Climate ZonesTexasFort Bend

Fort Bend, Texas HVAC Climate Zone

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

Climate Zone
2A
Winter Design
32°F
Summer Design
95°F
ZIP Codes
17

Fort Bend HVAC Contractors: Get Your Free Manual J Report

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

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Verify Your Fort Bend ZIP Code

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

Fort Bend covers 17 ZIP codes: 77417, 77441, 77444, 77451, 77459, 77461, 77464, 77469, 77471, 77476 and 7 more

Fort Bend Design Temperatures

Official ASHRAE design temperatures for Fort Bend, 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 Fort Bend 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 Fort Bend

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
Fort Bend, Texas

Get Free Manual J Calculations for Fort Bend

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

Fort Bend design temps
Zone 2A compliant
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