Green Park, MO 63128 Frost Dates
When can you plant in Green Park, MO?
Around 04/01 is the usual last spring frost, about 216 days away. The first fall frost typically arrives around 11/04, about 218 frost-free days later.
The USDA Plant Hardiness Zone Map puts Green Park 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 10 weeks of growing season left in Green Park before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Green Park's last frost
04/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/14 and you're betting against frost in roughly 9 years out of 10. 04/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Green Park compares
Green Park's growing season runs about 218 days, ranking 13,275 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 87 of 1,129.
Learn more
local microclimates covers what one yard in Green Park can differ from the 63128 normal. zone vs. frost date covers why Zone 7a and Green Park's frost date answer different questions.