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Precipitation patterns have also fluctuated, with June 20, 2018 recording the highest precipitation in the past 15 years at 13.3 mm, all of which came from rainfall. Interestingly, eight 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 38 mph (2011) and the highest sustained wind speed recorded at 16 mph (2011).
These historical trends suggest that the weather on June 20 in Wilmington has been quite unpredictable over the years.
Historical June 20 Weather in Wilmington (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 | 74°F | 1.2 mm | 1.2 mm | 0 mm | 21 mph | 5 mph |
| 2011 | 88°F | 68°F | 12 mm | 12 mm | 0 mm | 38 mph | 16 mph |
| 2012 | 92°F | 76°F | 0 mm | 0 mm | 0 mm | 28 mph | 13 mph |
| 2013 | 86°F | 63°F | 0 mm | 0 mm | 0 mm | 19 mph | 9 mph |
| 2014 | 87°F | 71°F | 8.3 mm | 8.3 mm | 0 mm | 18 mph | 8 mph |
| 2015 | 85°F | 64°F | 0.4 mm | 0.4 mm | 0 mm | 24 mph | 12 mph |
| 2016 | 95°F | 75°F | 0 mm | 0 mm | 0 mm | 23 mph | 11 mph |
| 2017 | 83°F | 62°F | 5.6 mm | 5.6 mm | 0 mm | 22 mph | 10 mph |
| 2018 | 89°F | 71°F | 13.3 mm | 13.3 mm | 0 mm | 23 mph | 10 mph |
| 2019 | 77°F | 62°F | 0 mm | 0 mm | 0 mm | 25 mph | 12 mph |
| 2020 | 86°F | 70°F | 10.8 mm | 10.8 mm | 0 mm | 30 mph | 15 mph |
| 2021 | 92°F | 72°F | 0 mm | 0 mm | 0 mm | 29 mph | 15 mph |
| 2022 | 90°F | 63°F | 0 mm | 0 mm | 0 mm | 17 mph | 9 mph |
| 2023 | 87°F | 62°F | 0 mm | 0 mm | 0 mm | 23 mph | 12 mph |
| 2024 | 90°F | 71°F | 0 mm | 0 mm | 0 mm | 13 mph | 7 mph |
