Warsaw, OH 43805 Frost Dates
When can you plant in Warsaw, OH?
Around 04/24 is the usual last spring frost, about 239 days away. The first fall frost typically arrives around 10/21, about 177 frost-free days later.
Zone 6a (-10 to -5°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 Warsaw, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Warsaw before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Warsaw compares
Warsaw's growing season runs about 177 days, ranking 26,212 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 942 of 1,383.
Learn more
zone vs. frost date covers why Zone 6a and Warsaw's frost date answer different questions. the frost range covers how to read the range around Warsaw's dates instead of trusting one.