Weather on May 4
Rockford, IL
55 Years of Data
Avg High
67°F
Avg Low
43°F
Warmest
2000
71°F avg
Coldest
1971
45°F avg
About This Date
May 4th in Rockford, IL typically brings mild spring weather, with average highs around 67°F and lows near 43°F. Over 55 years of records, the warmest May 4th was in 2000 (71°F average), while the coldest was 1971 (45°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 36% of May 4th dates historically, with the wettest May 4th recording 3.81" of rain. 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 May 4th in Rockford, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 40° | 54° | — | — |
| 2024 | 80° | 42° | 61° | 2.31" | — |
| 2023 | 74° | 35° | 54° | — | — |
| 2022 | 62° | 36° | 49° | — | — |
| 2021 | 61° | 46° | 53° | — | — |
| 2020 | 54° | 39° | 46° | — | — |
| 2019 | 68° | 36° | 52° | — | — |
| 2018 | 75° | 54° | 64° | — | — |
| 2017 | 64° | 39° | 52° | — | — |
| 2016 | 60° | 40° | 50° | 0.23" | — |
| 2015 | 76° | 51° | 63° | 1.47" | — |
| 2014 | 59° | 45° | 52° | — | — |
| 2013 | 73° | 50° | 62° | — | — |
| 2012 | 80° | 58° | 69° | 0.2" | — |
| 2011 | 60° | 30° | 45° | — | — |
| 2010 | 81° | 44° | 62° | — | — |
| 2009 | 73° | 43° | 58° | — | — |
| 2008 | 65° | 35° | 50° | — | — |
| 2007 | 67° | 51° | 59° | 0.25" | — |
| 2006 | 65° | 48° | 56° | — | — |
| 2005 | 63° | 28° | 45° | — | — |
| 2004 | 70° | 44° | 57° | 0.08" | — |
| 2003 | 56° | 40° | 48° | 3.58" | — |
| 2002 | 69° | 34° | 51° | — | — |
| 2001 | 63° | 53° | 58° | 0.03" | — |
| 2000warmest | 82° | 60° | 71° | — | — |
| 1999 | 81° | 56° | 68° | 0.05" | — |
| 1998 | 74° | 47° | 60° | — | — |
| 1997 | 65° | 32° | 48° | — | — |
| 1996 | 62° | 41° | 52° | — | — |
| 1995 | 58° | 47° | 52° | — | — |
| 1994 | 69° | 36° | 52° | — | — |
| 1993 | 72° | 52° | 62° | 0.15" | — |
| 1992 | 60° | 38° | 49° | — | — |
| 1991 | 63° | 43° | 53° | — | — |
| 1990 | 48° | 44° | 46° | 3.81" | — |
| 1989 | 63° | 44° | 53° | 0.48" | — |
| 1988 | 68° | 40° | 54° | 0.03" | — |
| 1987 | 62° | 34° | 48° | — | — |
| 1986 | 79° | 46° | 62° | — | — |
| 1985 | 79° | 46° | 62° | — | — |
| 1984 | 59° | 38° | 48° | — | — |
| 1983 | 61° | 38° | 49° | — | — |
| 1982 | 81° | 56° | 68° | 0.03" | — |
| 1981 | 68° | 55° | 62° | 0.53" | — |
| 1980 | 86° | 44° | 65° | — | — |
| 1979 | 59° | 39° | 49° | — | — |
| 1978 | 52° | 39° | 45° | 0.2" | — |
| 1977 | 70° | 53° | 61° | 2.29" | — |
| 1976 | 66° | 29° | 47° | — | — |
| 1975 | 62° | 43° | 52° | 0.13" | — |
| 1974 | 63° | 39° | 51° | — | — |
| 1973 | 62° | 34° | 48° | — | — |
| 1972 | 69° | 40° | 54° | 0.51" | — |
| 1971coldest | 53° | 37° | 45° | 0.36" | — |
55 years of data from ROCKFORD GTR ROCKFORD AP