Davenport, IA 61266 Frost Dates
Frost dates for Davenport, IA, ZIP 61266
The last spring frost here typically falls around 04/21, about 236 days from today. The first fall frost typically arrives around 10/17, about 176 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 Davenport, not a forecast for this year.
What to do before the first frost
Zone 5b around Davenport has about 7 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.
How much risk comes with planting early here
04/21 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 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 Davenport compares
About 176 days separate Davenport's last and first frost, putting it 26,335 of 40,283 ZIP codes nationally. Within IA, it ranks 134 of 1,042.
Learn more
the frost range explains how to read the range around Davenport's dates instead of trusting one, and local microclimates explains what one yard in Davenport can differ from the 61266 normal.