Middletown, PA 17057 Frost Dates
Frost dates for Middletown, PA, ZIP 17057
The last spring frost here typically falls around 04/09, about 224 days from today. The first fall frost typically arrives around 11/02, about 206 frost-free days later.
Zone 7a (0 to 5°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 Middletown, not a forecast for this year.
What to do before the first frost
Zone 7a around Middletown 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.
How much risk comes with planting early here
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/28 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Middletown compares
At roughly 206 frost-free days, Middletown places 15,980 of 40,283 ZIP codes in this dataset. Within PA, it ranks 103 of 2,088.
Learn more
local microclimates explains what one yard in Middletown can differ from the 17057 normal, and zone vs. frost date explains why Zone 7a and Middletown's frost date answer different questions.