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Precipitation patterns have also fluctuated, with March 21, 2014 recording the highest precipitation in the past 15 years at 1.2 mm, consisting of 1 mm of rainfall and 1.4 mm of snowfall. For reference, 7 mm of snowfall is generally equivalent to 1 mm of rain or total precipitation. Interestingly, 10 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 21, 2010 and March 21, 2011 reaching 30.2 mph and the highest sustained wind speed recorded on March 21, 2010 at 15.0 mph.
These historical trends suggest that the weather on March 21 in Homer Glen has been quite unpredictable over the years.
Historical March 21 Weather in Homer Glen (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 | 43°F | 32°F | 1.1 mm | 0.9 mm | 2.1 mm | 30.2 mph | 15 mph |
| 2011 | 61°F | 40°F | 1 mm | 1 mm | 0 mm | 30.2 mph | 11.6 mph |
| 2012 | 81°F | 64°F | 0 mm | 0 mm | 0 mm | 23.9 mph | 12.1 mph |
| 2013 | 34°F | 16°F | 0 mm | 0 mm | 0 mm | 19.3 mph | 10.5 mph |
| 2014 | 60°F | 30°F | 1.2 mm | 1 mm | 1.4 mm | 30 mph | 14.2 mph |
| 2015 | 50°F | 31°F | 0 mm | 0 mm | 0 mm | 24.6 mph | 11.4 mph |
| 2016 | 48°F | 29°F | 0 mm | 0 mm | 0 mm | 19.7 mph | 10.1 mph |
| 2017 | 53°F | 30°F | 0 mm | 0 mm | 0 mm | 26.4 mph | 14.1 mph |
| 2018 | 39°F | 26°F | 0 mm | 0 mm | 0 mm | 25 mph | 11.9 mph |
| 2019 | 45°F | 35°F | 0.6 mm | 0.6 mm | 0 mm | 23.5 mph | 12.1 mph |
| 2020 | 34°F | 23°F | 0 mm | 0 mm | 0 mm | 21.5 mph | 10.8 mph |
| 2021 | 61°F | 36°F | 0 mm | 0 mm | 0 mm | 25.3 mph | 12.8 mph |
| 2022 | 69°F | 43°F | 0 mm | 0 mm | 0 mm | 25 mph | 12.8 mph |
| 2023 | 50°F | 33°F | 0.4 mm | 0.4 mm | 0 mm | 27.3 mph | 14.5 mph |
| 2024 | 42°F | 23°F | 0 mm | 0 mm | 0 mm | 18.3 mph | 8.8 mph |
