Bennington, OK 74723 Frost Dates
Bennington, OK: when does the frost end?
Typically, the last spring freeze lands around 03/19, roughly 203 days out. Fall's first freeze usually shows up around 11/12, roughly 237 days after the last spring frost.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Bennington, not a forecast for this year.
Stretching the season past the first frost
With roughly 11 weeks until Bennington's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/19 isn't a guarantee
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.
Bennington against the rest of the dataset
At roughly 237 frost-free days, Bennington places 9,162 of 40,283 ZIP codes in this dataset. Within OK, it ranks 17 of 764.
Learn more
Before leaning on 74723's figures: zone vs. frost date explains why Zone 8a and Bennington's frost date answer different questions, while the frost range explains how to read the range around Bennington's dates instead of trusting one.