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Precipitation patterns have also fluctuated, with March 20, 2018 recording the highest precipitation in the past 15 years at 22.7 mm, consisting of 19.7 mm of rainfall and 21 mm of snowfall. For reference, 7 mm of snowfall is generally equivalent to 1 mm of rain or total precipitation. 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 March 20 reaching 48 mph (2020) and the highest sustained wind speed recorded at 18 mph (2020).
These historical trends suggest that the weather on March 20 in Bromley has been quite unpredictable over the years.
Historical March 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 | 66°F | 41°F | 0 mm | 0 mm | 0 mm | 19 mph | 8 mph |
| 2011 | 65°F | 42°F | 0.2 mm | 0.2 mm | 0 mm | 24 mph | 10 mph |
| 2012 | 82°F | 58°F | 0 mm | 0 mm | 0 mm | 12 mph | 6 mph |
| 2013 | 40°F | 27°F | 0 mm | 0 mm | 0 mm | 31 mph | 13 mph |
| 2014 | 53°F | 34°F | 0 mm | 0 mm | 0 mm | 28 mph | 11 mph |
| 2015 | 51°F | 39°F | 1.5 mm | 1.5 mm | 0 mm | 13 mph | 5 mph |
| 2016 | 45°F | 29°F | 0 mm | 0 mm | 0 mm | 23 mph | 10 mph |
| 2017 | 63°F | 35°F | 8.9 mm | 8.9 mm | 0 mm | 25 mph | 10 mph |
| 2018 | 39°F | 32°F | 22.7 mm | 19.7 mm | 21 mm | 28 mph | 14 mph |
| 2019 | 57°F | 32°F | 0.1 mm | 0.1 mm | 0 mm | 24 mph | 8 mph |
| 2020 | 71°F | 40°F | 7.1 mm | 7.1 mm | 0 mm | 48 mph | 18 mph |
| 2021 | 58°F | 29°F | 0 mm | 0 mm | 0 mm | 15 mph | 7 mph |
| 2022 | 60°F | 38°F | 0.6 mm | 0.6 mm | 0 mm | 21 mph | 10 mph |
| 2023 | 48°F | 23°F | 0 mm | 0 mm | 0 mm | 19 mph | 9 mph |
| 2024 | 52°F | 32°F | 0 mm | 0 mm | 0 mm | 32 mph | 15 mph |
