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Rockford, IL Weather on April 11
April 11th in Rockford, IL typically brings cool spring weather, with average highs around 58°F and lows near 37°F. Over 55 years of records, the warmest April 11th was in 1977 (70°F average), while the coldest was 1973 (32°F) — a 38°F range across recorded history. Precipitation has occurred on 36% of recorded April 11th dates, with snow falling 5% of the time (heaviest snowfall: 1.9"). Temperatures on this date have remained relatively stable over the past several decades.
What to Expect on April 11
Planning for April 11th in Rockford, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
April 11 Weather Records for Rockford
- •The all-time record high for April 11th in Rockford, IL is 84°F, set in 1977.
- •The coldest April 11th on record dropped to 19°F in 1973.
- •A freeze (32°F or below) has occurred on April 11th in 18 of the last 55 years.
- •Last year (1971), April 11th was 17°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest April 11 ever in Rockford?
The warmest April 11 in Rockford, IL reached 84°F in 1977. That is 26°F above the long-term average high of 58°F.
What was the coldest April 11 ever in Rockford?
The coldest April 11 in Rockford, IL dropped to 19°F in 1973. That is 18°F below the long-term average low of 37°F.
What is the average temperature on April 11 in Rockford?
On April 11, Rockford averages a high of 58°F and a low of 37°F based on 55 years of NOAA weather observations from ROCKFORD GTR ROCKFORD AP.
How many years of weather data are available for April 11 in Rockford?
We have 55 years of weather records for April 11 in Rockford, IL, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 11 Weather History in Rockford
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 57°F | 32°F | 0" | -- |
| 2024 | 63°F | 48°F | 0" | -- |
| 2023 | 78°F | 43°F | 0" | -- |
| 2022 | 64°F | 36°F | 0" | -- |
| 2021 | 58°F | 46°F | 0.25" | -- |
| 2020 | 62°F | 43°F | 0.46" | -- |
| 2019 | 53°F | 37°F | 0.48" | -- |
| 2018 | 63°F | 33°F | 0.25" | -- |
| 2017 | 51°F | 38°F | 0" | -- |
| 2016 | 51°F | 34°F | 0" | -- |
| 2015 | 63°F | 33°F | 0" | -- |
| 2014 | 70°F | 33°F | 0" | -- |
| 2013 | 46°F | 37°F | 0.41" | -- |
| 2012 | 57°F | 27°F | 0" | -- |
| 2011 | 66°F | 48°F | 0" | -- |
| 2010 | 65°F | 48°F | 0" | -- |
| 2009 | 55°F | 33°F | 0" | -- |
| 2008 | 59°F | 41°F | 0.03" | -- |
| 2007 | 40°F | 34°F | 1.75" | 1.9" |
| 2006 | 72°F | 46°F | 0" | -- |
| 2005 | 78°F | 54°F | 0.08" | -- |
| 2004 | 48°F | 27°F | 0" | -- |
| 2003 | 74°F | 32°F | 0" | -- |
| 2002 | 75°F | 45°F | 0" | -- |
| 2001 | 71°F | 47°F | 2.39" | -- |
| 2000 | 43°F | 31°F | 0" | -- |
| 1999 | 52°F | 40°F | 0" | -- |
| 1998 | 66°F | 32°F | 0" | -- |
| 1997 | 34°F | 31°F | 0.84" | -- |
| 1996 | 80°F | 38°F | 0" | -- |
| 1995 | 55°F | 36°F | 1.45" | -- |
| 1994 | 52°F | 41°F | 0.03" | -- |
| 1993 | 50°F | 37°F | 0.08" | -- |
| 1992 | 49°F | 38°F | 0" | -- |
| 1991 | 43°F | 32°F | 0" | -- |
| 1990 | 39°F | 25°F | 0" | -- |
| 1989 | 51°F | 22°F | 0" | -- |
| 1988 | 60°F | 40°F | 0" | -- |
| 1987 | 59°F | 41°F | 0.03" | -- |
| 1986 | 68°F | 27°F | 0" | -- |
| 1985 | 66°F | 44°F | 0" | -- |
| 1984 | 62°F | 30°F | 0" | -- |
| 1983 | 44°F | 33°F | 0" | -- |
| 1982 | 47°F | 26°F | 0" | -- |
| 1981 | 66°F | 51°F | 0" | -- |
| 1980 | 42°F | 32°F | 1.17" | 0.2" |
| 1979 | 40°F | 31°F | 2.57" | -- |
| 1978 | 56°F | 38°F | 0.03" | -- |
| 1977 | 84°F | 56°F | 0" | -- |
| 1976 | 44°F | 27°F | 0.13" | -- |
| 1975 | 46°F | 29°F | 0" | -- |
| 1974 | 58°F | 49°F | 0.46" | -- |
| 1973 | 44°F | 19°F | 0.74" | 0.8" |
| 1972 | 55°F | 40°F | 0" | -- |
| 1971 | 75°F | 42°F | 0" | -- |
Based on 55 years of data from NOAA station: ROCKFORD GTR ROCKFORD AP
Monthly Climate Averages
Historical temperature and precipitation averages for Rockford, IL, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.