Covefix

When Is the First Freeze in Oklahoma City, OK?

NOAA 1991 to 2020 climate normals · station OKLAHOMA CITY WILL ROGERS AP

Typical first freezeNovember 2
Winterize byOctober 21
Last spring freezeApril 4

Quick Answer

The first freeze in Oklahoma City, OK typically arrives around November 2. There is a 10 percent chance it comes by October 21 and a 90 percent chance it has come by November 17. Finish winterizing outdoor faucets by October 21, and test the furnace by October 7. The average stretch between the last spring freeze and the first fall freeze is 213 days.

Your Oklahoma City winterizing calendar

Every date below is counted back from the earliest realistic freeze, October 21. Work through them in order and the pipes are safe even in an early year. If a date has already passed, do that step this weekend.

By September 23: clear the gutters and seal the gaps

Clean the gutters, caulk the window gaps, and replace a worn door sweep so heat stays in and ice doesn't build at the eaves.

By October 7: test the furnace and swap the filter

Run the heat for ten minutes on a mild day so a dead igniter or a tripped breaker shows up now, not on the first cold night. If it won't start, the furnace checklist covers the free fixes first.

By October 21: pull the hoses and drain the faucets

This is the date that matters. Unscrew every hose, close the indoor shutoff, drain each spigot, and cover it. The full routine is in how to winterize outdoor faucets.

After March 16: reverse it in spring

That is the date by which 90 percent of years have seen their last freeze. Open the indoor shutoff and check the wall behind each spigot for a split pipe before you trust it.

The numbers behind it

Chance a freeze (32°F or lower) has happened byFirst fall freezeLast spring freeze
10 percent (early year)October 21April 20
50 percent (typical year)November 2April 4
90 percent (late year)November 17March 16

Source: NOAA NCEI U.S. Climate Normals 1991 to 2020, station OKLAHOMA CITY WILL ROGERS AP (ID USW00013967, about 1,285 feet). The station is usually the airport, so a hilltop or a river valley across town can freeze a week earlier or later. See how Covefix uses this data.

FAQ

When is the first freeze in Oklahoma City, OK?

The typical first freeze in Oklahoma City, OK falls around November 2. There is a 10 percent chance it arrives by October 21 and a 90 percent chance it has arrived by November 17, based on NOAA 1991 to 2020 climate normals for the OKLAHOMA CITY WILL ROGERS AP station.

When should I winterize outdoor faucets in Oklahoma City?

Finish by October 21. That is the earliest date a freeze has even a 10 percent chance of having already happened in Oklahoma City, so disconnecting hoses, draining the spigots, and fitting covers before then protects the pipes in all but the earliest years.

When is the last frost in Oklahoma City, OK?

The typical last spring freeze in Oklahoma City, OK is around April 4. Wait until after March 16, the 90 percent date, before reversing winterizing steps like re-opening an outdoor shutoff.

Guides for this season

Outdoors & Seasonal

How to Clean Gutters Without Falling Off the Ladder

Clogged gutters dump water at your foundation. Here is the safe ladder setup, the scoop-and-flush method, and the downspout test most people skip.

Time2–4 hrs Cost$0–$60 moderate

Heating & Cooling

How to Replace an HVAC Filter the Right Way

A dirty HVAC filter cuts airflow and raises bills. Find the size, point the arrow toward the unit, and replace it in under 10 minutes today.

Time5–10 min Cost$8–$25 easy

Outdoors & Seasonal

Seal Drafty Windows Before the First Cold Snap

Find the leak with a smoking incense stick, then match the fix to the gap. And never caulk the weep holes at the bottom of a vinyl window frame.

Time30 min–2 hrs Cost$10–$45 easy

Nearby and similar cities

Tulsa, OKKnoxville, TNCharlotte, NCNashville, TNAlbuquerque, NMRaleigh, NC All cities