East Prospect, PA 17312 Frost Dates
East Prospect, PA: when does the frost end?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/10, roughly 162 days after the last spring frost.
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 East Prospect, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until East Prospect's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around East Prospect's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
East Prospect against the rest of the dataset
East Prospect's growing season runs about 162 days, ranking 31,802 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,664 of 2,088.
Learn more
Before leaning on 17312's figures: the frost range explains how to read the range around East Prospect's dates instead of trusting one, while local microclimates explains what one yard in East Prospect can differ from the 17312 normal.