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Precipitation patterns have also fluctuated, with June 20, 2021 recording the highest precipitation in the past 15 years at 18.6 mm, all of which came from rainfall. Interestingly, five 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 20 reaching 33 mph (2019) and the highest sustained wind speed recorded at 19 mph (2019).
These historical trends suggest that the weather on June 20 in Bourbonnais has been quite unpredictable over the years.
Historical June 20 Weather in Bourbonnais (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 | 83°F | 63°F | 0 mm | 0 mm | 0 mm | 13 mph | 7 mph |
| 2011 | 82°F | 69°F | 12.7 mm | 12.7 mm | 0 mm | 26 mph | 11 mph |
| 2012 | 91°F | 76°F | 0 mm | 0 mm | 0 mm | 30 mph | 16 mph |
| 2013 | 82°F | 61°F | 0.1 mm | 0.1 mm | 0 mm | 15 mph | 7 mph |
| 2014 | 82°F | 67°F | 6.8 mm | 6.8 mm | 0 mm | 24 mph | 11 mph |
| 2015 | 82°F | 61°F | 0 mm | 0 mm | 0 mm | 26 mph | 13 mph |
| 2016 | 90°F | 75°F | 1 mm | 1 mm | 0 mm | 32 mph | 17 mph |
| 2017 | 83°F | 59°F | 0.3 mm | 0.3 mm | 0 mm | 29 mph | 14 mph |
| 2018 | 80°F | 65°F | 10.7 mm | 10.7 mm | 0 mm | 24 mph | 11 mph |
| 2019 | 69°F | 56°F | 13.4 mm | 13.4 mm | 0 mm | 33 mph | 19 mph |
| 2020 | 89°F | 67°F | 8.7 mm | 8.7 mm | 0 mm | 25 mph | 13 mph |
| 2021 | 87°F | 66°F | 18.6 mm | 18.6 mm | 0 mm | 31 mph | 12 mph |
| 2022 | 93°F | 64°F | 0 mm | 0 mm | 0 mm | 23 mph | 13 mph |
| 2023 | 89°F | 64°F | 0 mm | 0 mm | 0 mm | 30 mph | 16 mph |
| 2024 | 91°F | 70°F | 1.1 mm | 1.1 mm | 0 mm | 22 mph | 9 mph |
