Sperry, OK 74130 Frost Dates
Frost dates for Sperry, OK, ZIP 74130
Around 03/31 is the usual last spring frost, about 215 days away. The first fall frost typically arrives around 11/04, about 220 frost-free days later.
Sperry 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 Sperry has about 10 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
03/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/11 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sperry compares
About 220 days separate Sperry's last and first frost, putting it 12,852 of 40,283 ZIP codes nationally. Within OK, it ranks 204 of 764.
Learn more
zone vs. frost date explains why Zone 7b and Sperry's frost date answer different questions, and the frost range explains how to read the range around Sperry's dates instead of trusting one.