FrostDateCheck

Monaca, PA 15061 Frost Dates

15061, near Monaca, PA: the frost window

Zone 6b

The last spring frost here typically falls around 04/28, about 243 days from today. Fall's first freeze usually shows up around 10/18, roughly 172 days after the last spring frost.

Monaca 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

Monaca's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

How much risk comes with planting early here

04/28 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 05/15 and only about 1 year in 10 sees frost after that.

Monaca against the rest of the dataset

At roughly 172 frost-free days, Monaca places 28,272 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,353 of 2,088.

Learn more

Two guides worth reading on 15061: the frost range, on how to read the range around Monaca's dates instead of trusting one, and local microclimates, on what one yard in Monaca can differ from the 15061 normal.