Rensselaer, NY 12246 Frost Dates
When can you plant in Rensselaer, NY?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/15, about 169 frost-free days later.
The USDA Plant Hardiness Zone Map puts Rensselaer in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 7 weeks of growing season left in Rensselaer before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rensselaer compares
Rensselaer's growing season runs about 169 days, ranking 29,391 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 795 of 1,951.
Learn more
zone vs. frost date covers why Zone 6a and Rensselaer's frost date answer different questions. the frost range covers how to read the range around Rensselaer's dates instead of trusting one.