Climate ZonesTexasGonzales

What Climate Zone is Gonzales, Texas?

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

Climate Zone
2A
Winter Design
32°F
Summer Design
95°F
ZIP Codes
10

Gonzales HVAC Contractors: Get Your Free Manual J Report

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

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Verify Your Gonzales ZIP Code

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

Gonzales covers 10 ZIP codes: 78122, 78140, 78159, 78614, 78629, 78632, 78658, 78959, 78604, 78677

Gonzales Design Temperatures

Official ASHRAE design temperatures for Gonzales, 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 Gonzales 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 Gonzales

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
Texas
HVAC Permits for
Gonzales, Texas

Get Free Manual J Calculations for Gonzales

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Gonzales design temps
Zone 2A compliant
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