Weather on May 17
Rockford, IL
55 Years of Data
Avg High
73°F
Avg Low
49°F
Warmest
1977
75°F avg
Coldest
2002
41°F avg
About This Date
May 17th in Rockford, IL typically brings pleasant spring weather, with average highs around 73°F and lows near 49°F. Over 55 years of records, the warmest May 17th was in 1977 (75°F average), while the coldest was 2002 (41°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 31% of May 17th dates historically, with the wettest May 17th recording 5.26" of rain. 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 May 17th in Rockford, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 51° | 60° | — | — |
| 2024 | 82° | 51° | 67° | — | — |
| 2023 | 67° | 44° | 55° | — | — |
| 2022 | 71° | 47° | 59° | — | — |
| 2021 | 75° | 57° | 66° | — | — |
| 2020 | 70° | 54° | 62° | 3.3" | — |
| 2019 | 70° | 48° | 59° | 0.05" | — |
| 2018 | 79° | 52° | 65° | — | — |
| 2017 | 85° | 65° | 75° | 2.11" | — |
| 2016 | 64° | 43° | 53° | — | — |
| 2015 | 83° | 67° | 75° | — | — |
| 2014 | 60° | 36° | 48° | — | — |
| 2013 | 74° | 58° | 66° | — | — |
| 2012 | 77° | 43° | 60° | — | — |
| 2011 | 66° | 37° | 52° | — | — |
| 2010 | 65° | 52° | 58° | — | — |
| 2009 | 63° | 34° | 48° | — | — |
| 2008 | 73° | 52° | 62° | 0.05" | — |
| 2007 | 66° | 42° | 54° | — | — |
| 2006 | 71° | 45° | 58° | 0.1" | — |
| 2005 | 74° | 46° | 60° | — | — |
| 2004 | 80° | 57° | 69° | 1.32" | — |
| 2003 | 72° | 47° | 59° | — | — |
| 2002coldest | 48° | 34° | 41° | — | — |
| 2001 | 83° | 63° | 73° | — | — |
| 2000 | 68° | 54° | 61° | 0.28" | — |
| 1999 | 73° | 60° | 67° | 0.86" | — |
| 1998 | 86° | 49° | 67° | — | — |
| 1997 | 67° | 41° | 54° | — | — |
| 1996 | 89° | 55° | 72° | — | — |
| 1995 | 67° | 51° | 59° | — | — |
| 1994 | 71° | 37° | 54° | — | — |
| 1993 | 63° | 39° | 51° | — | — |
| 1992 | 79° | 54° | 66° | — | — |
| 1991 | 73° | 49° | 61° | 1.35" | — |
| 1990 | 60° | 50° | 55° | — | — |
| 1989 | 82° | 49° | 65° | — | — |
| 1988 | 70° | 42° | 56° | — | — |
| 1987 | 90° | 53° | 71° | 0.08" | — |
| 1986 | 67° | 52° | 59° | 5.26" | — |
| 1985 | 67° | 47° | 57° | — | — |
| 1984 | 83° | 47° | 65° | — | — |
| 1983 | 60° | 35° | 48° | 0.05" | — |
| 1982 | 85° | 61° | 73° | 0.66" | — |
| 1981 | 61° | 44° | 52° | — | — |
| 1980 | 56° | 49° | 52° | 1.7" | — |
| 1979 | 81° | 53° | 67° | — | — |
| 1978 | 72° | 43° | 57° | — | — |
| 1977warmest | 85° | 66° | 75° | 0.03" | — |
| 1976 | 65° | 41° | 53° | 0.03" | — |
| 1975 | 79° | 43° | 61° | — | — |
| 1974 | 68° | 54° | 61° | 2.59" | — |
| 1973 | 63° | 37° | 50° | — | — |
| 1972 | 83° | 52° | 67° | — | — |
| 1971 | 87° | 49° | 68° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP