Eau Claire, PA 16030 Frost Dates
Eau Claire, PA: when does the frost end?
Typically, the last spring freeze lands around 05/15, roughly 260 days out. Fall's first freeze usually shows up around 10/03, roughly 140 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Eau Claire in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 5 weeks until Eau Claire's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Eau Claire's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/01 and only about 1 year in 10 sees frost after that.
Eau Claire against the rest of the dataset
Eau Claire's growing season runs about 140 days, ranking 37,155 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 2,026 of 2,088.
Learn more
Before leaning on 16030's figures: zone vs. frost date explains why Zone 6a and Eau Claire's frost date answer different questions, while the frost range explains how to read the range around Eau Claire's dates instead of trusting one.