5" |
| 1974 | 38° | 25° | 31° | — | — |
| 1973 | 59° | 38° | 48° | 0.25" | — |
| 1972 | 35° | 31° | 33° | — | — |
| 1971 | 34° | 20° | 27° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP