🇺🇸 Louisville vs 🇺🇸 San Francisco

Louisville on the Ohio River is famous for the Kentucky Derby in May — a time when weather can be unpredictable. The Ohio River valley creates humidity and occasional flooding while the city's position at the transition between humid subtropical (south) and humid continental (north) means it gets the worst of both — ice storms, thunderstorms, and summer humidity.

San Francisco's climate is shaped by its position on a peninsula surrounded by the Pacific Ocean and San Francisco Bay. The coastal fog (Karl the Fog) rolls in through the Golden Gate each summer afternoon, keeping temperatures mild year-round. The city has dramatically different microclimates — the Sunset District fog-bound while the Mission basks in sun on the same day.