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Precipitation patterns have also fluctuated, with July 19, 2010 recording the highest precipitation in the past 15 years at 22.1 mm, all of which came from rainfall. Interestingly, six 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 19 reaching 38 mph (2013) and the highest sustained wind speed recorded at 17 mph (2013).
These historical trends suggest that the weather on July 19 in Romeoville has been quite unpredictable over the years.
Historical July 19 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 | 69°F | 22.1 mm | 22.1 mm | 0 mm | 24 mph | 6 mph |
| 2011 | 93°F | 79°F | 0.6 mm | 0.6 mm | 0 mm | 18 mph | 10 mph |
| 2012 | 91°F | 74°F | 2.3 mm | 2.3 mm | 0 mm | 22 mph | 10 mph |
| 2013 | 92°F | 78°F | 0.9 mm | 0.9 mm | 0 mm | 38 mph | 17 mph |
| 2014 | 78°F | 58°F | 0 mm | 0 mm | 0 mm | 12 mph | 5 mph |
| 2015 | 85°F | 67°F | 0 mm | 0 mm | 0 mm | 24 mph | 11 mph |
| 2016 | 88°F | 67°F | 0 mm | 0 mm | 0 mm | 12 mph | 4 mph |
| 2017 | 86°F | 72°F | 11.8 mm | 11.8 mm | 0 mm | 23 mph | 7 mph |
| 2018 | 84°F | 62°F | 1 mm | 1 mm | 0 mm | 29 mph | 15 mph |
| 2019 | 91°F | 74°F | 13.2 mm | 13.2 mm | 0 mm | 30 mph | 14 mph |
| 2020 | 86°F | 70°F | 22 mm | 22 mm | 0 mm | 35 mph | 15 mph |
| 2021 | 81°F | 64°F | 1.2 mm | 1.2 mm | 0 mm | 12 mph | 4 mph |
| 2022 | 86°F | 66°F | 0 mm | 0 mm | 0 mm | 29 mph | 14 mph |
| 2023 | 83°F | 58°F | 0 mm | 0 mm | 0 mm | 11 mph | 5 mph |
| 2024 | 79°F | 55°F | 0 mm | 0 mm | 0 mm | 10 mph | 4 mph |
