Otterville, MO 65329 Frost Dates
Otterville, MO: when does the frost end?
Typically, the last spring freeze lands around 04/10, roughly 225 days out. Fall's first freeze usually shows up around 10/26, roughly 197 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 Otterville, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Otterville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 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.
Otterville against the rest of the dataset
About 197 days separate Otterville's last and first frost, putting it 18,795 of 40,283 ZIP codes nationally. Within MO, it ranks 556 of 1,129.
Learn more
Before leaning on 65329's figures: zone vs. frost date explains why Zone 6b and Otterville's frost date answer different questions, while the frost range explains how to read the range around Otterville's dates instead of trusting one.