Climate ZonesTexasWebb

What Climate Zone is Webb, Texas?

Webb is in IECC Climate Zone 2B (Hot - Dry). Get accurate Manual J load calculations with official design temperatures for Webb.

Climate Zone
2B
Winter Design
31°F
Summer Design
108°F
ZIP Codes
11

Webb HVAC Contractors: Get Your Free Manual J Report

Climate Zone 2B requires precise load calculations. Upload your Webb blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Webb's exact design temperatures (31°F winter / 108°F summer).

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Verify Your Webb ZIP Code

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

Webb covers 11 ZIP codes: 78040, 78041, 78043, 78045, 78046, 78344, 78369, 78371, 78042, 78044 and 1 more

Webb Design Temperatures

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

Winter 99% Design Temp
31°F
Summer 1% Design Temp
108°F
Summer Wet Bulb
71°F

IECC Requirements for Zone 2B

Minimum insulation and window requirements for Webb 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 Webb

Heating Systems

Gas furnace
Heat pump
Electric resistance
Typical AFUE
80-90%

Cooling Systems

AC (14-16 SEER)
Evaporative cooling (swamp cooler)
Typical SEER
14-16 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 2B
View All Zones in
Texas
HVAC Permits for
Webb, Texas

Get Free Manual J Calculations for Webb

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

Webb design temps
Zone 2B compliant
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