Dennison, OH 44683 Frost Dates
When can you plant in Dennison, OH?
Around 04/26 is the usual last spring frost, about 241 days away. 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 Dennison, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Dennison before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Dennison'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 Dennison compares
Dennison's growing season runs about 176 days, ranking 26,470 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 977 of 1,383.
Learn more
local microclimates covers what one yard in Dennison can differ from the 44683 normal. zone vs. frost date covers why Zone 6b and Dennison's frost date answer different questions.