FrostDateCheck

Richville, NY 13633 Frost Dates

13633, near Richville, NY: the frost window

Zone 4b

Around 05/14 is the usual last spring frost, about 259 days away. Fall's first freeze usually shows up around 09/26, roughly 134 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Richville 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

Richville's growing season runs out in roughly 4 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 Richville's last frost

05/14 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 05/30 and only about 1 year in 10 sees frost after that.

Richville against the rest of the dataset

Richville's growing season runs about 134 days, ranking 38,021 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,877 of 1,951.

Learn more

Two guides worth reading on 13633: local microclimates, on what one yard in Richville can differ from the 13633 normal, and zone vs. frost date, on why Zone 4b and Richville's frost date answer different questions.