Ridgely, MD 21660 Frost Dates
Frost dates for Ridgely, MD, ZIP 21660
The last spring frost here typically falls around 04/11, about 226 days from today. The first fall frost typically arrives around 10/30, about 200 frost-free days later.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Ridgely, not a forecast for this year.
What to do before the first frost
Zone 7b around Ridgely has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Ridgely's last frost
04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 and you're betting against frost in roughly 9 years out of 10. 04/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ridgely compares
About 200 days separate Ridgely's last and first frost, putting it 17,827 of 40,283 ZIP codes nationally. Within MD, it ranks 468 of 583.
Learn more
the frost range explains how to read the range around Ridgely's dates instead of trusting one, and local microclimates explains what one yard in Ridgely can differ from the 21660 normal.