Round Lake, NY 12019 Frost Dates
When can you plant in Round Lake, NY?
Typically, the last spring freeze lands around 05/02, roughly 247 days out. The first fall frost typically arrives around 10/07, about 158 frost-free days later.
The USDA Plant Hardiness Zone Map puts Round Lake in Zone 5b (-15 to -10°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 6 weeks of growing season left in Round Lake before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Round Lake compares
Round Lake's growing season runs about 158 days, ranking 33,074 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,190 of 1,951.
Learn more
zone vs. frost date covers why Zone 5b and Round Lake's frost date answer different questions. the frost range covers how to read the range around Round Lake's dates instead of trusting one.