Welch, OK 74369 Frost Dates
Frost dates for Welch, OK, ZIP 74369
Typically, the last spring freeze lands around 04/06, roughly 221 days out. The first fall frost typically arrives around 10/27, about 203 frost-free days later.
Welch sits in USDA Zone 7a (0 to 5°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 7a around Welch 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.
The actual range around Welch's last frost
04/06 is the middle of 30 years of NOAA records, not a promise. Plant by 03/20 and you're betting against frost in roughly 9 years out of 10. 04/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Welch compares
About 203 days separate Welch's last and first frost, putting it 17,011 of 40,283 ZIP codes nationally. Within OK, it ranks 631 of 764.
Learn more
local microclimates explains what one yard in Welch can differ from the 74369 normal, and zone vs. frost date explains why Zone 7a and Welch's frost date answer different questions.