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Precipitation patterns have also fluctuated, with April 20, 2011 recording the highest precipitation in the past 15 years at 23 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 April 20 reaching 39 mph (2011) and the highest sustained wind speed recorded at 16 mph (2017).
These historical trends suggest that the weather on April 20 in Bromley has been quite unpredictable over the years.
Historical April 20 Weather in Bromley (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 | 65°F | 45°F | 0 mm | 0 mm | 0 mm | 15 mph | 7 mph |
| 2011 | 68°F | 49°F | 23 mm | 23 mm | 0 mm | 39 mph | 14 mph |
| 2012 | 73°F | 53°F | 0.1 mm | 0.1 mm | 0 mm | 33 mph | 13 mph |
| 2013 | 52°F | 38°F | 0 mm | 0 mm | 0 mm | 28 mph | 11 mph |
| 2014 | 73°F | 42°F | 0 mm | 0 mm | 0 mm | 13 mph | 7 mph |
| 2015 | 62°F | 50°F | 9.2 mm | 9.2 mm | 0 mm | 39 mph | 15 mph |
| 2016 | 79°F | 53°F | 0 mm | 0 mm | 0 mm | 19 mph | 8 mph |
| 2017 | 79°F | 63°F | 1.2 mm | 1.2 mm | 0 mm | 39 mph | 16 mph |
| 2018 | 57°F | 33°F | 0 mm | 0 mm | 0 mm | 14 mph | 7 mph |
| 2019 | 47°F | 41°F | 17.4 mm | 17.4 mm | 0 mm | 28 mph | 13 mph |
| 2020 | 62°F | 38°F | 0 mm | 0 mm | 0 mm | 23 mph | 10 mph |
| 2021 | 65°F | 36°F | 4.2 mm | 2 mm | 15.4 mm | 31 mph | 14 mph |
| 2022 | 64°F | 35°F | 0 mm | 0 mm | 0 mm | 23 mph | 12 mph |
| 2023 | 82°F | 57°F | 0 mm | 0 mm | 0 mm | 29 mph | 14 mph |
| 2024 | 55°F | 43°F | 0 mm | 0 mm | 0 mm | 24 mph | 11 mph |
