Corpus Christi Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 2A (hot-humid). Corpus Christi's Gulf Coast position produces year-round warm conditions — 96°F/79°F cooling design and 32°F heating design. Gulf breezes moderate summer heat; high humidity and salt air are the dominant design factors.

Energy Code & Manual J Requirement: Texas Energy Code (IECC 2015, Texas modified). ACCA Manual J required for residential HVAC permits in Nueces County and all Corpus Christi area jurisdictions.

Local Electric Utility: AEP Texas (Central)

Building Department: City of Corpus Christi Development Services

Local Trade Association: ACCA Texas