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Precipitation patterns have also fluctuated, with July 30, 2013 recording the highest precipitation in the past 15 years at 18.2 mm, all of which came from rainfall. Interestingly, nine 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 30 reaching 23 mph (2020) and the highest sustained wind speed recorded at 12 mph (2020).
These historical trends suggest that the weather on July 30 in Coal City has been quite unpredictable over the years.
Historical July 30 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 | 78°F | 69°F | 0.9 mm | 0.9 mm | 0 mm | 14 mph | 10 mph |
| 2011 | 90°F | 71°F | 0 mm | 0 mm | 0 mm | 10 mph | 5 mph |
| 2012 | 91°F | 72°F | 0 mm | 0 mm | 0 mm | 15 mph | 6 mph |
| 2013 | 68°F | 60°F | 18.2 mm | 18.2 mm | 0 mm | 17 mph | 9 mph |
| 2014 | 78°F | 60°F | 0 mm | 0 mm | 0 mm | 20 mph | 9 mph |
| 2015 | 84°F | 65°F | 0 mm | 0 mm | 0 mm | 21 mph | 11 mph |
| 2016 | 76°F | 68°F | 7.1 mm | 7.1 mm | 0 mm | 20 mph | 8 mph |
| 2017 | 82°F | 59°F | 0 mm | 0 mm | 0 mm | 15 mph | 7 mph |
| 2018 | 79°F | 60°F | 0.5 mm | 0.5 mm | 0 mm | 20 mph | 9 mph |
| 2019 | 79°F | 64°F | 0 mm | 0 mm | 0 mm | 21 mph | 10 mph |
| 2020 | 80°F | 68°F | 0.8 mm | 0.8 mm | 0 mm | 23 mph | 12 mph |
| 2021 | 76°F | 65°F | 0 mm | 0 mm | 0 mm | 18 mph | 9 mph |
| 2022 | 81°F | 61°F | 0 mm | 0 mm | 0 mm | 15 mph | 7 mph |
| 2023 | 81°F | 65°F | 0 mm | 0 mm | 0 mm | 20 mph | 10 mph |
| 2024 | 90°F | 69°F | 0.4 mm | 0.4 mm | 0 mm | 18 mph | 7 mph |
