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Precipitation patterns have also fluctuated, with Nov. 30, 2019 recording the highest precipitation in the past 15 years at 12.8 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 Nov. 30 reaching 43 mph (2022) and the highest sustained wind speed recorded at 23 mph (2022).
These historical trends suggest that the weather on Nov. 30 in Romeoville has been quite unpredictable over the years.
Historical Nov. 30 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 | 49°F | 28°F | 1.7 mm | 1.7 mm | 0 mm | 34 mph | 17 mph |
| 2011 | 41°F | 26°F | 0 mm | 0 mm | 0 mm | 22 mph | 12 mph |
| 2012 | 52°F | 37°F | 0 mm | 0 mm | 0 mm | 13 mph | 8 mph |
| 2013 | 47°F | 29°F | 0 mm | 0 mm | 0 mm | 24 mph | 11 mph |
| 2014 | 47°F | 27°F | 0.2 mm | 0.2 mm | 0.7 mm | 23 mph | 11 mph |
| 2015 | 43°F | 35°F | 7.2 mm | 7.2 mm | 0 mm | 23 mph | 11 mph |
| 2016 | 43°F | 33°F | 0 mm | 0 mm | 0 mm | 26 mph | 13 mph |
| 2017 | 50°F | 37°F | 0.3 mm | 0.3 mm | 0 mm | 27 mph | 13 mph |
| 2018 | 37°F | 22°F | 0 mm | 0 mm | 0 mm | 17 mph | 9 mph |
| 2019 | 40°F | 35°F | 12.8 mm | 12.8 mm | 0 mm | 29 mph | 15 mph |
| 2020 | 37°F | 28°F | 0 mm | 0 mm | 0 mm | 31 mph | 16 mph |
| 2021 | 48°F | 30°F | 0 mm | 0 mm | 0 mm | 22 mph | 12 mph |
| 2022 | 33°F | 20°F | 0 mm | 0 mm | 0 mm | 43 mph | 23 mph |
| 2023 | 50°F | 29°F | 0.5 mm | 0.5 mm | 0 mm | 25 mph | 12 mph |
| 2024 | 26°F | 14°F | 0 mm | 0 mm | 0 mm | 25 mph | 11 mph |
