What Ukiah Homes Need From a Replacement Window
Local risk and climate data for Ukiah, CA are below, translated into plain terms for a window buyer rather than left as raw codes. Use it to check a proposed spec before you sign, not just to browse.
Licenses checked · California Contractors State License Board
3CIECC climate zone · ENERGY STAR South-Central zone
Ukiah's climate zone, in plain terms
Mendocino County's normal precipitation runs about 38.9 inches a year, with 0.0 inches of snow, which is a separate question from energy performance but still shapes which window details matter in Ukiah.
Moisture and glass performance are handled by different parts of a window's spec sheet, and a Ukiah 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 0.2 mi away.
What FEMA's risk data says about Ukiah
FEMA scores Mendocino County's winter-weather risk as Very Low and its flood risk as Relatively High.
Winter risk in Ukiah 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 Ukiah contractor, not one.
- Strong wind
- Very Low
- Winter weather
- Very Low
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Ukiah 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.
Ukiah's longest-licensed window installers
Oldest license first, newest last, pulled directly from the state's file. This list isn't for sale.
- North Coast Energy Services IncorporatedVerify license
- Ukiah Round Tree Glass INCVerify license
- Bryan's Glass INCVerify license