Lincoln, Washington HVAC Climate Zone

Lincoln is located in IECC Climate Zone 5B (Cool - Dry). Get accurate Manual J load calculations with official design temperatures for Lincoln.

Climate Zone
5B
Winter Design
-7°F
Summer Design
91°F
ZIP Codes
10

Lincoln HVAC Contractors: Get Your Free Manual J Report

Climate Zone 5B requires precise load calculations. Upload your Lincoln blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Lincoln's exact design temperatures (-7°F winter / 91°F summer).

Claim Free Report
No credit card required

Verify Your Lincoln ZIP Code

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

Lincoln covers 10 ZIP codes: 99008, 99029, 99032, 99103, 99117, 99122, 99134, 99154, 99159, 99185

Lincoln Design Temperatures

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

Winter 99% Design Temp
-7°F
Summer 1% Design Temp
91°F
Summer Wet Bulb
63°F

IECC Requirements for Zone 5B

Minimum insulation and window requirements for Lincoln 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 Lincoln

Heating Systems

Gas furnace (95%+ AFUE)
Typical AFUE
95-98%

Cooling Systems

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

Get Free Manual J Calculations for Lincoln

Upload your Lincoln blueprint and get a professional Manual J load calculation using official Zone 5B design temperatures. First report is FREE.

Lincoln design temps
Zone 5B compliant
Ready in 60 seconds
Upload Blueprint → Get Free Report

Join 10,000+ Lincoln contractors who trust AutoHVAC