Marion, KY 42033 Frost Dates
When can you plant in Marion, KY?
The last spring frost here typically falls around 04/07, about 222 days from today. The first fall frost typically arrives around 10/28, about 203 frost-free days later.
Zone 7a (0 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 Marion, not a forecast for this year.
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.
The actual range around Marion's last frost
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
Marion's growing season runs about 203 days, ranking 16,926 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 242 of 909.
Learn more
local microclimates covers what one yard in Marion can differ from the 42033 normal. zone vs. frost date covers why Zone 7a and Marion's frost date answer different questions.