Over the last 15 years, temperatures on Sept. 21 have ranged from a high of 91.5°F in 2010 and 2022 to a low of 48.3°F in 2020, according to Open-Meteo.
Over the last 15 years, temperatures on Sept. 21 have ranged from a high of 91.5°F in 2010 and 2022 to a low of 48.4°F in 2020, according to Open-Meteo.