Riverview, MO 63137 Frost Dates
Riverview, MO: when does the frost end?
Typically, the last spring freeze lands around 04/02, roughly 217 days out. Fall's first freeze usually shows up around 11/04, roughly 215 days after the last spring frost.
Zone 7a (0 to 5°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 Riverview, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Riverview's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Riverview's last frost
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.
Riverview against the rest of the dataset
Riverview's growing season runs about 215 days, ranking 14,103 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 119 of 1,129.
Learn more
Before leaning on 63137's figures: the frost range explains how to read the range around Riverview's dates instead of trusting one, while local microclimates explains what one yard in Riverview can differ from the 63137 normal.