Weather on September 8
Rockford, IL
55 Years of Data
Avg High
77°F
Avg Low
56°F
Warmest
1978
80°F avg
Coldest
1986
54°F avg
About This Date
September 8th in Rockford, IL typically brings pleasant fall weather, with average highs around 77°F and lows near 56°F. Over 55 years of records, the warmest September 8th was in 1978 (80°F average), while the coldest was 1986 (54°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 33% of September 8th dates historically, with the wettest September 8th recording 5.23" of rain. The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
Planning for September 8th in Rockford, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 40° | 56° | — | — |
| 2024 | 73° | 40° | 56° | — | — |
| 2023 | 69° | 58° | 63° | — | — |
| 2022 | 82° | 57° | 70° | — | — |
| 2021 | 79° | 54° | 66° | — | — |
| 2020 | 58° | 54° | 56° | 5.23" | — |
| 2019 | 65° | 60° | 62° | 0.23" | — |
| 2018 | 71° | 58° | 64° | — | — |
| 2017 | 72° | 50° | 61° | — | — |
| 2016 | 85° | 65° | 75° | 0.51" | — |
| 2015 | 79° | 67° | 73° | 0.99" | — |
| 2014 | 76° | 54° | 65° | — | — |
| 2013 | 79° | 69° | 74° | — | — |
| 2012 | 74° | 51° | 62° | 0.3" | — |
| 2011 | 78° | 52° | 65° | — | — |
| 2010 | 72° | 48° | 60° | — | — |
| 2009 | 80° | 53° | 67° | — | — |
| 2008 | 63° | 50° | 56° | 1.14" | — |
| 2007 | 82° | 59° | 71° | — | — |
| 2006 | 83° | 57° | 70° | — | — |
| 2005 | 80° | 64° | 72° | — | — |
| 2004 | 72° | 53° | 62° | — | — |
| 2003 | 88° | 59° | 73° | — | — |
| 2002 | 90° | 60° | 75° | — | — |
| 2001 | 75° | 63° | 69° | 0.03" | — |
| 2000 | 84° | 66° | 75° | 0.03" | — |
| 1999 | 81° | 55° | 68° | 0.03" | — |
| 1998 | 70° | 49° | 59° | — | — |
| 1997 | 73° | 60° | 67° | 0.05" | — |
| 1996 | 77° | 62° | 70° | 0.64" | — |
| 1995 | 68° | 49° | 58° | — | — |
| 1994 | 79° | 55° | 67° | — | — |
| 1993 | 70° | 52° | 61° | 0.36" | — |
| 1992 | 70° | 52° | 61° | — | — |
| 1991 | 87° | 62° | 75° | — | — |
| 1990 | 81° | 62° | 71° | — | — |
| 1989 | 78° | 67° | 72° | 0.03" | — |
| 1988 | 82° | 52° | 67° | — | — |
| 1987 | 80° | 60° | 70° | — | — |
| 1986coldest | 72° | 37° | 54° | — | — |
| 1985 | 89° | 68° | 79° | 3.4" | — |
| 1984 | 72° | 62° | 67° | 0.18" | — |
| 1983 | 87° | 53° | 70° | — | — |
| 1982 | 73° | 46° | 60° | — | — |
| 1981 | 74° | 52° | 63° | — | — |
| 1980 | 88° | 65° | 76° | 0.08" | — |
| 1979 | 68° | 42° | 55° | — | — |
| 1978warmest | 95° | 65° | 80° | — | — |
| 1977 | 83° | 53° | 68° | — | — |
| 1976 | 89° | 50° | 70° | 0.23" | — |
| 1975 | 68° | 46° | 57° | — | — |
| 1974 | 84° | 54° | 69° | — | — |
| 1973 | 74° | 59° | 66° | 0.28" | — |
| 1972 | 67° | 53° | 60° | — | — |
| 1971 | 92° | 66° | 79° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP