🇺🇸 Boise vs 🇺🇸 San Francisco

Boise in the Treasure Valley has a semi-arid climate with hot, dry summers and cool winters. The city is in a rain shadow east of the Cascade-Sierra Nevada mountain chain, receiving only about 12 inches of precipitation annually. The Boise River and Greenbelt provide riparian cooling, while hot and dry conditions in summer can lead to significant wildfire smoke events from regional fires.

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.