Rensselaer Falls, NY 13630 Frost Dates
13630, near Rensselaer Falls, NY: the frost window
Around 05/09 is the usual last spring frost, about 254 days away. Fall's first freeze usually shows up around 09/30, roughly 142 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Rensselaer Falls in Zone 4b (-25 to -20°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
Rensselaer Falls's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Rensselaer Falls's last frost
05/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/25 and only about 1 year in 10 sees frost after that.
Rensselaer Falls against the rest of the dataset
At roughly 142 frost-free days, Rensselaer Falls places 36,813 of 40,283 ZIP codes in this dataset. Within NY, it ranks 1,770 of 1,951.
Learn more
Two guides worth reading on 13630: local microclimates, on what one yard in Rensselaer Falls can differ from the 13630 normal, and zone vs. frost date, on why Zone 4b and Rensselaer Falls's frost date answer different questions.