FrostDateCheck

Trenton, MO 64683 Frost Dates

Trenton, MO: when does the frost end?

Zone 6a

The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/20, roughly 184 days after the last spring frost.

Trenton sits in USDA Zone 6a (-10 to -5°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

With roughly 8 weeks until Trenton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

Why 04/16 isn't a guarantee

04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.

Trenton against the rest of the dataset

Trenton's growing season runs about 184 days, ranking 23,497 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 902 of 1,129.

Learn more

Before leaning on 64683's figures: the frost range explains how to read the range around Trenton's dates instead of trusting one, while local microclimates explains what one yard in Trenton can differ from the 64683 normal.