Morris, OK 74445 Frost Dates
Frost dates for Morris, OK, ZIP 74445
Around 04/01 is the usual last spring frost, about 216 days away. The first fall frost typically arrives around 11/01, about 212 frost-free days later.
Morris 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 Morris 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 04/01 isn't a guarantee
04/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/12 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 Morris compares
About 212 days separate Morris's last and first frost, putting it 14,624 of 40,283 ZIP codes nationally. Within OK, it ranks 427 of 764.
Learn more
local microclimates explains what one yard in Morris can differ from the 74445 normal, and zone vs. frost date explains why Zone 7b and Morris's frost date answer different questions.