Ashtabula, OH 44004 Frost Dates
Frost dates for Ashtabula, OH, ZIP 44004
Around 05/02 is the usual last spring frost, about 247 days away. The first fall frost typically arrives around 10/21, about 171 frost-free days later.
Zone 6b (-5 to 0°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 Ashtabula, not a forecast for this year.
What to do before the first frost
Zone 6b around Ashtabula has about 8 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.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ashtabula compares
Ashtabula's growing season runs about 171 days, ranking 28,606 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 1,125 of 1,383.
Learn more
local microclimates explains what one yard in Ashtabula can differ from the 44004 normal, and zone vs. frost date explains why Zone 6b and Ashtabula's frost date answer different questions.