FrostList

When to Winterize Your RV in Bryan, TX

ON TRACK160 days until first 28°F freezeDec 18

Bryan's median first 28°F hard freeze is December 18 (1991–2020 NOAA normals), and it can strike as early as November 23 — so winterize your RV in Bryan by December 8. The early-odds date runs roughly 25 days ahead of the median, so build in that buffer.

OUTLOOK

Typical first first 28°F freeze near Dec 18; local deadline about Dec 8. The live 10-day outlook loads here.

Local freeze dates for Bryan

ThresholdEarly (1-in-10)MedianLate (9-in-10)
32°F (light freeze)Nov 10Nov 30Dec 26
28°F (hard freeze)Nov 23Dec 18Jan 22
24°F (severe)Dec 5Jan 3Feb 12

NOAA station: College Stn · 5.9 mi away · 305 ft elevation.

For Bryan, the nearest NOAA station with freeze data is College Stn, 5.9 miles out at 305 feet. Median first-freeze dates there run 32°F by Nov 30, 28°F by Dec 18, 24°F by Jan 3. Year to year the 28°F date has ranged from Nov 23 to Jan 22 — about 60 days apart. Spring's last 32°F freeze clears around Feb 27.

The freeze arrives in two steps in Bryan: 32°F around Nov 30, then a hard 28°F near Dec 18. The 32°F date swings from Nov 10 at its earliest to Dec 26 at its latest, near 46 days. The last spring freeze averages Feb 27 and as late as Mar 18, which sets the safe window for reopening outdoor water and de-winterizing gear. Snow barely registers here; the freeze date, around Feb 27, is the one that matters.

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, Bryan (first freeze Dec 18) runs close to College Station (Dec 18) and later than Huntsville (Dec 13). Across Texas, local prep deadlines in our data range from Oct 27 to Dec 29, so a statewide rule of thumb would miss Bryan by weeks. In Bryan, that same cold is your cue to shut down your sprinklers and winterize a boat.

Other winter jobs in Bryan

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

Sprinklers → Dec 8Frozen pipes → Nov 10Car battery → Dec 18Sump pump → Feb 27Boat → Dec 11Motorcycle → Nov 30

See the full Bryan 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 Bryan?
Wait until the last spring freeze has passed, which averages near Feb 27 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 College Stn, live outlook by Open-Meteo. Sources · Methodology. Last updated: July 11, 2026.