The House Year · state by state
Washington
39 counties in the data · Zones 6a–9a · ~25–173 freezing days a year
What Washington does to a house
A state is a big place — these are the ranges, not averages. The county pages pin the numbers down.
- Climate
- Zones 6a–9a. Freezing days run from ~25 to ~173 a year depending on the county.
- First freeze
- Usually lands anywhere from September 21 to November 18 depending on the county.
- The air
- Runs from dry to humid, county by county.
- The load
- Heating season rules the calendar in most of the state.
- Termites
- Light pressure as a state band.
- Radon
- EPA Zone 2 — the middle band — statewide. A one-time test settles it either way.
- Labor
- Labor sits near one level statewide — every price band on this site adjusts to the county anyway.
County pages in Washington
- Clark CountyZone 8b · ~45 freeze days
- King CountyZone 8b · ~25 freeze days
- Kitsap CountyZone 9a · ~30 freeze days
- Pierce CountyZone 8b · ~54 freeze days
- Snohomish CountyZone 8b · ~60 freeze days
- Spokane CountyZone 6b · ~157 freeze days
- Thurston CountyZone 8b · ~69 freeze days
- Whatcom CountyZone 8a · ~58 freeze days
- Yakima CountyZone 7a · ~139 freeze days
All 39 Washington counties are in the data.The rest of the country →
A state is a big place.
This page is the wide shot. Your county narrows it, and the app builds the year for your exact house — your dates, your prices, your reminders.
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