Climate ZonesMississippiBiloxi

Biloxi, Mississippi HVAC Climate Zone

Biloxi is located in IECC Climate Zone 2A (Hot - Humid). Get accurate Manual J load calculations with official design temperatures for Biloxi.

Climate Zone
2A
Winter Design
32°F
Summer Design
95°F
ZIP Codes
13

Biloxi HVAC Contractors: Get Your Free Manual J Report

Climate Zone 2A requires precise load calculations. Upload your Biloxi blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Biloxi's exact design temperatures (32°F winter / 95°F summer).

Claim Free Report
No credit card required

Verify Your Biloxi ZIP Code

Enter your ZIP code to confirm it's in Biloxi and get climate zone details.

Biloxi covers 13 ZIP codes: 39530, 39531, 39532, 39533, 39534, 39540, 39553, 39560, 39562, 39564 and 3 more

Biloxi Design Temperatures

Official ASHRAE design temperatures for Biloxi, used for accurate Manual J load calculations.

Winter 99% Design Temp
32°F
Summer 1% Design Temp
95°F
Summer Wet Bulb
77°F

IECC Requirements for Zone 2A

Minimum insulation and window requirements for Biloxi per IECC 2021.

Wall Insulation:R-13
Roof/Ceiling:R-30
Floor Insulation:R-13
Window U-Factor:0.4
Window SHGC:0.25

Energy Code: 2021 IECC

Recommended HVAC Equipment for Biloxi

Heating Systems

Gas furnace
Heat pump
Electric resistance
Typical AFUE
80-92%

Cooling Systems

AC (14-16 SEER)
Heat pump
Typical SEER
14-16 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 2A
View All Zones in
Mississippi
HVAC Permits for
Biloxi, Mississippi

Get Free Manual J Calculations for Biloxi

Upload your Biloxi blueprint and get a professional Manual J load calculation using official Zone 2A design temperatures. First report is FREE.

Biloxi design temps
Zone 2A compliant
Ready in 60 seconds
Upload Blueprint → Get Free Report

Join 10,000+ Biloxi contractors who trust AutoHVAC