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Precipitation patterns have also fluctuated, with July 15, 2020 recording the highest precipitation in the past 15 years at 55.8 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 July 15 reaching 34 mph (2019) and the highest sustained wind speed recorded at 16 mph (2020).
These historical trends suggest that the weather on July 15 in Lemont has been quite unpredictable over the years.
Historical July 15 Weather in Lemont (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 | 86°F | 72°F | 5 mm | 5 mm | 0 mm | 30 mph | 11 mph |
| 2011 | 84°F | 67°F | 0 mm | 0 mm | 0 mm | 17 mph | 7 mph |
| 2012 | 90°F | 72°F | 1.2 mm | 1.2 mm | 0 mm | 17 mph | 6 mph |
| 2013 | 88°F | 72°F | 2.8 mm | 2.8 mm | 0 mm | 15 mph | 6 mph |
| 2014 | 66°F | 56°F | 0.6 mm | 0.6 mm | 0 mm | 27 mph | 12 mph |
| 2015 | 74°F | 59°F | 0 mm | 0 mm | 0 mm | 20 mph | 10 mph |
| 2016 | 74°F | 62°F | 0.4 mm | 0.4 mm | 0 mm | 23 mph | 9 mph |
| 2017 | 78°F | 59°F | 0 mm | 0 mm | 0 mm | 17 mph | 8 mph |
| 2018 | 84°F | 71°F | 2.5 mm | 2.5 mm | 0 mm | 18 mph | 6 mph |
| 2019 | 87°F | 73°F | 0 mm | 0 mm | 0 mm | 34 mph | 16 mph |
| 2020 | 83°F | 69°F | 55.8 mm | 55.8 mm | 0 mm | 31 mph | 16 mph |
| 2021 | 77°F | 68°F | 13.8 mm | 13.8 mm | 0 mm | 33 mph | 15 mph |
| 2022 | 75°F | 63°F | 43.1 mm | 43.1 mm | 0 mm | 25 mph | 10 mph |
| 2023 | 84°F | 68°F | 11.6 mm | 11.6 mm | 0 mm | 23 mph | 11 mph |
| 2024 | 89°F | 71°F | 53.7 mm | 53.7 mm | 0 mm | 30 mph | 15 mph |
