Climate ZonesWisconsinVernon

Vernon, Wisconsin HVAC Climate Zone

Vernon is located in IECC Climate Zone 6A (Cold - Humid). Get accurate Manual J load calculations with official design temperatures for Vernon.

Climate Zone
6A
Winter Design
-9°F
Summer Design
89°F
ZIP Codes
11

Vernon HVAC Contractors: Get Your Free Manual J Report

Climate Zone 6A requires precise load calculations. Upload your Vernon blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Vernon's exact design temperatures (-9°F winter / 89°F summer).

Claim Free Report
No credit card required

Verify Your Vernon ZIP Code

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

Vernon covers 11 ZIP codes: 54621, 54623, 54624, 54632, 54634, 54639, 54651, 54652, 54658, 54665 and 1 more

Vernon Design Temperatures

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

Winter 99% Design Temp
-9°F
Summer 1% Design Temp
89°F
Summer Wet Bulb
73°F

IECC Requirements for Zone 6A

Minimum insulation and window requirements for Vernon per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-49
Floor Insulation:R-30
Window U-Factor:0.3
Window SHGC:0.4

Energy Code: 2021 IECC

Recommended HVAC Equipment for Vernon

Heating Systems

Gas furnace (96%+ AFUE)
Boiler
Cold climate heat pump
Typical AFUE
96-98%

Cooling Systems

AC (13-15 SEER)
Typical SEER
13-15 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 6A
View All Zones in
Wisconsin
HVAC Permits for
Vernon, Wisconsin

Get Free Manual J Calculations for Vernon

Upload your Vernon blueprint and get a professional Manual J load calculation using official Zone 6A design temperatures. First report is FREE.

Vernon design temps
Zone 6A compliant
Ready in 60 seconds
Upload Blueprint → Get Free Report

Join 10,000+ Vernon contractors who trust AutoHVAC