Hollister, OK 73551 Frost Dates
73551, near Hollister, OK: the frost window
The last spring frost here typically falls around 03/26, about 210 days from today. Fall's first freeze usually shows up around 11/10, roughly 229 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hollister in Zone 8a (10 to 15°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
Hollister's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Hollister's last frost
03/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/08 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.
Hollister against the rest of the dataset
Hollister's growing season runs about 229 days, ranking 10,679 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 52 of 764.
Learn more
Two guides worth reading on 73551: the frost range, on how to read the range around Hollister's dates instead of trusting one, and local microclimates, on what one yard in Hollister can differ from the 73551 normal.