Guthrie, OK 73044 Frost Dates
Frost dates for Guthrie, OK, ZIP 73044
The last spring frost here typically falls around 04/03, about 218 days from today. The first fall frost typically arrives around 11/01, about 211 frost-free days later.
The USDA Plant Hardiness Zone Map puts Guthrie in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7b around Guthrie 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
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/17 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 Guthrie compares
About 211 days separate Guthrie's last and first frost, putting it 14,738 of 40,283 ZIP codes nationally. Within OK, it ranks 442 of 764.
Learn more
zone vs. frost date explains why Zone 7b and Guthrie's frost date answer different questions, and the frost range explains how to read the range around Guthrie's dates instead of trusting one.