FrostDateCheck

Warsaw, MO 65326 Frost Dates

65326, near Warsaw, MO: the frost window

Zone 6b

Around 04/07 is the usual last spring frost, about 222 days away. Fall's first freeze usually shows up around 10/30, roughly 205 days after the last spring frost.

Warsaw 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

Warsaw'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.

Why 04/07 isn't a guarantee

04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/22 and only about 1 year in 10 sees frost after that.

Warsaw against the rest of the dataset

About 205 days separate Warsaw's last and first frost, putting it 16,316 of 40,283 ZIP codes nationally. Within MO, it ranks 254 of 1,129.

Learn more

Two guides worth reading on 65326: local microclimates, on what one yard in Warsaw can differ from the 65326 normal, and zone vs. frost date, on why Zone 6b and Warsaw's frost date answer different questions.