Chesapeake Beach, MD 20689 Frost Dates
Frost dates for Chesapeake Beach, MD, ZIP 20689
Around 04/17 is the usual last spring frost, about 232 days away. The first fall frost typically arrives around 10/27, about 195 frost-free days later.
Chesapeake Beach 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
Zone 7b around Chesapeake Beach 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 Chesapeake Beach's last frost
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Chesapeake Beach compares
About 195 days separate Chesapeake Beach's last and first frost, putting it 19,244 of 40,283 ZIP codes nationally. Within MD, it ranks 504 of 583.
Learn more
the frost range explains how to read the range around Chesapeake Beach's dates instead of trusting one, and local microclimates explains what one yard in Chesapeake Beach can differ from the 20689 normal.