Weather on April 15
Rockford, IL
55 Years of Data
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 56 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 45% of recorded April 15th dates, with snow falling 7% of the time. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°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.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 72° | 58° | 65° | 2.21" | — |
| 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° | — | — |
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.