FrostDateCheck

Kansas City, MO 64128 Frost Dates

When can you plant in Kansas City, MO?

Zone 6b

The last spring frost here typically falls around 04/04, about 219 days from today. The first fall frost typically arrives around 11/02, about 211 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 Kansas City, not a forecast for this year.

What to do before the first frost

About 9 weeks of growing season left in Kansas City 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

04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/17 and you're betting against frost in roughly 9 years out of 10. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Kansas City compares

At roughly 211 frost-free days, Kansas City places 14,705 of 40,283 ZIP codes in this dataset. Within MO, it ranks 161 of 1,129.

Learn more

zone vs. frost date covers why Zone 6b and Kansas City's frost date answer different questions. the frost range covers how to read the range around Kansas City's dates instead of trusting one.