Window Climate Specs for Camano Island, WA
ENERGY STAR groups Island County into its Northern zone, which is the U-factor and SHGC target worth checking against any quote you get in Camano Island. The longest-licensed window contractors based in Camano Island are listed below the climate data.
Licenses checked · Washington State Department of Labor & Industries
5CIECC climate zone · ENERGY STAR Northern zone
What zone 5C means for a Camano Island window
Oak Harbor, WA runs a January average near 40°F and climbs to about 61°F by July, a swing that adds up to roughly 5,402 heating degree days most winters, with 22 on the summer cooling side of the ledger.
That load is the actual argument for paying up for a better U-factor in Camano Island, separate from anything a brochure claims.
Zone 5C's requirement is the floor; Camano Island's specific load is what tells you whether beating that floor is worth the extra cost.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 9.3 mi away.
Storm and weather risk around Camano Island
FEMA scores Island County's winter-weather risk as Relatively Low and its flood risk as Relatively Low.
Winter risk in Camano Island weighs on U-factor and condensation resistance; flood risk weighs more on sill height and drainage detailing than on the glass package.
Treat these as two separate conversations with a Camano Island contractor, not one.
- Strong wind
- Very Low
- Winter weather
- Relatively Low
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Camano Island window bids come in
- How to Read an NFRC Window Label Four numbers on one sticker decide most of a window's real-world performance. Here's what each one means.
- ENERGY STAR Window Criteria by Climate Zone ENERGY STAR splits the country into four zones, each with its own numbers. Here they are, and why the Northern zone works backward from the other three.
- Impact Windows vs. Shutters in Florida's Hurricane Zones Florida gives homeowners two paths to a protected opening. Here's how each one is tested, and where the HVHZ raises the bar further.
Window installers with the longest license records in Camano Island
Oldest license first, newest last, pulled directly from the state's file. This list isn't for sale.
- Window KingVerify license
- Revisionary GlassworksVerify license
- Camano Island Window CLNG LLCVerify license