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Coal City’s Aug. 21 weather: A 15-Year history

 
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Coal City’s Aug. 21 weather: A 15-Year history
Sun between clouds | PhotoAC

Over the past 15 years, Aug. 21 in Coal City has seen a widely varying range of conditions. The warmest recorded high on this date was 88°F in 2017, while the coldest low was 54°F in 2024.

Precipitation patterns have also fluctuated, with Aug. 21, 2010 recording the highest precipitation in the past 15 years at 16.9 mm, all of which came from rainfall. Interestingly, seven 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 Aug. 21 reaching 37 mph (2018) and the highest sustained wind speed recorded at 17 mph (2018).

These historical trends suggest that the weather on Aug. 21 in Coal City has been quite unpredictable over the years.

Historical Aug. 21 Weather in Coal City (Last 15 Years)
YearHigh Temp (°F)Low Temp (°F)Precipitation (mm)Rain (mm)Snowfall (mm)Strongest Wind Gust (mph)Max Wind Speed (mph)
201083°F71°F16.9 mm16.9 mm0 mm18 mph9 mph
201182°F66°F0.2 mm0.2 mm0 mm23 mph11 mph
201279°F57°F0 mm0 mm0 mm13 mph5 mph
201388°F67°F0 mm0 mm0 mm19 mph9 mph
201486°F70°F14.6 mm14.6 mm0 mm20 mph10 mph
201580°F57°F0 mm0 mm0 mm17 mph9 mph
201672°F61°F0 mm0 mm0 mm24 mph12 mph
201788°F70°F4.1 mm4.1 mm0 mm26 mph13 mph
201880°F65°F4.1 mm4.1 mm0 mm37 mph17 mph
201983°F64°F1.2 mm1.2 mm0 mm21 mph10 mph
202085°F60°F0 mm0 mm0 mm12 mph6 mph
202184°F72°F2.2 mm2.2 mm0 mm22 mph10 mph
202279°F63°F1.1 mm1.1 mm0 mm21 mph10 mph
202387°F67°F0 mm0 mm0 mm19 mph9 mph
202474°F54°F0 mm0 mm0 mm13 mph7 mph