Meridian Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 5B (cold-dry). Meridian shares Boise's Treasure Valley climate — hot, dry summers (98°F/65°F) and cold winters (12°F). Low humidity in summer means sensible cooling loads dominate over latent loads.

Energy Code & Manual J Requirement: Idaho Residential Building Code (IECC 2018). ACCA Manual J required for Ada County HVAC permits. Meridian's building department processes very high permit volumes — complete, accurate Manual J documentation is essential to avoid review delays.

Local Electric Utility: Idaho Power

Building Department: City of Meridian Building Department

Local Trade Association: PHCC Idaho