Cassandra, PA 15925 Frost Dates
Cassandra, PA: when does the frost end?
Around 04/29 is the usual last spring frost, about 244 days away. Fall's first freeze usually shows up around 10/21, roughly 176 days after the last spring frost.
Zone 6a (-10 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 Cassandra, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Cassandra's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Cassandra's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Cassandra against the rest of the dataset
About 176 days separate Cassandra's last and first frost, putting it 26,659 of 40,283 ZIP codes nationally. Within PA, it ranks 1,103 of 2,088.
Learn more
Before leaning on 15925's figures: local microclimates explains what one yard in Cassandra can differ from the 15925 normal, while zone vs. frost date explains why Zone 6a and Cassandra's frost date answer different questions.