Amsterdam, OH 43970 Frost Dates
When can you plant in Amsterdam, OH?
Around 04/22 is the usual last spring frost, about 237 days away. The first fall frost typically arrives around 10/28, about 186 frost-free days later.
The USDA Plant Hardiness Zone Map puts Amsterdam in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 9 weeks of growing season left in Amsterdam before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Amsterdam's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Amsterdam compares
About 186 days separate Amsterdam's last and first frost, putting it 22,919 of 40,283 ZIP codes nationally. Within OH, it ranks 514 of 1,383.
Learn more
local microclimates covers what one yard in Amsterdam can differ from the 43970 normal. zone vs. frost date covers why Zone 6b and Amsterdam's frost date answer different questions.