Westernport, MD 21562 Frost Dates
When can you plant in Westernport, MD?
The last spring frost here typically falls around 04/30, about 245 days from today. The first fall frost typically arrives around 10/15, about 167 frost-free days later.
Westernport sits in USDA Zone 6b (-5 to 0°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.
What to do before the first frost
About 7 weeks of growing season left in Westernport before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Westernport's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Westernport compares
About 167 days separate Westernport's last and first frost, putting it 30,038 of 40,283 ZIP codes nationally. Within MD, it ranks 576 of 583.
Learn more
zone vs. frost date covers why Zone 6b and Westernport's frost date answer different questions. the frost range covers how to read the range around Westernport's dates instead of trusting one.