Tower City, PA 17983 Frost Dates
Frost dates for Tower City, PA, ZIP 17983
The last spring frost here typically falls around 04/27, about 242 days from today. The first fall frost typically arrives around 10/20, about 172 frost-free days later.
The USDA Plant Hardiness Zone Map puts Tower City in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6b around Tower City has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tower City compares
Tower City's growing season runs about 172 days, ranking 28,374 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,378 of 2,088.
Learn more
local microclimates explains what one yard in Tower City can differ from the 17983 normal, and zone vs. frost date explains why Zone 6b and Tower City's frost date answer different questions.