Agency, IA 52530 Frost Dates
When can you plant in Agency, IA?
The last spring frost here typically falls around 04/23, about 238 days from today. The first fall frost typically arrives around 10/14, about 172 frost-free days later.
Agency sits in USDA Zone 5b (-15 to -10°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 7 weeks of growing season left in Agency before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Agency's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Agency compares
At roughly 172 frost-free days, Agency places 28,431 of 40,283 ZIP codes in this dataset. Within IA, it ranks 273 of 1,042.
Learn more
local microclimates covers what one yard in Agency can differ from the 52530 normal. zone vs. frost date covers why Zone 5b and Agency's frost date answer different questions.