Cumming, IA 50061 Frost Dates
When can you plant in Cumming, IA?
Typically, the last spring freeze lands around 04/18, roughly 233 days out. The first fall frost typically arrives around 10/20, about 184 frost-free days later.
Cumming 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 8 weeks of growing season left in Cumming before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Cumming's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cumming compares
Cumming's growing season runs about 184 days, ranking 23,621 of 40,283 US ZIP codes measured here, longest to shortest. Within IA, it ranks 75 of 1,042.
Learn more
the frost range covers how to read the range around Cumming's dates instead of trusting one. local microclimates covers what one yard in Cumming can differ from the 50061 normal.