Marion, KY 42064 Frost Dates
When can you plant in Marion, KY?
Around 04/07 is the usual last spring frost, about 222 days away. The first fall frost typically arrives around 10/28, about 203 frost-free days later.
The USDA Plant Hardiness Zone Map puts Marion in Zone 7a (0 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 9 weeks of growing season left in Marion 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
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Marion compares
About 203 days separate Marion's last and first frost, putting it 16,927 of 40,283 ZIP codes nationally. Within KY, it ranks 243 of 909.
Learn more
local microclimates covers what one yard in Marion can differ from the 42064 normal. zone vs. frost date covers why Zone 7a and Marion's frost date answer different questions.