Northwood, OH 43619 Frost Dates
Frost dates for Northwood, OH, ZIP 43619
Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 10/27, about 188 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 Northwood, not a forecast for this year.
What to do before the first frost
Zone 6b around Northwood has about 9 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 Northwood's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 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 Northwood compares
About 188 days separate Northwood's last and first frost, putting it 21,986 of 40,283 ZIP codes nationally. Within OH, it ranks 379 of 1,383.
Learn more
the frost range explains how to read the range around Northwood's dates instead of trusting one, and local microclimates explains what one yard in Northwood can differ from the 43619 normal.