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Precipitation patterns have also fluctuated, with July 23, 2011 recording the highest precipitation in the past 15 years at 22.3 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 23 reaching 38 mph (2022) and the highest sustained wind speed recorded at 16 mph (2022).
These historical trends suggest that the weather on July 23 in Romeoville has been quite unpredictable over the years.
Historical July 23 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 | 90°F | 79°F | 5.8 mm | 5.8 mm | 0 mm | 36 mph | 16 mph |
| 2011 | 90°F | 74°F | 22.3 mm | 22.3 mm | 0 mm | 20 mph | 6 mph |
| 2012 | 96°F | 80°F | 1.5 mm | 1.5 mm | 0 mm | 29 mph | 13 mph |
| 2013 | 80°F | 64°F | 2.9 mm | 2.9 mm | 0 mm | 27 mph | 13 mph |
| 2014 | 73°F | 60°F | 2.1 mm | 2.1 mm | 0 mm | 34 mph | 16 mph |
| 2015 | 83°F | 64°F | 0 mm | 0 mm | 0 mm | 11 mph | 4 mph |
| 2016 | 88°F | 74°F | 5.3 mm | 5.3 mm | 0 mm | 16 mph | 9 mph |
| 2017 | 84°F | 69°F | 6 mm | 6 mm | 0 mm | 26 mph | 12 mph |
| 2018 | 81°F | 63°F | 1.4 mm | 1.4 mm | 0 mm | 21 mph | 9 mph |
| 2019 | 77°F | 59°F | 0.9 mm | 0.9 mm | 0 mm | 24 mph | 10 mph |
| 2020 | 81°F | 64°F | 0 mm | 0 mm | 0 mm | 21 mph | 10 mph |
| 2021 | 85°F | 71°F | 2.5 mm | 2.5 mm | 0 mm | 20 mph | 9 mph |
| 2022 | 85°F | 69°F | 18.8 mm | 18.8 mm | 0 mm | 38 mph | 16 mph |
| 2023 | 84°F | 63°F | 0 mm | 0 mm | 0 mm | 15 mph | 6 mph |
| 2024 | 84°F | 63°F | 6.3 mm | 6.3 mm | 0 mm | 26 mph | 13 mph |
