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Precipitation patterns have also fluctuated, with June 18, 2011 recording the highest precipitation in the past 15 years at 10.3 mm, all of which came from rainfall. Interestingly, six 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 18 reaching 36 mph (2024) and the highest sustained wind speed recorded at 19 mph (2024).
These historical trends suggest that the weather on June 18 in Wilmington has been quite unpredictable over the years.
Historical June 18 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 | 89.1°F | 73.4°F | 1.6 mm | 1.6 mm | 0 mm | 25 mph | 10 mph |
| 2011 | 83.0°F | 68.7°F | 10.3 mm | 10.3 mm | 0 mm | 22 mph | 11 mph |
| 2012 | 93.6°F | 75.5°F | 0 mm | 0 mm | 0 mm | 34 mph | 16 mph |
| 2013 | 83.2°F | 65.1°F | 0.9 mm | 0.9 mm | 0 mm | 21 mph | 9 mph |
| 2014 | 88.2°F | 73.5°F | 0.2 mm | 0.2 mm | 0 mm | 27 mph | 12 mph |
| 2015 | 79.0°F | 68.6°F | 5.8 mm | 5.8 mm | 0 mm | 22 mph | 7 mph |
| 2016 | 88.9°F | 68.5°F | 0 mm | 0 mm | 0 mm | 19 mph | 8 mph |
| 2017 | 79.2°F | 66.6°F | 0.7 mm | 0.7 mm | 0 mm | 26 mph | 12 mph |
| 2018 | 94.3°F | 77.1°F | 0 mm | 0 mm | 0 mm | 22 mph | 10 mph |
| 2019 | 78.6°F | 62.6°F | 0.6 mm | 0.6 mm | 0 mm | 14 mph | 5 mph |
| 2020 | 86.1°F | 62.6°F | 0 mm | 0 mm | 0 mm | 18 mph | 8 mph |
| 2021 | 97.5°F | 74.7°F | 0.1 mm | 0.1 mm | 0 mm | 29 mph | 12 mph |
| 2022 | 80.7°F | 64.0°F | 0 mm | 0 mm | 0 mm | 20 mph | 9 mph |
| 2023 | 79.8°F | 64.5°F | 1.2 mm | 1.2 mm | 0 mm | 28 mph | 13 mph |
| 2024 | 87.3°F | 71.7°F | 0 mm | 0 mm | 0 mm | 36 mph | 19 mph |
