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Precipitation patterns have also fluctuated, with July 29, 2016 recording the highest precipitation in the past 15 years at 38.5 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 29 reaching 34 mph (2021) and the highest sustained wind speed recorded at 17 mph (2021).
These historical trends suggest that the weather on July 29 in Romeoville has been quite unpredictable over the years.
Historical July 29 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 | 80°F | 69°F | 0.6 mm | 0.6 mm | 0 mm | 16 mph | 7 mph |
| 2011 | 86°F | 73°F | 18.3 mm | 18.3 mm | 0 mm | 20 mph | 9 mph |
| 2012 | 85°F | 66°F | 0 mm | 0 mm | 0 mm | 17 mph | 6 mph |
| 2013 | 74°F | 55°F | 0 mm | 0 mm | 0 mm | 17 mph | 7 mph |
| 2014 | 77°F | 59°F | 0 mm | 0 mm | 0 mm | 24 mph | 10 mph |
| 2015 | 84°F | 70°F | 4.7 mm | 4.7 mm | 0 mm | 24 mph | 12 mph |
| 2016 | 79°F | 67°F | 38.5 mm | 38.5 mm | 0 mm | 20 mph | 10 mph |
| 2017 | 77°F | 60°F | 0 mm | 0 mm | 0 mm | 25 mph | 11 mph |
| 2018 | 77°F | 58°F | 0.9 mm | 0.9 mm | 0 mm | 10 mph | 5 mph |
| 2019 | 81°F | 68°F | 11 mm | 11 mm | 0 mm | 25 mph | 11 mph |
| 2020 | 86°F | 69°F | 0.7 mm | 0.7 mm | 0 mm | 21 mph | 9 mph |
| 2021 | 90°F | 68°F | 1 mm | 1 mm | 0 mm | 34 mph | 17 mph |
| 2022 | 78°F | 60°F | 0 mm | 0 mm | 0 mm | 21 mph | 10 mph |
| 2023 | 80°F | 65°F | 0.9 mm | 0.9 mm | 0 mm | 22 mph | 9 mph |
| 2024 | 83°F | 69°F | 11.7 mm | 11.7 mm | 0 mm | 33 mph | 15 mph |
