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Precipitation patterns have also fluctuated, with May 21, 2018 recording the highest precipitation in the past 15 years at 24.2 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 May 21 reaching 41 mph (2024) and the highest sustained wind speed recorded at 23 mph (2024).
These historical trends suggest that the weather on May 21 in Manhattan has been quite unpredictable over the years.
Historical May 21 Weather in Manhattan (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 | 70°F | 57°F | 9.9 mm | 9.9 mm | 0 mm | 24 mph | 12 mph |
| 2011 | 75°F | 61°F | 2.9 mm | 2.9 mm | 0 mm | 28 mph | 10 mph |
| 2012 | 65°F | 54°F | 0 mm | 0 mm | 0 mm | 27 mph | 13 mph |
| 2013 | 80°F | 66°F | 5 mm | 5 mm | 0 mm | 38 mph | 20 mph |
| 2014 | 83°F | 63°F | 1.6 mm | 1.6 mm | 0 mm | 19 mph | 11 mph |
| 2015 | 65°F | 42°F | 0 mm | 0 mm | 0 mm | 24 mph | 12 mph |
| 2016 | 73°F | 48°F | 0 mm | 0 mm | 0 mm | 21 mph | 10 mph |
| 2017 | 63°F | 52°F | 0.5 mm | 0.5 mm | 0 mm | 29 mph | 16 mph |
| 2018 | 74°F | 51°F | 24.2 mm | 24.2 mm | 0 mm | 26 mph | 13 mph |
| 2019 | 57°F | 45°F | 22.4 mm | 22.4 mm | 0 mm | 35 mph | 21 mph |
| 2020 | 67°F | 50°F | 0 mm | 0 mm | 0 mm | 22 mph | 12 mph |
| 2021 | 83°F | 66°F | 0 mm | 0 mm | 0 mm | 27 mph | 14 mph |
| 2022 | 64°F | 57°F | 10 mm | 10 mm | 0 mm | 23 mph | 9 mph |
| 2023 | 76°F | 49°F | 0 mm | 0 mm | 0 mm | 15 mph | 9 mph |
| 2024 | 86°F | 62°F | 0.5 mm | 0.5 mm | 0 mm | 41 mph | 23 mph |
