State College, PA 16802 Frost Dates
State College, PA: when does the frost end?
Around 04/20 is the usual last spring frost, about 235 days away. Fall's first freeze usually shows up around 10/26, roughly 187 days after the last spring frost.
State College sits in USDA Zone 6b (-5 to 0°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 8 weeks until State College'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
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
State College against the rest of the dataset
At roughly 187 frost-free days, State College places 22,288 of 40,283 ZIP codes in this dataset. Within PA, it ranks 604 of 2,088.
Learn more
Before leaning on 16802's figures: local microclimates explains what one yard in State College can differ from the 16802 normal, while zone vs. frost date explains why Zone 6b and State College's frost date answer different questions.