Byars, OK 74831 Frost Dates
Frost dates for Byars, OK, ZIP 74831
Around 04/04 is the usual last spring frost, about 219 days away. The first fall frost typically arrives around 11/02, about 210 frost-free days later.
Byars 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 Byars 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.
Why 04/04 isn't a guarantee
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/18 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Byars compares
Byars's growing season runs about 210 days, ranking 15,121 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 489 of 764.
Learn more
zone vs. frost date explains why Zone 7b and Byars's frost date answer different questions, and the frost range explains how to read the range around Byars's dates instead of trusting one.