Sand Springs, OK 74149 Frost Dates
Frost dates for Sand Springs, OK, ZIP 74149
Around 03/30 is the usual last spring frost, about 214 days away. The first fall frost typically arrives around 11/04, about 220 frost-free days later.
The USDA Plant Hardiness Zone Map puts Sand Springs 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 Sand Springs 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 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/10 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sand Springs compares
At roughly 220 frost-free days, Sand Springs places 12,735 of 40,283 ZIP codes in this dataset. Within OK, it ranks 177 of 764.
Learn more
local microclimates explains what one yard in Sand Springs can differ from the 74149 normal, and zone vs. frost date explains why Zone 7b and Sand Springs's frost date answer different questions.