FrostList

When to Winterize Your RV in Baton Rouge, LA

ON TRACK153 days until first 28°F freezeDec 11

In a typical year, winterize your RV in Baton Rouge by December 1. The median first 28°F hard freeze at Baton Rouge's NOAA station is December 11 (1991–2020 normals); one year in ten it arrives as early as November 19. It's a short step from frost to a hard freeze: roughly 15 days on average.

OUTLOOK

Typical first first 28°F freeze near Dec 11; local deadline about Dec 1. The live 10-day outlook loads here.

Local freeze dates for Baton Rouge

ThresholdEarly (1-in-10)MedianLate (9-in-10)
32°F (light freeze)Nov 7Nov 26Dec 19
28°F (hard freeze)Nov 19Dec 11Jan 18
24°F (severe)Dec 4Jan 2Feb 3

NOAA station: Baton Rouge Ryan AP · 5.5 mi away · 64 ft elevation.

Numbers for Baton Rouge come from Baton Rouge Ryan AP, 5.5 miles away at 64 feet, where the medians fall 32°F by Nov 26, 28°F by Dec 11, 24°F by Jan 2. That hard freeze has landed anywhere from Nov 19 to Jan 18, a swing of roughly 60 days. Spring's last 32°F freeze clears around Feb 25. Snowfall averages 0 inches a year.

Expect the first frost near Nov 26 in Baton Rouge and the first hard freeze by about Dec 11. Year to year, the first 32°F night has fallen anywhere from Nov 7 to Dec 19 — about 42 days apart. Spring's final freeze lands near Feb 25 and as late as Mar 19, so that is when outdoor water and stored gear can safely come back online. Measurable snow is rare, so the freeze near Feb 25 — not snow load — drives the local prep list.

Your rv checklist

  1. Drain the fresh, gray, and black tanks, then drain the water heater only after it has cooled and lost pressure.
  2. Bypass the water heater so you do not waste six gallons of antifreeze filling the tank.
  3. Blow out the lines with a compressor at about 30–40 psi, then pump non-toxic RV antifreeze through every faucet until it runs pink.
    Helpful gear: RV antifreeze (6-pack) — Recommended pick
  4. Use a water-pump converter kit to draw antifreeze straight from the jug through the plumbing.
    Helpful gear: Water pump converter kit — Recommended pick
  5. Pour a cup of antifreeze into each drain trap and the toilet to protect the seals.
  6. Fit a blow-out plug at the city-water inlet so you can clear that line too.
    Helpful gear: Blow-out plug — Recommended pick
  7. Remove batteries or put them on a maintainer, and store them off a cold concrete floor.
  8. Cover roof vents, close the propane, and set out traps or deterrents so mice do not move in.

What to have on hand

RV antifreeze (6-pack)
Non-toxic pink fluid for the fresh-water plumbing and traps.
Recommended pick
Water pump converter kit
Siphon kit that draws antifreeze straight through the pump.
Recommended pick
Blow-out plug
Adapter that lets a compressor clear the lines before antifreeze.
Recommended pick
Heated fresh-water hose
For anyone staying hooked up through a cold snap.
Recommended pick

What this means locally

Against its neighbors, Baton Rouge (first freeze Dec 11) runs about a week ahead of Lafayette (Dec 30) and later than Kenner (Jan 7). Across Louisiana, local prep deadlines in our data range from Nov 19 to Dec 29, so a statewide rule of thumb would miss Baton Rouge by weeks. In Baton Rouge, that same cold is your cue to shut down your sprinklers and winterize a boat.

Other winter jobs in Baton Rouge

Every task below is dated to Baton Rouge's own freeze and snow normals.

Sprinklers → Dec 1Frozen pipes → Nov 7Car battery → Dec 11Sump pump → Feb 25Boat → Dec 4Motorcycle → Nov 26

See the full Baton Rouge winter checklist, in order →

Frequently asked questions

At what temperature do RV pipes freeze?
An RV's exposed plumbing and thin-walled tanks can begin to freeze once temperatures sit in the mid-20s for a few hours, sooner than a house because there is little insulation around the lines. That is why the winterizing deadline tracks the first 28°F freeze rather than the first light frost.
How much RV antifreeze do I need?
Most travel trailers and motorhomes take about two to three gallons of non-toxic RV antifreeze, and larger rigs more. Bypassing the water heater saves roughly six gallons you would otherwise waste filling the tank. Buy an extra jug; stores sell out once the first freeze warnings hit.
Can I just use my RV furnace instead of winterizing?
Relying on the furnace is risky. A propane run-out, a tripped breaker, or a dead battery during a cold night leaves the plumbing unprotected, and the furnace may not keep the underbelly and bays warm enough anyway. Draining and adding antifreeze is the dependable way to protect the system.
How do I winterize an RV water heater?
Let the tank cool and lose pressure, then drain it and, if fitted, pull the anode rod. Do not add antifreeze to the water heater tank; instead, set the bypass valves so antifreeze skips the tank and fills only the lines. Fresh antifreeze in an unbypassed heater just wastes several gallons.
When is it safe to de-winterize an RV in Baton Rouge?
Wait until the last spring freeze has passed, which averages near Feb 25 here. De-winterize by flushing the antifreeze from the lines, sanitizing the fresh tank, and checking for leaks before a trip. Reopening too early risks a surprise late freeze on a charged system.
Do I need to winterize an RV stored indoors?
A reliably heated indoor space that stays above freezing protects the plumbing, so full winterizing may not be needed. But an unheated garage or barn can still drop below freezing on a cold night. If you cannot guarantee the space stays warm, winterize to be safe.

Data: NOAA 1991–2020 normals via Baton Rouge Ryan AP, live outlook by Open-Meteo. Sources · Methodology. Last updated: July 11, 2026.