Boulder City Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 3B (hot-dry). Boulder City's 2,500' elevation moderates summer heat slightly compared to Las Vegas — 109°F cooling design versus Las Vegas's 113°F — while maintaining the same desert hot-dry climate classification and similar heating design (29°F).

Energy Code & Manual J Requirement: Nevada Energy Code (IECC 2024). ACCA Manual J required for residential HVAC permits in Clark County and Boulder City jurisdictions.

Local Electric Utility: NV Energy (Nevada Power / Sierra Pacific Power)

Building Department: City of Boulder City Building Department

Local Trade Association: ACCA Nevada / ASHRAE Nevada Chapter