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Getting Your Car Ready for a Virginia Winter

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Getting Your Car Ready for a Virginia Winter

To get your car ready for a Virginia winter, check the tires, have the battery tested, fit fresh wiper blades, fill up with winter washer fluid, check the coolant and lights, and pack an emergency kit. Do it before the first freeze, and well before the first snow, when everyone else remembers at once.

When should you winterize your car in Northern Virginia?

As early in the season as you can, because the cold arrives at different times across the region. On average, the first 32°F night comes around October 24 at Dulles and November 18 at Reagan National, and the first hard freeze (28°F) around November 4 and December 3 (NOAA's 1991–2020 normals for Dulles and Reagan National).

So the Dulles side (western Fairfax, Loudoun and Prince William) gets cold weeks before Arlington and Alexandria. These are 50/50 averages, so in about half of years the cold comes sooner. If you haven't done these checks yet, this week is a good time.

The winter car checklist

CheckWhat to look forDo it yourself or book someone
TiresPressure, tread, cracks or bulgesPressure yourself; worn or damaged tires at a tire shop
BatteryAge, slow starts, crusty terminalsHave it tested
Wiper bladesStreaks, chatter, torn rubberYourself, or book car maintenance
Washer fluidA winter-rated fluid, reservoir fullYourself
Coolant (antifreeze)The level, and whether it's rated for the coldHave it checked
LightsEvery bulb working, lenses clearYourself
Heater and defrosterHot air, a windshield that clears quicklyBook if either is weak
Emergency kitSee the list belowYourself

How do you check your tires for winter?

  • Pressure. Tire pressure drops as the air gets colder, so check it on a cold morning before you drive. Use the pressures on the tire placard, usually on the driver's door jamb, or in your owner's manual. The number molded on the tire's sidewall is a maximum, not the setting for your car.
  • Tread. Tires have tread-wear indicator bars molded across the grooves. When the tread is level with them, the tire is worn out. Tread matters more on slush, ice and wet leaves.
  • Damage. Look for cracks in the sidewall, bulges, and nails or screws in the tread.
  • Winter tires? It depends on where and when you have to drive. If you have a steep driveway, or can't stay home on snow days, ask a tire shop whether winter tires make sense for you.

Is your car battery ready for the cold?

Cold weather makes a battery work harder, and a weak one often gives up on the first cold morning. Watch for:

  • an engine that turns over slowly;
  • dim lights while you start the car;
  • a battery warning light on the dashboard;
  • white or green crust on the terminals.

Check the date on the battery's label, too. If it's getting old or showing any of these signs, have it tested before the cold arrives, and replace it if the test says so.

Wipers, washer fluid and lights

  • Wiper blades. Replace blades that streak, skip or chatter. Before an ice storm, lift them off the glass or park so they don't freeze to the windshield. Don't run them on ice: it tears the rubber.
  • Washer fluid. Summer blends can freeze in the lines. Switch to a winter-rated fluid, check the label for the temperature it's rated to, and keep a spare jug in the trunk.
  • Lights. Walk around the car with the lights on, including the brake lights and turn signals. Wipe road grime off the lenses often in winter, because a salty film dims them.

Coolant, heater and defroster

  • Coolant. Check the level only when the engine is cold, and never open a hot radiator cap. Your owner's manual says which coolant your car takes. A shop can test whether it still protects against freezing.
  • Heater and defroster. If the heat is weak or the windshield takes ages to clear, have it checked before you depend on it. A clogged cabin air filter is one common cause of weak airflow, and it's usually a quick fix.

What goes in a winter emergency kit?

Keep these in the car from now until spring:

  • an ice scraper and a snow brush;
  • a small shovel;
  • sand or cat litter for traction if you get stuck;
  • jumper cables;
  • a flashlight with spare batteries;
  • a phone charging cable or a charged power bank;
  • a warm blanket, a hat and gloves;
  • water and a few snacks;
  • a first-aid kit;
  • reflective warning triangles.

Keep the gas tank fuller than you might in summer, too, so you're not running low if you get stuck in traffic in a storm.

What about road salt?

The salt and brine used on winter roads cling to the paint and the underside of the car. Before the season, a thorough wash and a coat of wax or sealant give the paint some protection. Rubber floor mats catch the slush and salt you track in, which saves the carpet. Car washing and detailing can do both before the first storm.

Book the fixes before the first snow

If the checks turn up work, book car maintenance or minor car repair and roadside help with an independent local Pro now, before the first snow fills everyone's schedule.


Last updated September 2026.

Frequently Asked Questions

Follow your owner's manual, which says how long, if at all, your car needs to idle in cold weather. Never run the engine in a closed garage, even with the door partly open, because exhaust contains carbon monoxide.

It's best not to. A sudden temperature change can crack cold glass, and the water can refreeze on the windshield or on the ground where you're standing. Start the defroster and use an ice scraper instead.

There's no set schedule. Washing after roads have been treated gets salt and brine off the paint and underbody before they sit there for weeks, so choose a wash with an underbody rinse. Pick a day warm enough that the doors and locks won't freeze shut afterward.

Jump-start it only the way your owner's manual describes, or call roadside assistance. A battery that has died once is worth testing before the next cold night, since it may be near the end of its life.