Morningside, MD 20719 Frost Dates
20719, near Morningside, MD: the frost window
Typically, the last spring freeze lands around 04/09, roughly 224 days out. Fall's first freeze usually shows up around 10/29, roughly 203 days after the last spring frost.
Morningside sits in USDA Zone 7b (5 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
Morningside's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/09 isn't a guarantee
04/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Morningside against the rest of the dataset
At roughly 203 frost-free days, Morningside places 16,962 of 40,283 ZIP codes in this dataset. Within MD, it ranks 390 of 583.
Learn more
Two guides worth reading on 20719: local microclimates, on what one yard in Morningside can differ from the 20719 normal, and zone vs. frost date, on why Zone 7b and Morningside's frost date answer different questions.