Verified Climate Data • Zip 19801

HVAC Load Calculator for
Wilmington Homes

Summer Design91°F
Winter Design11°F
Humidity Loadhigh

Step 1: Location Analysis

We verify climate data for your specific Zip Code.

Local Climate Analysis for Wilmington

Wilmington typically experiences summer highs reaching design temperatures of 91°F. Due to high humidity levels in this region, your HVAC system must be sized to handle significant latent load (moisture removal).

📊 Energy Usage Profile

Cooling Demand (CDD)1401

Days you need AC

Heating Demand (HDD)5021

Days you need Heat

⚙️ Technical Factors

Wet Bulb75°F

High humidity load. Dedicated dehumidifier recommended.

Elevation92 ft

No derating needed.

Manual J Tip for DE

Because the design temperature difference (Delta T) in Wilmington is approximately 16°F (Summer) and 59°F (Winter), your system may need to be sized primarily for one extreme season over the other.

Installation Cost in Wilmington

Local labor rates and equipment standards in DE influence the final quote. For a standard 3-ton system changeout in Wilmington, calculate roughly $1,800 - $2,200 per toninstalled, depending on whether you choose a single-stage or variable-speed inverter unit.