🇺🇸 Manchester vs 🇺🇸 San Francisco

Manchester is New Hampshire's largest city on the Merrimack River with a humid continental climate. Positioned between the White Mountains to the north and the Atlantic coast to the southeast, it receives weather from both directions. The Merrimack River valley creates cold air pooling and fog while nor'easters bring significant snow.

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.