FrostDateCheck

Valley Brook, OK 73149 Frost Dates

73149, near Valley Brook, OK: the frost window

Zone 7b

Typically, the last spring freeze lands around 04/04, roughly 219 days out. Fall's first freeze usually shows up around 11/02, roughly 213 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Valley Brook 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

Valley Brook's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

How much risk comes with planting early here

04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.

Valley Brook against the rest of the dataset

Valley Brook's growing season runs about 213 days, ranking 14,533 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 406 of 764.

Learn more

Two guides worth reading on 73149: zone vs. frost date, on why Zone 7b and Valley Brook's frost date answer different questions, and the frost range, on how to read the range around Valley Brook's dates instead of trusting one.