Morningside, MD 20746 Frost Dates
20746, near Morningside, MD: the frost window
The last spring frost here typically falls around 04/03, about 218 days from today. Fall's first freeze usually shows up around 11/08, roughly 217 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Morningside in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Morningside'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.
How much risk comes with planting early here
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/15 and only about 1 year in 10 sees frost after that.
Morningside against the rest of the dataset
About 217 days separate Morningside's last and first frost, putting it 13,548 of 40,283 ZIP codes nationally. Within MD, it ranks 311 of 583.
Learn more
Two guides worth reading on 20746: the frost range, on how to read the range around Morningside's dates instead of trusting one, and local microclimates, on what one yard in Morningside can differ from the 20746 normal.