Weather on April 15
Rockford, IL
55 Years of Data
Avg High
62°F
Avg Low
39°F
Warmest
2003
72°F avg
Coldest
2018
30°F avg
About This Date
April 15th in Rockford, IL typically brings mild spring weather, with average highs around 62°F and lows near 39°F. Over 55 years of records, the warmest April 15th was in 2003 (72°F average), while the coldest was 2018 (30°F) — a 42°F range across recorded history. Precipitation has occurred on 44% of recorded April 15th dates, with snow falling 7% of the time. The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
Planning for April 15th 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 | 58° | 41° | 49° | — | — |
| 2024 | 79° | 45° | 62° | — | — |
| 2023 | 83° | 57° | 70° | 0.71" | — |
| 2022 | 50° | 34° | 42° | — | — |
| 2021 | 57° | 37° | 47° | — | — |
| 2020 | 43° | 26° | 35° | 0.08" | 0.1" |
| 2019 | 51° | 24° | 38° | — | — |
| 2018coldest | 34° | 26° | 30° | 0.43" | 0.6" |
| 2017 | 82° | 60° | 71° | 3.89" | — |
| 2016 | 74° | 43° | 58° | — | — |
| 2015 | 70° | 44° | 57° | — | — |
| 2014 | 40° | 23° | 32° | — | — |
| 2013 | 63° | 41° | 52° | 0.61" | — |
| 2012 | 73° | 60° | 67° | 5.74" | — |
| 2011 | 47° | 37° | 42° | 0.38" | — |
| 2010 | 81° | 52° | 66° | — | — |
| 2009 | 65° | 33° | 49° | — | — |
| 2008 | 61° | 31° | 46° | — | — |
| 2007 | 62° | 28° | 45° | — | — |
| 2006 | 74° | 44° | 59° | — | — |
| 2005 | 68° | 35° | 52° | — | — |
| 2004 | 74° | 39° | 56° | — | — |
| 2003warmest | 86° | 58° | 72° | — | — |
| 2002 | 87° | 55° | 71° | — | — |
| 2001 | 57° | 37° | 47° | 0.18" | — |
| 2000 | 76° | 40° | 58° | — | — |
| 1999 | 49° | 43° | 46° | 3.07" | — |
| 1998 | 56° | 45° | 50° | 1.27" | — |
| 1997 | 66° | 30° | 48° | — | — |
| 1996 | 44° | 31° | 37° | 1.93" | — |
| 1995 | 59° | 39° | 49° | 0.05" | — |
| 1994 | 68° | 45° | 56° | 1.04" | — |
| 1993 | 41° | 37° | 39° | 2.77" | — |
| 1992 | 62° | 39° | 51° | 2.49" | — |
| 1991 | 63° | 41° | 52° | 0.81" | — |
| 1990 | 58° | 35° | 46° | 0.05" | — |
| 1989 | 61° | 32° | 46° | — | — |
| 1988 | 52° | 30° | 41° | — | — |
| 1987 | 62° | 43° | 52° | — | — |
| 1986 | 42° | 30° | 36° | 0.25" | 1" |
| 1985 | 72° | 48° | 60° | — | — |
| 1984 | 48° | 43° | 45° | 0.64" | — |
| 1983 | 43° | 28° | 35° | — | — |
| 1982 | 72° | 40° | 56° | 0.79" | — |
| 1981 | 57° | 28° | 43° | — | — |
| 1980 | 48° | 31° | 39° | 0.08" | 0.4" |
| 1979 | 57° | 35° | 46° | — | — |
| 1978 | 57° | 28° | 43° | — | — |
| 1977 | 79° | 44° | 61° | 0.03" | — |
| 1976 | 80° | 61° | 70° | 2.18" | — |
| 1975 | 56° | 38° | 47° | — | — |
| 1974 | 54° | 35° | 44° | — | — |
| 1973 | 74° | 44° | 59° | 0.2" | — |
| 1972 | 59° | 42° | 51° | — | — |
| 1971 | 70° | 33° | 51° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP