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Precipitation patterns have also fluctuated, with July 11, 2015 recording the highest precipitation in the past 15 years at 25.1 mm, all of which came from rainfall. Interestingly, five years out of the last 15 years had no measurable precipitation on this date.
Wind speeds have varied as well, with the strongest gust on July 11 reaching 33 mph (2021) and the highest sustained wind speed recorded at 15 mph (2021).
These historical trends suggest that the weather on July 11 in Romeoville has been quite unpredictable over the years.
Historical July 11 Weather in Romeoville (Last 15 Years)
| Year | High Temp (°F) | Low Temp (°F) | Precipitation (mm) | Rain (mm) | Snowfall (mm) | Strongest Wind Gust (mph) | Max Wind Speed (mph) |
|---|---|---|---|---|---|---|---|
| 2010 | 83°F | 64°F | 2.2 mm | 2.2 mm | 0 mm | 21 mph | 9 mph |
| 2011 | 92°F | 74°F | 10.9 mm | 10.9 mm | 0 mm | 32 mph | 10 mph |
| 2012 | 87°F | 66°F | 0 mm | 0 mm | 0 mm | 22 mph | 7 mph |
| 2013 | 78°F | 64°F | 0 mm | 0 mm | 0 mm | 20 mph | 9 mph |
| 2014 | 79°F | 56°F | 0 mm | 0 mm | 0 mm | 16 mph | 7 mph |
| 2015 | 76°F | 59°F | 25.1 mm | 25.1 mm | 0 mm | 23 mph | 6 mph |
| 2016 | 88°F | 70°F | 0 mm | 0 mm | 0 mm | 26 mph | 13 mph |
| 2017 | 84°F | 68°F | 2.5 mm | 2.5 mm | 0 mm | 27 mph | 12 mph |
| 2018 | 85°F | 65°F | 0 mm | 0 mm | 0 mm | 16 mph | 7 mph |
| 2019 | 83°F | 63°F | 0.6 mm | 0.6 mm | 0 mm | 20 mph | 9 mph |
| 2020 | 83°F | 66°F | 1.9 mm | 1.9 mm | 0 mm | 28 mph | 10 mph |
| 2021 | 69°F | 64°F | 21.2 mm | 21.2 mm | 0 mm | 33 mph | 15 mph |
| 2022 | 85°F | 68°F | 0.1 mm | 0.1 mm | 0 mm | 31 mph | 15 mph |
| 2023 | 88°F | 65°F | 14.2 mm | 14.2 mm | 0 mm | 26 mph | 12 mph |
| 2024 | 80°F | 63°F | 2.6 mm | 2.6 mm | 0 mm | 16 mph | 8 mph |
