Watson, MO 64496 Frost Dates
Watson, MO: when does the frost end?
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/10, roughly 167 days after the last spring frost.
Watson sits in USDA Zone 5b (-15 to -10°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 6 weeks until Watson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Watson's last frost
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Watson against the rest of the dataset
About 167 days separate Watson's last and first frost, putting it 30,254 of 40,283 ZIP codes nationally. Within MO, it ranks 1,120 of 1,129.
Learn more
Before leaning on 64496's figures: local microclimates explains what one yard in Watson can differ from the 64496 normal, while zone vs. frost date explains why Zone 5b and Watson's frost date answer different questions.