FrostList — Local Winter Prep Deadlines

Winterizing advice usually says "before the first freeze" — but that date lands weeks apart from city to city. FrostList pins nine winter jobs to your city's own NOAA 1991–2020 freeze and snowfall normals, then layers a live 10-day outlook on top. Search your city or pick a task to see local deadlines and checklists.

Snow-blanketed American home after the season’s first storm — FrostList pins every winter-prep deadline to your city’s NOAA freeze data — Photo: Unsplash

984US cities covered

9Winter jobs dated

51States + DC

1991–2020NOAA normals

Find your city's freeze dates

Search 984 US cities

Or open the full first-freeze lookup tool.

Nine local deadlines

Lawn sprinkler spraying water in low sunlight — blow out irrigation lines before the first hard freeze

Sprinkler Winterization

Blow-out and drain-down deadlines built from each city's first hard-freeze normals.

Frozen outdoor pipe with a thick icicle after a hard freeze — protect plumbing before freezing nights arrive

Frozen Pipe Protection

When freezing nights arrive locally, and how cold it takes to put pipes at risk.

Icicles forming along a snowy roof edge — an early warning sign of ice dams backing water under the shingles

Ice Dam Prevention

Attic and roof-edge prep timed to each city's snow season and thaw-freeze swings.

Frost-covered car with headlights on during a freezing morning — cold weather exposes weak car batteries

Car Battery Cold-Start

When the first hard cold arrives locally, so a weak battery does not strand you.

Homeowner clearing a snowy driveway with a two-stage snow blower after the first plowable snowfall

Snow Blower Prep

A prep deadline set three weeks ahead of each city's first plowable snow.

Meltwater and rain streaming off a roof edge — spring thaw is when a working sump pump earns its keep

Sump Pump Test

Test windows keyed to spring thaw and the local rainy season.

Motorhome parked on a snowy street in falling snow — drain and antifreeze the water system before the first hard freeze

RV Winterization

Drain-and-antifreeze deadlines from each city's first hard-freeze normals.

Covered boat locked in ice beside a dock on a frozen lake — winterize the engine before the first hard freeze catches it in the water

Boat Winterization

Haul-out timing before the first freeze — including surprise freezes in warm states.

Touring motorcycle caught outside under a blanket of snow — put the bike into proper storage before riding season closes

Motorcycle Storage

Layup timing as riding season closes, plus the spring roll-out alert.

How it works

Every date comes from the nearest NOAA weather station with valid freeze data — never guessed. We show the early, median, and late freeze dates so you can plan to your own risk tolerance.

A live forecast then flips each task's status to urgent when a freeze, snow, or heavy rain is actually coming. It all works without JavaScript; the live layer just adds to it.

Why local timing pays: the key numbers

Verified national benchmarks; sources open in a new tab (nofollow).

$15,400

Average US insurance claim for water damage and freezing — the second most common homeowners claim. Local timing is the cheapest prevention there is.

Insurance Information Institute

20°F

The outdoor temperature at which unprotected pipes start freezing, per University of Illinois field research — often weeks after the first light frost.

University of Illinois

75%+

Share of boat freeze claims that are cracked engine blocks — and warm-state boaters in Texas file the most, because "before the first freeze" surprises them.

BoatUS

−60%

Cranking power a car battery loses at 0°F. Cold does not create battery problems — it exposes weak batteries on the first hard morning.

AAA

One site for every "when should I…" winter search

FrostList covers the searches homeowners actually make each fall: when to winterize sprinklers, at what temperature pipes freeze, how to prevent ice dams, snow blower tune-up costs, sump pump testing, and winter storage for RVs, boats and motorcycles — all pinned to your city’s own NOAA freeze normals.

first freeze date by citywinterization checklistsprinkler blowout costpipe freeze temperatureice dam preventionsnow blower tune upsump pump battery backupRV antifreeze gallonsboat engine freeze damagemotorcycle battery tenderhard freeze vs light frostNOAA climate normals

Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 25, 2026.