Bondurant, IA 50035 Frost Dates
When can you plant in Bondurant, IA?
Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/15, about 173 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 Bondurant, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Bondurant before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bondurant compares
At roughly 173 frost-free days, Bondurant places 27,817 of 40,283 ZIP codes in this dataset. Within IA, it ranks 257 of 1,042.
Learn more
zone vs. frost date covers why Zone 5b and Bondurant's frost date answer different questions. the frost range covers how to read the range around Bondurant's dates instead of trusting one.