Mahanoy City, PA 17948 Frost Dates
Mahanoy City, PA: when does the frost end?
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/22, roughly 175 days after the last spring frost.
Zone 6b (-5 to 0°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 Mahanoy City, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Mahanoy City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 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.
Mahanoy City against the rest of the dataset
At roughly 175 frost-free days, Mahanoy City places 26,909 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,143 of 2,088.
Learn more
Before leaning on 17948's figures: the frost range explains how to read the range around Mahanoy City's dates instead of trusting one, while local microclimates explains what one yard in Mahanoy City can differ from the 17948 normal.