La Plata, MD 20603 Frost Dates
When can you plant in La Plata, MD?
Typically, the last spring freeze lands around 04/03, roughly 218 days out. The first fall frost typically arrives around 11/08, about 217 frost-free days later.
La Plata 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.
What to do before the first frost
About 10 weeks of growing season left in La Plata before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around La Plata's last frost
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How La Plata compares
About 217 days separate La Plata's last and first frost, putting it 13,438 of 40,283 ZIP codes nationally. Within MD, it ranks 277 of 583.
Learn more
the frost range covers how to read the range around La Plata's dates instead of trusting one. local microclimates covers what one yard in La Plata can differ from the 20603 normal.