Bethany, OK 73127 Frost Dates
73127, near Bethany, OK: the frost window
The last spring frost here typically falls around 04/02, about 217 days from today. Fall's first freeze usually shows up around 11/04, roughly 216 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Bethany 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
Bethany's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/02 isn't a guarantee
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Bethany against the rest of the dataset
At roughly 216 frost-free days, Bethany places 13,737 of 40,283 ZIP codes in this dataset. Within OK, it ranks 309 of 764.
Learn more
Two guides worth reading on 73127: local microclimates, on what one yard in Bethany can differ from the 73127 normal, and zone vs. frost date, on why Zone 7b and Bethany's frost date answer different questions.