Indian Head, MD 20640 Frost Dates
Indian Head, MD: when does the frost end?
Around 03/28 is the usual last spring frost, about 212 days away. Fall's first freeze usually shows up around 11/08, roughly 226 days after the last spring frost.
Indian Head 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.
Stretching the season past the first frost
With roughly 10 weeks until Indian Head's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Indian Head against the rest of the dataset
About 226 days separate Indian Head's last and first frost, putting it 11,195 of 40,283 ZIP codes nationally. Within MD, it ranks 104 of 583.
Learn more
Before leaning on 20640's figures: zone vs. frost date explains why Zone 7b and Indian Head's frost date answer different questions, while the frost range explains how to read the range around Indian Head's dates instead of trusting one.