Laytonsville, MD 20882 Frost Dates
Laytonsville, MD: when does the frost end?
Typically, the last spring freeze lands around 04/14, roughly 229 days out. Fall's first freeze usually shows up around 10/29, roughly 196 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Laytonsville 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
With roughly 9 weeks until Laytonsville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Laytonsville's last frost
04/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Laytonsville against the rest of the dataset
Laytonsville's growing season runs about 196 days, ranking 19,064 of 40,283 US ZIP codes measured here, longest to shortest. Within MD, it ranks 493 of 583.
Learn more
Before leaning on 20882's figures: zone vs. frost date explains why Zone 7b and Laytonsville's frost date answer different questions, while the frost range explains how to read the range around Laytonsville's dates instead of trusting one.