Colbert, OK 74753 Frost Dates
Colbert, OK: when does the frost end?
Around 03/19 is the usual last spring frost, about 203 days away. Fall's first freeze usually shows up around 11/12, roughly 237 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 11 weeks until Colbert's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/07 and only about 1 year in 10 sees frost after that.
Colbert against the rest of the dataset
At roughly 237 frost-free days, Colbert places 9,136 of 40,283 ZIP codes in this dataset. Within OK, it ranks 11 of 764.
Learn more
Before leaning on 74753'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 74753 normal.