Matthews, MO 63867 Frost Dates
63867, near Matthews, MO: the frost window
Typically, the last spring freeze lands around 03/26, roughly 210 days out. Fall's first freeze usually shows up around 11/06, roughly 225 days after the last spring frost.
Zone 7b (5 to 10°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 Matthews, not a forecast for this year.
Stretching the season past the first frost
Matthews's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Matthews's last frost
03/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/08 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/09 and only about 1 year in 10 sees frost after that.
Matthews against the rest of the dataset
At roughly 225 frost-free days, Matthews places 11,465 of 40,283 ZIP codes in this dataset. Within MO, it ranks 19 of 1,129.
Learn more
Two guides worth reading on 63867: zone vs. frost date, on why Zone 7b and Matthews's frost date answer different questions, and the frost range, on how to read the range around Matthews's dates instead of trusting one.