Weather on December 4
Rockford, IL
55 Years of Data
Avg High
37°F
Avg Low
21°F
Warmest
1998
59°F avg
Coldest
1991
1°F avg
About This Date
December 4th in Rockford, IL typically brings cold winter weather, with average highs around 37°F and lows near 21°F. Over 55 years of records, the warmest December 4th was in 1998 (59°F average), while the coldest was 1991 (1°F) — a 58°F range across recorded history. Precipitation has occurred on 24% of recorded December 4th dates, with snow falling 18% of the time (heaviest snowfall: 5.7"). The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for December 4th in Rockford, IL? Bundle up with warm layers and protect extremities from the cold.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 14° | -4° | 5° | — | — |
| 2024 | 43° | 13° | 28° | — | 0.2" |
| 2023 | 38° | 33° | 35° | — | — |
| 2022 | 39° | 14° | 27° | — | — |
| 2021 | 42° | 25° | 34° | — | — |
| 2020 | 47° | 26° | 37° | — | — |
| 2019 | 45° | 30° | 38° | — | — |
| 2018 | 30° | 26° | 28° | — | 0.1" |
| 2017 | 62° | 40° | 51° | — | — |
| 2016 | 34° | 29° | 32° | 1.22" | 5.3" |
| 2015 | 48° | 26° | 37° | — | — |
| 2014 | 34° | 20° | 27° | — | — |
| 2013 | 52° | 32° | 42° | 0.13" | — |
| 2012 | 58° | 34° | 46° | — | — |
| 2011 | 51° | 33° | 42° | 0.05" | — |
| 2010 | 32° | 24° | 28° | 0.79" | 5.7" |
| 2009 | 27° | 17° | 22° | 0.03" | 0.6" |
| 2008 | 21° | 5° | 13° | — | 0.2" |
| 2007 | 31° | 20° | 25° | 0.64" | 2.9" |
| 2006 | 31° | 1° | 16° | — | — |
| 2005 | 21° | 5° | 13° | — | 0.1" |
| 2004 | 41° | 27° | 34° | — | — |
| 2003 | 37° | 32° | 35° | 0.38" | — |
| 2002 | 27° | 7° | 17° | — | — |
| 2001 | 62° | 52° | 57° | — | — |
| 2000 | 36° | 22° | 29° | — | — |
| 1999 | 47° | 41° | 44° | 1.35" | — |
| 1998warmest | 65° | 54° | 59° | — | — |
| 1997 | 33° | 26° | 30° | — | — |
| 1996 | 28° | 13° | 20° | — | — |
| 1995 | 39° | 24° | 32° | — | — |
| 1994 | 53° | 34° | 43° | — | — |
| 1993 | 42° | 35° | 39° | — | — |
| 1992 | 30° | 15° | 23° | 0.05" | 0.3" |
| 1991coldest | 7° | -4° | 1° | 0.03" | 0.1" |
| 1990 | 24° | 7° | 15° | — | — |
| 1989 | 43° | 20° | 31° | — | — |
| 1988 | 40° | 18° | 29° | — | — |
| 1987 | 30° | 17° | 24° | — | — |
| 1986 | 30° | 18° | 24° | — | — |
| 1985 | 32° | 20° | 26° | — | — |
| 1984 | 22° | 8° | 15° | — | — |
| 1983 | 37° | 30° | 34° | 0.03" | — |
| 1982 | 46° | 31° | 38° | 0.28" | — |
| 1981 | 33° | 26° | 30° | — | — |
| 1980 | 34° | 23° | 28° | — | — |
| 1979 | 42° | 16° | 29° | — | — |
| 1978 | 31° | 6° | 18° | — | — |
| 1977 | 28° | 8° | 18° | — | — |
| 1976 | 19° | 2° | 10° | — | — |
| 1975 | 50° | 23° | 37° | — | — |
| 1974 | 30° | 8° | 19° | — | — |
| 1973 | 48° | 35° | 42° | 3.28" | — |
| 1972 | 21° | 11° | 16° | — | — |
| 1971 | 38° | 27° | 32° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP