Tower City, PA 17980 Frost Dates
Tower City, PA: when does the frost end?
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/20, roughly 172 days after the last spring frost.
Tower City 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 Tower City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Tower City against the rest of the dataset
At roughly 172 frost-free days, Tower City places 28,373 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,377 of 2,088.
Learn more
Before leaning on 17980's figures: local microclimates explains what one yard in Tower City can differ from the 17980 normal, while zone vs. frost date explains why Zone 6b and Tower City's frost date answer different questions.