Mountain Lakes, NJ 07054 Frost Dates
Frost dates for Mountain Lakes, NJ, ZIP 07054
Typically, the last spring freeze lands around 04/17, roughly 232 days out. The first fall frost typically arrives around 10/23, about 189 frost-free days later.
The USDA Plant Hardiness Zone Map puts Mountain Lakes in Zone 7a (0 to 5°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
Zone 7a around Mountain Lakes has about 8 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.
How much risk comes with planting early here
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mountain Lakes compares
Mountain Lakes's growing season runs about 189 days, ranking 21,555 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 652 of 906.
Learn more
zone vs. frost date explains why Zone 7a and Mountain Lakes's frost date answer different questions, and the frost range explains how to read the range around Mountain Lakes's dates instead of trusting one.