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Precipitation patterns have also fluctuated, with July 7, 2015 recording the highest precipitation in the past 15 years at 18 mm, all of which came from rainfall. Interestingly, three 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 7 reaching 33 mph (2015) and the highest sustained wind speed recorded at 14 mph (2015).
These historical trends suggest that the weather on July 7 in Romeoville has been quite unpredictable over the years.
Historical July 7 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 | 89°F | 71°F | 0.2 mm | 0.2 mm | 0 mm | 17 mph | 8 mph |
| 2011 | 80°F | 67°F | 0 mm | 0 mm | 0 mm | 15 mph | 7 mph |
| 2012 | 99°F | 74°F | 0 mm | 0 mm | 0 mm | 29 mph | 13 mph |
| 2013 | 86°F | 68°F | 0.6 mm | 0.6 mm | 0 mm | 21 mph | 9 mph |
| 2014 | 85°F | 71°F | 6.2 mm | 6.2 mm | 0 mm | 26 mph | 13 mph |
| 2015 | 74°F | 56°F | 18 mm | 18 mm | 0 mm | 33 mph | 14 mph |
| 2016 | 85°F | 72°F | 5.6 mm | 5.6 mm | 0 mm | 18 mph | 7 mph |
| 2017 | 84°F | 66°F | 15.1 mm | 15.1 mm | 0 mm | 26 mph | 11 mph |
| 2018 | 79°F | 58°F | 0 mm | 0 mm | 0 mm | 16 mph | 7 mph |
| 2019 | 76°F | 64°F | 0.1 mm | 0.1 mm | 0 mm | 23 mph | 11 mph |
| 2020 | 91°F | 71°F | 0.1 mm | 0.1 mm | 0 mm | 15 mph | 6 mph |
| 2021 | 84°F | 70°F | 5.2 mm | 5.2 mm | 0 mm | 25 mph | 10 mph |
| 2022 | 88°F | 64°F | 1 mm | 1 mm | 0 mm | 20 mph | 10 mph |
| 2023 | 81°F | 60°F | 1.1 mm | 1.1 mm | 0 mm | 14 mph | 8 mph |
| 2024 | 85°F | 62°F | 2.5 mm | 2.5 mm | 0 mm | 22 mph | 10 mph |
