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Precipitation patterns have also fluctuated, with June 20, 2015 recording the highest precipitation in the past 15 years at 63.2 mm, all of which came from rainfall. Interestingly, seven 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 39 mph (2019) and the highest sustained wind speed recorded at 17 mph (2019).
These historical trends suggest that the weather on June 20 in Petersburg has been quite unpredictable over the years.
Historical June 20 Weather in Petersburg (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 | 90°F | 69°F | 0 mm | 0 mm | 0 mm | 17 mph | 6 mph |
| 2011 | 84°F | 64°F | 1.8 mm | 1.8 mm | 0 mm | 23 mph | 11 mph |
| 2012 | 93°F | 71°F | 0 mm | 0 mm | 0 mm | 17 mph | 5 mph |
| 2013 | 84°F | 63°F | 0 mm | 0 mm | 0 mm | 12 mph | 6 mph |
| 2014 | 88°F | 70°F | 13.3 mm | 13.3 mm | 0 mm | 22 mph | 6 mph |
| 2015 | 80°F | 69°F | 63.2 mm | 63.2 mm | 0 mm | 23 mph | 10 mph |
| 2016 | 89°F | 71°F | 0 mm | 0 mm | 0 mm | 25 mph | 10 mph |
| 2017 | 82°F | 62°F | 0 mm | 0 mm | 0 mm | 23 mph | 9 mph |
| 2018 | 85°F | 71°F | 7.7 mm | 7.7 mm | 0 mm | 28 mph | 9 mph |
| 2019 | 75°F | 66°F | 6.6 mm | 6.6 mm | 0 mm | 39 mph | 17 mph |
| 2020 | 88°F | 65°F | 0 mm | 0 mm | 0 mm | 14 mph | 7 mph |
| 2021 | 87°F | 69°F | 1.5 mm | 1.5 mm | 0 mm | 24 mph | 10 mph |
| 2022 | 90°F | 58°F | 0 mm | 0 mm | 0 mm | 14 mph | 5 mph |
| 2023 | 81°F | 66°F | 3.5 mm | 3.5 mm | 0 mm | 26 mph | 12 mph |
| 2024 | 91°F | 71°F | 0.4 mm | 0.4 mm | 0 mm | 10 mph | 4 mph |
