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Precipitation patterns remained nearly unchanged, with Aug. 17, 2019 recording the highest precipitation in the past 15 years at 13.4 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 Aug. 17 reaching 39 mph (2017) and the highest sustained wind speed recorded at 20 mph (2017).
These historical trends suggest that the weather on Aug. 17 in Coal City has been somewhat predictable over the years.
Historical Aug. 17 Weather in Coal City (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 | 77°F | 65°F | 1.7 mm | 1.7 mm | 0 mm | 11 mph | 7 mph |
| 2011 | 84°F | 64°F | 0 mm | 0 mm | 0 mm | 15 mph | 7 mph |
| 2012 | 74°F | 59°F | 0 mm | 0 mm | 0 mm | 19 mph | 8 mph |
| 2013 | 79°F | 57°F | 0 mm | 0 mm | 0 mm | 19 mph | 9 mph |
| 2014 | 79°F | 65°F | 0.1 mm | 0.1 mm | 0 mm | 22 mph | 10 mph |
| 2015 | 86°F | 71°F | 11.2 mm | 11.2 mm | 0 mm | 20 mph | 10 mph |
| 2016 | 85°F | 69°F | 0.7 mm | 0.7 mm | 0 mm | 17 mph | 7 mph |
| 2017 | 83°F | 72°F | 6.7 mm | 6.7 mm | 0 mm | 39 mph | 20 mph |
| 2018 | 79°F | 70°F | 6.9 mm | 6.9 mm | 0 mm | 14 mph | 7 mph |
| 2019 | 77°F | 67°F | 13.4 mm | 13.4 mm | 0 mm | 24 mph | 11 mph |
| 2020 | 77°F | 66°F | 3.5 mm | 3.5 mm | 0 mm | 23 mph | 8 mph |
| 2021 | 82°F | 63°F | 2.2 mm | 2.2 mm | 0 mm | 17 mph | 7 mph |
| 2022 | 81°F | 59°F | 0.1 mm | 0.1 mm | 0 mm | 15 mph | 6 mph |
| 2023 | 80°F | 62°F | 6 mm | 6 mm | 0 mm | 33 mph | 17 mph |
| 2024 | 81°F | 69°F | 2.1 mm | 2.1 mm | 0 mm | 24 mph | 11 mph |
