Deloit, IA 51441 Frost Dates
When can you plant in Deloit, IA?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/11, about 166 frost-free days later.
Deloit sits in USDA Zone 5a (-20 to -15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 6 weeks of growing season left in Deloit before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Deloit's last frost
04/27 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. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Deloit compares
At roughly 166 frost-free days, Deloit places 30,455 of 40,283 ZIP codes in this dataset. Within IA, it ranks 478 of 1,042.
Learn more
the frost range covers how to read the range around Deloit's dates instead of trusting one. local microclimates covers what one yard in Deloit can differ from the 51441 normal.