Climate ZonesMissouriCape Girardeau

Cape Girardeau, Missouri HVAC Climate Zone

Cape Girardeau is located in IECC Climate Zone 4A (Mixed - Humid). Get accurate Manual J load calculations with official design temperatures for Cape Girardeau.

Climate Zone
4A
Winter Design
13°F
Summer Design
91°F
ZIP Codes
10

Cape Girardeau HVAC Contractors: Get Your Free Manual J Report

Climate Zone 4A requires precise load calculations. Upload your Cape Girardeau blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Cape Girardeau's exact design temperatures (13°F winter / 91°F summer).

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Verify Your Cape Girardeau ZIP Code

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

Cape Girardeau covers 10 ZIP codes: 63701, 63703, 63739, 63743, 63747, 63755, 63766, 63769, 63770, 63785

Cape Girardeau Design Temperatures

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

Winter 99% Design Temp
13°F
Summer 1% Design Temp
91°F
Summer Wet Bulb
75°F

IECC Requirements for Zone 4A

Minimum insulation and window requirements for Cape Girardeau per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-49
Floor Insulation:R-19
Window U-Factor:0.32
Window SHGC:0.4

Energy Code: 2020 IECC

Recommended HVAC Equipment for Cape Girardeau

Heating Systems

Gas furnace (90%+ AFUE)
Heat pump
Typical AFUE
92-96%

Cooling Systems

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

Get Free Manual J Calculations for Cape Girardeau

Upload your Cape Girardeau blueprint and get a professional Manual J load calculation using official Zone 4A design temperatures. First report is FREE.

Cape Girardeau design temps
Zone 4A compliant
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