Eagle Harbor, MD 20639 Frost Dates
When can you plant in Eagle Harbor, MD?
Typically, the last spring freeze lands around 04/17, roughly 232 days out. The first fall frost typically arrives around 10/27, about 195 frost-free days later.
The USDA Plant Hardiness Zone Map puts Eagle Harbor in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 9 weeks of growing season left in Eagle Harbor before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Eagle Harbor compares
Eagle Harbor's growing season runs about 195 days, ranking 19,397 of 40,283 US ZIP codes measured here, longest to shortest. Within MD, it ranks 517 of 583.
Learn more
zone vs. frost date covers why Zone 7b and Eagle Harbor's frost date answer different questions. the frost range covers how to read the range around Eagle Harbor's dates instead of trusting one.