Fletcher, OK 73541 Frost Dates
Fletcher, OK: when does the frost end?
Around 03/26 is the usual last spring frost, about 210 days away. Fall's first freeze usually shows up around 11/07, roughly 225 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Fletcher in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 10 weeks until Fletcher's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/26 isn't a guarantee
03/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/14 and only about 1 year in 10 sees frost after that.
Fletcher against the rest of the dataset
About 225 days separate Fletcher's last and first frost, putting it 11,442 of 40,283 ZIP codes nationally. Within OK, it ranks 87 of 764.
Learn more
Before leaning on 73541's figures: local microclimates explains what one yard in Fletcher can differ from the 73541 normal, while zone vs. frost date explains why Zone 7b and Fletcher's frost date answer different questions.