Weather on December 1
Rockford, IL
55 Years of Data
About This Date
December 1st in Rockford, IL typically brings cold winter weather, with average highs around 38°F and lows near 23°F. Over 55 years of records, the warmest December 1st was in 1982 (51°F average), while the coldest was 1976 (14°F) — a 37°F range across recorded history. Precipitation has occurred on 45% of recorded December 1st dates, with snow falling 35% of the time (heaviest snowfall: 10.7"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 1st 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 | 25° | 8° | 16° | 0.28" | 1.3" |
| 2024 | 26° | 11° | 19° | — | — |
| 2023 | 39° | 33° | 36° | 1.12" | 0.1" |
| 2022 | 36° | 13° | 25° | — | — |
| 2021 | 53° | 33° | 43° | — | — |
| 2020 | 37° | 19° | 28° | — | — |
| 2019 | 42° | 31° | 37° | 0.33" | — |
| 2018 | 39° | 33° | 36° | 1.85" | — |
| 2017 | 53° | 23° | 38° | — | — |
| 2016 | 40° | 35° | 37° | 0.03" | — |
| 2015 | 42° | 33° | 38° | 0.3" | 0.1" |
| 2014 | 21° | 10° | 16° | — | — |
| 2013 | 44° | 24° | 34° | — | — |
| 2012 | 58° | 31° | 44° | 0.03" | — |
| 2011 | 41° | 27° | 34° | 0.13" | 0.1" |
| 2010 | 27° | 22° | 24° | — | 0.3" |
| 2009 | 56° | 28° | 42° | — | — |
| 2008 | 33° | 22° | 27° | — | 0.5" |
| 2007 | 35° | 19° | 27° | 1.68" | 1.4" |
| 2006 | 26° | 10° | 18° | 2.41" | 10.7" |
| 2005 | 27° | 13° | 20° | 0.1" | 0.9" |
| 2004 | 31° | 19° | 25° | — | — |
| 2003 | 42° | 23° | 33° | — | — |
| 2002 | 40° | 10° | 25° | — | — |
| 2001 | 41° | 28° | 35° | — | — |
| 2000 | 36° | 27° | 31° | 0.23" | 0.9" |
| 1999 | 43° | 25° | 34° | — | — |
| 1998 | 58° | 30° | 44° | — | — |
| 1997 | 38° | 30° | 34° | — | — |
| 1996 | 30° | 25° | 27° | 0.41" | — |
| 1995 | 45° | 24° | 34° | — | — |
| 1994 | 52° | 26° | 39° | — | — |
| 1993 | 43° | 21° | 32° | 0.86" | — |
| 1992 | 33° | 23° | 28° | 0.28" | 3" |
| 1991 | 28° | 16° | 22° | — | — |
| 1990 | 48° | 25° | 36° | — | — |
| 1989 | 45° | 22° | 33° | — | — |
| 1988 | 27° | 18° | 22° | — | — |
| 1987 | 33° | 29° | 31° | 0.03" | 0.1" |
| 1986 | 37° | 32° | 35° | 0.41" | — |
| 1985 | 43° | 14° | 28° | 3.71" | 1.8" |
| 1984 | 34° | 23° | 28° | — | — |
| 1983 | 26° | 17° | 22° | — | — |
| 1982warmest | 59° | 42° | 51° | — | — |
| 1981 | 40° | 33° | 36° | 0.38" | — |
| 1980 | 43° | 32° | 37° | 0.84" | 0.9" |
| 1979 | 25° | 10° | 17° | 0.05" | 0.4" |
| 1978 | 27° | 20° | 23° | 0.99" | 5.7" |
| 1977 | 35° | 26° | 31° | 0.66" | 3.4" |
| 1976coldest | 18° | 11° | 14° | 0.03" | 0.8" |
| 1975 | 27° | 12° | 19° | — | — |
| 1974 | 34° | 30° | 32° | — | — |
| 1973 | 46° | 27° | 36° | — | — |
| 1972 | 34° | 17° | 25° | 0.15" | 0.6" |
| 1971 | 31° | 11° | 21° | — | — |
Rockford, IL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rockford, IL Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rockford, IL Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Rockford, IL
Rockford, IL has no months that meet our "pleasant" threshold — every season has tradeoffs.