Colbert, OK 74731 Frost Dates
Colbert, OK: when does the frost end?
The last spring frost here typically falls around 03/14, about 198 days from today. Fall's first freeze usually shows up around 11/19, roughly 250 days after the last spring frost.
Colbert sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 12 weeks until Colbert's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/14 isn't a guarantee
03/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/01 and only about 1 year in 10 sees frost after that.
Colbert against the rest of the dataset
About 250 days separate Colbert's last and first frost, putting it 7,560 of 40,283 ZIP codes nationally. Within OK, it ranks 2 of 764.
Learn more
Before leaning on 74731's figures: the frost range explains how to read the range around Colbert's dates instead of trusting one, while local microclimates explains what one yard in Colbert can differ from the 74731 normal.