North Troy, VT 05874 Frost Dates
Frost dates for North Troy, VT, ZIP 05874
Typically, the last spring freeze lands around 05/14, roughly 259 days out. The first fall frost typically arrives around 09/30, about 138 frost-free days later.
Zone 5a (-20 to -15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for North Troy, not a forecast for this year.
What to do before the first frost
Zone 5a around North Troy has about 5 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.
The actual range around North Troy's last frost
05/14 is the middle of 30 years of NOAA records, not a promise. Plant by 05/01 and you're betting against frost in roughly 9 years out of 10. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How North Troy compares
North Troy's growing season runs about 138 days, ranking 37,440 of 40,283 US ZIP codes measured here, longest to shortest. Within VT, it ranks 198 of 330.
Learn more
zone vs. frost date explains why Zone 5a and North Troy's frost date answer different questions, and the frost range explains how to read the range around North Troy's dates instead of trusting one.