Norfolk, VA: Climate Zone, Risk and Window Requirements
Local risk and climate data for Norfolk, VA 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 · Virginia Department of Professional and Occupational Regulation, Board for Contractors
3AIECC climate zone · ENERGY STAR South-Central zone
Norfolk's climate zone, in plain terms
Norfolk city's normal precipitation runs about 45.7 inches a year, with 3.0 inches of snow, which is a separate question from energy performance but still shapes which window details matter in Norfolk.
Moisture and glass performance are handled by different parts of a window's spec sheet, and a Norfolk 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 2.8 mi away.
What FEMA's risk data says about Norfolk
FEMA scores Norfolk city's winter-weather risk as Relatively Moderate and its flood risk as Relatively Moderate.
Winter risk in Norfolk 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 Norfolk contractor, not one.
- Hurricane
- Relatively Moderate
- Strong wind
- Relatively Moderate
- 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 Norfolk 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.
Norfolk's longest-licensed window installers
Oldest license first, newest last, pulled directly from the state's file. This list isn't for sale.
- Glass Corporation WTP INCVerify license
- Cardoso Pro Installers LLCVerify license
- Gregory Grundel & David ConleyVerify license