🇺🇸 Las Vegas vs 🇺🇸 San Francisco

Las Vegas in the Mojave Desert has one of the most extreme urban climates on Earth. The Strip's hotels, casinos, and their massive HVAC systems exhaust enormous heat into the desert air, amplifying the already brutal Mojave summer. Temperatures regularly exceed 115°F while the city's rapid sprawl has converted reflective desert to heat-absorbing pavement and building.

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.