Window Climate Specs for Mammoth Lakes, CA
ENERGY STAR groups Mono County into its North-Central zone, which is the U-factor and SHGC target worth checking against any quote you get in Mammoth Lakes. The longest-licensed window contractors based in Mammoth Lakes are listed below the climate data.
Licenses checked · California Contractors State License Board
6BIECC climate zone · ENERGY STAR North-Central zone
Mammoth Lakes's climate zone, in plain terms
Moisture and glass performance are handled by different parts of a window's spec sheet, and a Mammoth Lakes buyer benefits from checking both instead of assuming one implies the other.
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 2.2 mi away.
What FEMA's risk data says about Mammoth Lakes
Neither rating changes a window's energy label, but both are exactly what impact-resistance and design-pressure ratings are built to answer for a Mammoth Lakes home.
Ask specifically about design pressure and impact rating for Mammoth Lakes, not just energy performance, if either risk rating comes back on the high side.
- Strong wind
- Very Low
- Winter weather
- Relatively Moderate
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Mammoth Lakes 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.
Mammoth Lakes's longest-licensed window installers
Oldest license first, newest last, pulled directly from the state's file. This list isn't for sale.
- Country Glass INCVerify license
- Mammoth Screens And GlassVerify license
- Jordan Construction INCVerify license