McConnellsburg, PA 17233 Frost Dates
17233, near McConnellsburg, PA: the frost window
Around 04/07 is the usual last spring frost, about 222 days away. Fall's first freeze usually shows up around 11/04, roughly 209 days after the last spring frost.
Zone 7a (0 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 McConnellsburg, not a forecast for this year.
Stretching the season past the first frost
McConnellsburg's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
McConnellsburg against the rest of the dataset
At roughly 209 frost-free days, McConnellsburg places 15,320 of 40,283 ZIP codes in this dataset. Within PA, it ranks 97 of 2,088.
Learn more
Two guides worth reading on 17233: the frost range, on how to read the range around McConnellsburg's dates instead of trusting one, and local microclimates, on what one yard in McConnellsburg can differ from the 17233 normal.