Bridgeton, MO 63044 Frost Dates
Bridgeton, MO: when does the frost end?
Around 04/02 is the usual last spring frost, about 217 days away. Fall's first freeze usually shows up around 11/04, roughly 215 days after the last spring frost.
Bridgeton 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
With roughly 10 weeks until Bridgeton'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
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/17 and only about 1 year in 10 sees frost after that.
Bridgeton against the rest of the dataset
About 215 days separate Bridgeton's last and first frost, putting it 14,055 of 40,283 ZIP codes nationally. Within MO, it ranks 113 of 1,129.
Learn more
Before leaning on 63044's figures: local microclimates explains what one yard in Bridgeton can differ from the 63044 normal, while zone vs. frost date explains why Zone 6b and Bridgeton's frost date answer different questions.