Barton, MD 21521 Frost Dates
When can you plant in Barton, MD?
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/20, about 174 frost-free days later.
Barton 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 8 weeks of growing season left in Barton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Barton's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Barton compares
At roughly 174 frost-free days, Barton places 27,597 of 40,283 ZIP codes in this dataset. Within MD, it ranks 567 of 583.
Learn more
the frost range covers how to read the range around Barton's dates instead of trusting one. local microclimates covers what one yard in Barton can differ from the 21521 normal.