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Precipitation patterns have also fluctuated, with May 12, 2016 recording the highest precipitation in the past 15 years at 8.8 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 May 12 reaching 32 mph (2015) and the highest sustained wind speed recorded at 14 mph (2015).
These historical trends suggest that the weather on May 12 in Petersburg has been quite unpredictable over the years.
Historical May 12 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 | 72°F | 62°F | 7.6 mm | 7.6 mm | 0 mm | 24 mph | 12 mph |
| 2011 | 85°F | 69°F | 0.1 mm | 0.1 mm | 0 mm | 22 mph | 7 mph |
| 2012 | 74°F | 53°F | 0 mm | 0 mm | 0 mm | 12 mph | 6 mph |
| 2013 | 56°F | 43°F | 0 mm | 0 mm | 0 mm | 28 mph | 12 mph |
| 2014 | 83°F | 66°F | 0 mm | 0 mm | 0 mm | 31 mph | 11 mph |
| 2015 | 69°F | 55°F | 0 mm | 0 mm | 0 mm | 32 mph | 14 mph |
| 2016 | 76°F | 61°F | 8.8 mm | 8.8 mm | 0 mm | 26 mph | 9 mph |
| 2017 | 62°F | 52°F | 0 mm | 0 mm | 0 mm | 17 mph | 8 mph |
| 2018 | 84°F | 68°F | 0.4 mm | 0.4 mm | 0 mm | 29 mph | 12 mph |
| 2019 | 58°F | 49°F | 2.8 mm | 2.8 mm | 0 mm | 21 mph | 9 mph |
| 2020 | 56°F | 37°F | 0 mm | 0 mm | 0 mm | 12 mph | 5 mph |
| 2021 | 61°F | 40°F | 0 mm | 0 mm | 0 mm | 26 mph | 10 mph |
| 2022 | 84°F | 57°F | 0 mm | 0 mm | 0 mm | 19 mph | 8 mph |
| 2023 | 80°F | 63°F | 3.4 mm | 3.4 mm | 0 mm | 24 mph | 12 mph |
| 2024 | 74°F | 49°F | 0 mm | 0 mm | 0 mm | 14 mph | 8 mph |
