FrostDateCheck

Middletown, MD 21714 Frost Dates

Middletown, MD: when does the frost end?

Zone 7b

Around 04/02 is the usual last spring frost, about 217 days away. Fall's first freeze usually shows up around 11/06, roughly 218 days after the last spring frost.

Middletown 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 Middletown'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

04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/15 and only about 1 year in 10 sees frost after that.

Middletown against the rest of the dataset

Middletown's growing season runs about 218 days, ranking 13,266 of 40,283 US ZIP codes measured here, longest to shortest. Within MD, it ranks 261 of 583.

Learn more

Before leaning on 21714's figures: the frost range explains how to read the range around Middletown's dates instead of trusting one, while local microclimates explains what one yard in Middletown can differ from the 21714 normal.