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Precipitation patterns have also fluctuated, with June 23, 2010 recording the highest precipitation in the past 15 years at 19.1 mm, all of which came from rainfall. Interestingly, four 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 June 23 reaching 38 mph (2010) and the highest sustained wind speed recorded at 19 mph (2010).
These historical trends suggest that the weather on June 23 in Romeoville has been quite unpredictable over the years.
Historical June 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 | 89°F | 74°F | 19.1 mm | 19.1 mm | 0 mm | 38 mph | 19 mph |
| 2011 | 69°F | 63°F | 2.5 mm | 2.5 mm | 0 mm | 30 mph | 15 mph |
| 2012 | 84°F | 61°F | 0 mm | 0 mm | 0 mm | 12 mph | 5 mph |
| 2013 | 85°F | 69°F | 0.2 mm | 0.2 mm | 0 mm | 27 mph | 12 mph |
| 2014 | 79°F | 65°F | 18.6 mm | 18.6 mm | 0 mm | 19 mph | 7 mph |
| 2015 | 79°F | 67°F | 0 mm | 0 mm | 0 mm | 24 mph | 11 mph |
| 2016 | 82°F | 64°F | 0.6 mm | 0.6 mm | 0 mm | 21 mph | 9 mph |
| 2017 | 81°F | 65°F | 16.6 mm | 16.6 mm | 0 mm | 30 mph | 13 mph |
| 2018 | 77°F | 61°F | 0.2 mm | 0.2 mm | 0 mm | 16 mph | 8 mph |
| 2019 | 78°F | 66°F | 18.3 mm | 18.3 mm | 0 mm | 33 mph | 17 mph |
| 2020 | 75°F | 61°F | 0.2 mm | 0.2 mm | 0 mm | 28 mph | 13 mph |
| 2021 | 79°F | 61°F | 3.3 mm | 3.3 mm | 0 mm | 35 mph | 17 mph |
| 2022 | 86°F | 66°F | 0 mm | 0 mm | 0 mm | 16 mph | 8 mph |
| 2023 | 84°F | 62°F | 0 mm | 0 mm | 0 mm | 19 mph | 9 mph |
| 2024 | 82°F | 66°F | 2.5 mm | 2.5 mm | 0 mm | 26 mph | 12 mph |
