Burlington Junction, MO 64428 Frost Dates
64428, near Burlington Junction, MO: the frost window
Typically, the last spring freeze lands around 04/19, roughly 234 days out. Fall's first freeze usually shows up around 10/17, roughly 180 days after the last spring frost.
Burlington Junction 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
Burlington Junction's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
Burlington Junction against the rest of the dataset
At roughly 180 frost-free days, Burlington Junction places 25,018 of 40,283 ZIP codes in this dataset. Within MO, it ranks 1,021 of 1,129.
Learn more
Two guides worth reading on 64428: zone vs. frost date, on why Zone 5b and Burlington Junction's frost date answer different questions, and the frost range, on how to read the range around Burlington Junction's dates instead of trusting one.