Valley Brook, OK 73139 Frost Dates
Frost dates for Valley Brook, OK, ZIP 73139
Around 04/04 is the usual last spring frost, about 219 days away. The first fall frost typically arrives around 11/02, about 213 frost-free days later.
Valley Brook sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 7b around Valley Brook has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/16 and you're betting against frost in roughly 9 years out of 10. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Valley Brook compares
About 213 days separate Valley Brook's last and first frost, putting it 14,532 of 40,283 ZIP codes nationally. Within OK, it ranks 405 of 764.
Learn more
zone vs. frost date explains why Zone 7b and Valley Brook's frost date answer different questions, and the frost range explains how to read the range around Valley Brook's dates instead of trusting one.