Olds, IA 52652 Frost Dates
Frost dates for Olds, IA, ZIP 52652
Typically, the last spring freeze lands around 04/30, roughly 245 days out. The first fall frost typically arrives around 10/10, about 163 frost-free days later.
Zone 5b (-15 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 Olds, not a forecast for this year.
What to do before the first frost
Zone 5b around Olds has about 6 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.
The actual range around Olds's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Olds compares
Olds's growing season runs about 163 days, ranking 31,545 of 40,283 US ZIP codes measured here, longest to shortest. Within IA, it ranks 681 of 1,042.
Learn more
local microclimates explains what one yard in Olds can differ from the 52652 normal, and zone vs. frost date explains why Zone 5b and Olds's frost date answer different questions.