FrostDateCheck

Elmo, MO 64445 Frost Dates

When can you plant in Elmo, MO?

Zone 5b

The last spring frost here typically falls around 04/25, about 240 days from today. The first fall frost typically arrives around 10/11, about 168 frost-free days later.

Zone 5b (-15 to -10°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 Elmo, not a forecast for this year.

What to do before the first frost

About 6 weeks of growing season left in Elmo before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Elmo's last frost

04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Elmo compares

Elmo's growing season runs about 168 days, ranking 29,809 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 1,114 of 1,129.

Learn more

local microclimates covers what one yard in Elmo can differ from the 64445 normal. zone vs. frost date covers why Zone 5b and Elmo's frost date answer different questions.