Alexandria Bay, NY 13607 Frost Dates
Frost dates for Alexandria Bay, NY, ZIP 13607
Around 05/14 is the usual last spring frost, about 259 days away. The first fall frost typically arrives around 09/26, about 134 frost-free days later.
Alexandria Bay sits in USDA Zone 5a (-20 to -15°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.
What to do before the first frost
Zone 5a around Alexandria Bay has about 4 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 05/14 isn't a guarantee
05/14 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 05/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Alexandria Bay compares
Alexandria Bay's growing season runs about 134 days, ranking 37,988 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,866 of 1,951.
Learn more
the frost range explains how to read the range around Alexandria Bay's dates instead of trusting one, and local microclimates explains what one yard in Alexandria Bay can differ from the 13607 normal.