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Precipitation patterns have also fluctuated, with April 18, 2022 recording the highest precipitation in the past 15 years at 7.6 mm, consisting of 4.7 mm of rainfall and 20.3 mm of snowfall. For reference, 7 mm of snowfall is generally equivalent to 1 mm of rain or total precipitation. Interestingly, 11 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 April 18 reaching 41 mph (2019) and the highest sustained wind speed recorded at 19 mph (2013).
These historical trends suggest that the weather on April 18 in Petersburg has been quite unpredictable over the years.
Historical April 18 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 | 60°F | 39°F | 0 mm | 0 mm | 0 mm | 16 mph | 7 mph |
| 2011 | 72°F | 54°F | 0.7 mm | 0.7 mm | 0 mm | 29 mph | 12 mph |
| 2012 | 68°F | 47°F | 0 mm | 0 mm | 0 mm | 14 mph | 6 mph |
| 2013 | 81°F | 64°F | 0 mm | 0 mm | 0 mm | 40 mph | 19 mph |
| 2014 | 68°F | 44°F | 0 mm | 0 mm | 0 mm | 12 mph | 4 mph |
| 2015 | 77°F | 52°F | 0 mm | 0 mm | 0 mm | 17 mph | 8 mph |
| 2016 | 81°F | 52°F | 0 mm | 0 mm | 0 mm | 11 mph | 5 mph |
| 2017 | 74°F | 51°F | 0 mm | 0 mm | 0 mm | 25 mph | 10 mph |
| 2018 | 72°F | 35°F | 1 mm | 1 mm | 0 mm | 39 mph | 16 mph |
| 2019 | 76°F | 57°F | 0.7 mm | 0.7 mm | 0 mm | 41 mph | 17 mph |
| 2020 | 54°F | 35°F | 0 mm | 0 mm | 0 mm | 22 mph | 10 mph |
| 2021 | 62°F | 36°F | 0 mm | 0 mm | 0 mm | 22 mph | 8 mph |
| 2022 | 46°F | 35°F | 7.6 mm | 4.7 mm | 20.3 mm | 32 mph | 14 mph |
| 2023 | 62°F | 37°F | 0 mm | 0 mm | 0 mm | 19 mph | 7 mph |
| 2024 | 77°F | 53°F | 0 mm | 0 mm | 0 mm | 20 mph | 10 mph |
