Oklahoma frost dates by county and ZIP code
Across 664 Oklahoma ZIP codes the average last spring frost runs Mar 14 to Apr 26 and the average first fall frost Oct 17 to Nov 19 (50% odds, 32°F, NOAA 1991–2020 normals), with USDA hardiness zones. Download the table as CSV.
Plants for Oklahoma
Oklahoma's university or garden plant program: Oklahoma Proven, with a link to the official list. Not affiliated. All state plant programs.
Counties
- Adair
- Alfalfa
- Atoka
- Beaver
- Beckham
- Blaine
- Bryan
- Caddo
- Canadian
- Carter
- Cherokee
- Choctaw
- Cimarron
- Cleveland
- Coal
- Comanche
- Cotton
- Craig
- Creek
- Custer
- Delaware
- Dewey
- Ellis
- Garfield
- Garvin
- Grady
- Grant
- Greer
- Harmon
- Harper
- Haskell
- Hughes
- Jackson
- Jefferson
- Johnston
- Kay
- Kingfisher
- Kiowa
- Latimer
- Le Flore
- Lincoln
- Logan
- Love
- Major
- Marshall
- Mayes
- McClain
- McCurtain
- McIntosh
- Murray
- Muskogee
- Noble
- Nowata
- Okfuskee
- Oklahoma
- Okmulgee
- Osage
- Ottawa
- Pawnee
- Payne
- Pittsburg
- Pontotoc
- Pottawatomie
- Pushmataha
- Roger Mills
- Rogers
- Seminole
- Sequoyah
- Stephens
- Texas
- Tillman
- Tulsa
- Wagoner
- Washington
- Washita
- Woods
- Woodward
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
Freeze alerts Soil-temp heads-up Weekly yard to-dos
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.