Mount Orab, OH 45154 Frost Dates
When can you plant in Mount Orab, OH?
Around 04/11 is the usual last spring frost, about 226 days away. The first fall frost typically arrives around 10/30, about 200 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 Mount Orab, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Mount Orab before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mount Orab compares
Mount Orab's growing season runs about 200 days, ranking 17,778 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 67 of 1,383.
Learn more
local microclimates covers what one yard in Mount Orab can differ from the 45154 normal. zone vs. frost date covers why Zone 6b and Mount Orab's frost date answer different questions.