FrostList

When to Winterize Your RV in Broken Arrow, OK

ON TRACK121 days until first 28°F freezeNov 9

Broken Arrow's deadline to winterize your RV is October 30: the local first 28°F freeze runs November 9 on average and October 26 at its earliest (1991–2020 normals). The early-to-late range spans roughly 32 days, so treat the median as a midpoint, not a promise.

OUTLOOK

Typical first first 28°F freeze near Nov 9; local deadline about Oct 30. The live 10-day outlook loads here.

Local freeze dates for Broken Arrow

ThresholdEarly (1-in-10)MedianLate (9-in-10)
32°F (light freeze)Oct 16Nov 1Nov 13
28°F (hard freeze)Oct 26Nov 9Nov 27
24°F (severe)Nov 2Nov 20Dec 7

NOAA station: Bixby · 7.2 mi away · 605 ft elevation.

For Broken Arrow, the nearest NOAA station with freeze data is Bixby, 7.2 miles out at 605 feet. Median first-freeze dates there run 32°F by Nov 1, 28°F by Nov 9, 24°F by Nov 20. That hard freeze has landed anywhere from Oct 26 to Nov 27, a swing of roughly 32 days. Spring's last 32°F freeze clears around Apr 1. Snowfall averages 9 inches a year, first reaching an inch near December.

Broken Arrow usually sees its first 32°F night about Nov 1, with the first 28°F hard freeze close behind near Nov 9. The 32°F date swings from Oct 16 at its earliest to Nov 13 at its latest, near 28 days. The last spring freeze averages Apr 1 and as late as Apr 20, which sets the safe window for reopening outdoor water and de-winterizing gear. At about 9 inches of snow a year, the freeze — not snow load — is the thing to plan around.

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, Broken Arrow (first freeze Nov 9) runs about a week ahead of Tulsa (Nov 13) and close to Muskogee (Nov 8). Across Oklahoma, local prep deadlines in our data range from Oct 29 to Nov 4, so a statewide rule of thumb would miss Broken Arrow by weeks. In Broken Arrow, that same cold is your cue to shut down your sprinklers and winterize a boat.

Other winter jobs in Broken Arrow

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

Sprinklers → Oct 30Frozen pipes → Oct 16Ice dams → Nov 15Car battery → Nov 9Snow blower → Nov 24Sump pump → Apr 1Boat → Nov 2Motorcycle → Nov 1

See the full Broken Arrow 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 Broken Arrow?
Wait until the last spring freeze has passed, which averages near Apr 1 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 Bixby, live outlook by Open-Meteo. Sources · Methodology. Last updated: July 11, 2026.