Martinsburg, OH 43037 Frost Dates
When can you plant in Martinsburg, OH?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/17, about 172 frost-free days later.
The USDA Plant Hardiness Zone Map puts Martinsburg in Zone 6a (-10 to -5°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 7 weeks of growing season left in Martinsburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Martinsburg compares
At roughly 172 frost-free days, Martinsburg places 28,519 of 40,283 ZIP codes in this dataset. Within OH, it ranks 1,122 of 1,383.
Learn more
zone vs. frost date covers why Zone 6a and Martinsburg's frost date answer different questions. the frost range covers how to read the range around Martinsburg's dates instead of trusting one.