Elmer, OK 73539 Frost Dates
Frost dates for Elmer, OK, ZIP 73539
Typically, the last spring freeze lands around 04/03, roughly 218 days out. The first fall frost typically arrives around 11/04, about 214 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 Elmer, not a forecast for this year.
What to do before the first frost
Zone 7b around Elmer 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.
Why 04/03 isn't a guarantee
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/15 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Elmer compares
At roughly 214 frost-free days, Elmer places 14,397 of 40,283 ZIP codes in this dataset. Within OK, it ranks 387 of 764.
Learn more
zone vs. frost date explains why Zone 7b and Elmer's frost date answer different questions, and the frost range explains how to read the range around Elmer's dates instead of trusting one.