Rensselaer, NY 12210 Frost Dates
Rensselaer, NY: when does the frost end?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. Fall's first freeze usually shows up around 10/15, roughly 169 days after the last spring frost.
Rensselaer sits in USDA Zone 6a (-10 to -5°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
With roughly 7 weeks until Rensselaer's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Rensselaer against the rest of the dataset
Rensselaer's growing season runs about 169 days, ranking 29,390 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 794 of 1,951.
Learn more
Before leaning on 12210's figures: zone vs. frost date explains why Zone 6a and Rensselaer's frost date answer different questions, while the frost range explains how to read the range around Rensselaer's dates instead of trusting one.