Climate ZonesMississippiLowndes

Lowndes, Mississippi HVAC Climate Zone

Lowndes is located in IECC Climate Zone 3A (Warm - Humid). Get accurate Manual J load calculations with official design temperatures for Lowndes.

Climate Zone
3A
Winter Design
22°F
Summer Design
94°F
ZIP Codes
8

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Climate Zone 3A requires precise load calculations. Upload your Lowndes blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Lowndes's exact design temperatures (22°F winter / 94°F summer).

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Verify Your Lowndes ZIP Code

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Lowndes covers 8 ZIP codes: 39701, 39702, 39704, 39705, 39736, 39740, 39743, 39766

Lowndes Design Temperatures

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

Winter 99% Design Temp
22°F
Summer 1% Design Temp
94°F
Summer Wet Bulb
75°F

IECC Requirements for Zone 3A

Minimum insulation and window requirements for Lowndes per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-30
Floor Insulation:R-19
Window U-Factor:0.32
Window SHGC:0.25

Energy Code: 2021 IECC

Recommended HVAC Equipment for Lowndes

Heating Systems

Gas furnace
Heat pump
Typical AFUE
90-95%

Cooling Systems

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

Related Climate Zone Pages

Learn More About
Climate Zone 3A
View All Zones in
Mississippi
HVAC Permits for
Lowndes, Mississippi

Get Free Manual J Calculations for Lowndes

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Lowndes design temps
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