Port Washington, OH 43837 Frost Dates
Frost dates for Port Washington, OH, ZIP 43837
Typically, the last spring freeze lands around 04/26, roughly 241 days out. The first fall frost typically arrives around 10/21, about 176 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 Port Washington, not a forecast for this year.
What to do before the first frost
Zone 6b around Port Washington 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.
The actual range around Port Washington's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Port Washington compares
At roughly 176 frost-free days, Port Washington places 26,597 of 40,283 ZIP codes in this dataset. Within OH, it ranks 989 of 1,383.
Learn more
local microclimates explains what one yard in Port Washington can differ from the 43837 normal, and zone vs. frost date explains why Zone 6b and Port Washington's frost date answer different questions.