Diamond, MO 64840 Frost Dates
When can you plant in Diamond, MO?
Around 04/18 is the usual last spring frost, about 233 days away. The first fall frost typically arrives around 10/22, about 184 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 Diamond, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Diamond before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Diamond's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Diamond compares
At roughly 184 frost-free days, Diamond places 23,606 of 40,283 ZIP codes in this dataset. Within MO, it ranks 910 of 1,129.
Learn more
the frost range covers how to read the range around Diamond's dates instead of trusting one. local microclimates covers what one yard in Diamond can differ from the 64840 normal.