Rouseville, PA 16344 Frost Dates
Rouseville, 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 10/23, roughly 175 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Rouseville in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Rouseville'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
04/30 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 05/18 and only about 1 year in 10 sees frost after that.
Rouseville against the rest of the dataset
About 175 days separate Rouseville's last and first frost, putting it 27,189 of 40,283 ZIP codes nationally. Within PA, it ranks 1,249 of 2,088.
Learn more
Before leaning on 16344's figures: local microclimates explains what one yard in Rouseville can differ from the 16344 normal, while zone vs. frost date explains why Zone 6a and Rouseville's frost date answer different questions.