FrostDateCheck

Steelville, MO 65449 Frost Dates

65449, near Steelville, MO: the frost window

Zone 6b

The last spring frost here typically falls around 04/26, about 241 days from today. Fall's first freeze usually shows up around 10/08, roughly 164 days after the last spring frost.

Steelville sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

Stretching the season past the first frost

Steelville's growing season runs out in roughly 6 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 Steelville's last frost

04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.

Steelville against the rest of the dataset

At roughly 164 frost-free days, Steelville places 31,021 of 40,283 ZIP codes in this dataset. Within MO, it ranks 1,124 of 1,129.

Learn more

Two guides worth reading on 65449: local microclimates, on what one yard in Steelville can differ from the 65449 normal, and zone vs. frost date, on why Zone 6b and Steelville's frost date answer different questions.