FrostDateCheck

Iberia, MO 65486 Frost Dates

65486, near Iberia, MO: the frost window

Zone 6b

The last spring frost here typically falls around 04/08, about 223 days from today. Fall's first freeze usually shows up around 10/28, roughly 200 days after the last spring frost.

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 Iberia, not a forecast for this year.

Stretching the season past the first frost

Iberia's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

The actual range around Iberia's last frost

04/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/26 and only about 1 year in 10 sees frost after that.

Iberia against the rest of the dataset

About 200 days separate Iberia's last and first frost, putting it 17,866 of 40,283 ZIP codes nationally. Within MO, it ranks 397 of 1,129.

Learn more

Two guides worth reading on 65486: local microclimates, on what one yard in Iberia can differ from the 65486 normal, and zone vs. frost date, on why Zone 6b and Iberia's frost date answer different questions.