Custer City, OK 73639 Frost Dates
When can you plant in Custer City, OK?
Around 04/08 is the usual last spring frost, about 223 days away. The first fall frost typically arrives around 11/01, about 204 frost-free days later.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Custer City, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Custer City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Custer City's last frost
04/08 is the middle of 30 years of NOAA records, not a promise. Plant by 03/21 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 Custer City compares
About 204 days separate Custer City's last and first frost, putting it 16,745 of 40,283 ZIP codes nationally. Within OK, it ranks 607 of 764.
Learn more
zone vs. frost date covers why Zone 7b and Custer City's frost date answer different questions. the frost range covers how to read the range around Custer City's dates instead of trusting one.