🇺🇸 Knoxville vs 🇺🇸 San Francisco

Knoxville at the Tennessee River bend in the Great Smoky Mountains foothills has a humid subtropical climate modified by elevation and terrain. The city sits in the Valley and Ridge physiographic province where ridge-and-valley patterns create varied microclimates. The Great Smokies to the southeast generate orographic fog that gives the range its name.

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.