Snohomish County's marine climate means winter here looks different from colder inland regions, less about hard freezes and more about sustained rain, rising groundwater, and the occasional cold snap that catches an unprepared system off guard. A short seasonal checklist meaningfully reduces the odds of an emergency call during the worst weeks of the year.
Test Your Sump Pump Now, Not During the First Storm
Pour a bucket of water into the sump basin and confirm the pump activates, moves water through the discharge line, and shuts off correctly. A pump that's been sitting idle since last spring can fail silently, and the first real test shouldn't be during an actual storm. See our sump pump installation & repair page if the test reveals a problem.
Check Downspouts and Grading
Confirm downspouts discharge at least 5-6 feet from the foundation, and check that yard grading slopes away from the house, especially if any landscaping work happened over the summer. This is one of the most overlooked and easiest-to-fix contributors to winter basement flooding.
Insulate Exposed Pipes in Unheated Spaces
Everett does see freezing nights, and a pipe running through an uninsulated crawlspace or exterior wall is at real risk during cold snaps. Basic foam pipe insulation, available at any hardware store, is an inexpensive way to reduce that risk on exposed sections. Foam sleeves cost only a few dollars per section and take about ten minutes to install on an average crawlspace run.
Know Where Your Main Shutoff Valve Is
This matters every season, but it matters most in winter when a burst pipe is more likely. If you don't already know where your main water shutoff is, find it now, before an emergency, not during one. See our burst pipe repair page for the full first-response sequence if a pipe does fail.
Consider a Basement Waterproofing Assessment If You Have a History
If your basement or crawlspace has flooded in a previous winter, scheduling a real drainage assessment before this season starts is far more useful than repeating the same emergency cleanup again. See our basement waterproofing page for what that assessment actually covers.
The Bottom Line
None of these steps take more than an hour combined, and together they address the specific failure points, sump pumps, drainage, exposed pipe, and unknown shutoff locations, that actually cause most winter plumbing emergencies in this area.
Check Your Water Heater Before the Heavy-Use Season
Winter puts extra demand on a water heater as households use more hot water for longer showers and washing. If your unit has been showing early warning signs, rumbling sounds, reduced hot water volume, or it's simply never been flushed, addressing it before winter demand peaks avoids losing hot water during the coldest, least convenient stretch of the year. See our water heater repair page if you're noticing any of these signs already.
Test Your Backflow Device If You Have One
If your property has an irrigation system with a backflow prevention device, confirm it's been properly winterized if you're shutting the system down for the season, and that annual testing is current heading into the wetter months.
See our backflow testing & prevention page for what this involves, and note that a device winterized incorrectly can crack over a hard freeze even if the rest of your plumbing is fine. A cracked backflow device over winter is a common, avoidable spring surprise that a five-minute check in the fall prevents entirely.
Building This Into an Annual Habit
The homeowners who avoid winter plumbing emergencies most consistently aren't the ones with the newest systems, they're the ones who run through the same short checklist every year around the same time, regardless of whether last winter was uneventful. Tying it to another seasonal task you already do, changing furnace filters or testing smoke detectors, makes it easier to remember consistently rather than relying on remembering it cold each fall.
What to Do If You're Already Behind
If the rainy season has already started and you haven't done any of this yet, it's still worth working through the list now rather than waiting until next year. A late sump pump test still catches a failing unit before the worst storm of the season, and late grading fixes still reduce risk for whatever rain is still coming.
Being a month behind schedule is better than not checking at all. The goal is reducing risk for whatever portion of the season remains, not achieving a perfect record.
Everett Freeze Data and City Guidance
NOAA's 1991-2020 normals for the Everett Snohomish County Airport station show about 29 days a year with lows at or below 32°F. December has about 8 of them, January about 7 and February about 7. The January average low is 36.6°F.
The City of Everett's frozen pipe guidance is to insulate pipes in unheated spaces and to locate your water meter before the snow arrives. For homes near Marysville or Lake Stevens, the same prep applies. If a pipe does burst, see our burst pipe repair page.
Sources: NOAA 1991-2020 climate normals (Everett Snohomish County Airport, USW00024222), City of Everett frozen pipe brochure.
Quick Answers
Do I need to winterize outdoor spigots here?
Yes, disconnect hoses and consider an insulated cover, especially for spigots on north-facing exterior walls.
Should I have my furnace and water heater serviced together?
It's convenient to schedule both at once, since a technician visiting for one can often flag issues with the other.
Does homeowner's insurance require any of this?
Not typically as a policy condition, though following it reduces the odds of filing a claim in the first place.
How cold does it actually get in Everett?
NOAA's 1991-2020 normals for the Everett Snohomish County Airport station show about 29 days a year with lows at or below 32°F, mostly from November through March. Brief cold snaps are normal and worth planning for.
Should I leave a faucet dripping during a cold snap?
For exposed or previously problematic pipes, yes, a slow drip reduces freeze risk during the coldest nights, since moving water resists freezing better than standing water in the same pipe. This is a short-term measure for a specific cold night, not a substitute for insulating exposed pipe properly.
When should I locate my water meter and insulate pipes in Everett?
Before the first cold snap. The City of Everett's frozen pipe guidance says to insulate pipes in unheated spaces and to locate your meter before snow arrives, so you are not searching for it under frozen ground cover.