Clear Spring, MD 21711 Frost Dates
When can you plant in Clear Spring, MD?
Typically, the last spring freeze lands around 04/17, roughly 232 days out. The first fall frost typically arrives around 10/23, about 187 frost-free days later.
The USDA Plant Hardiness Zone Map puts Clear Spring in Zone 7a (0 to 5°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 8 weeks of growing season left in Clear Spring 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 04/04 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clear Spring compares
At roughly 187 frost-free days, Clear Spring places 22,579 of 40,283 ZIP codes in this dataset. Within MD, it ranks 534 of 583.
Learn more
zone vs. frost date covers why Zone 7a and Clear Spring's frost date answer different questions. the frost range covers how to read the range around Clear Spring's dates instead of trusting one.