Manville, NJ 08835 Frost Dates
Frost dates for Manville, NJ, ZIP 08835
Around 04/30 is the usual last spring frost, about 245 days away. The first fall frost typically arrives around 10/20, about 172 frost-free days later.
Zone 7a (0 to 5°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 Manville, not a forecast for this year.
What to do before the first frost
Zone 7a around Manville 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
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Manville compares
At roughly 172 frost-free days, Manville places 28,221 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 868 of 906.
Learn more
local microclimates explains what one yard in Manville can differ from the 08835 normal, and zone vs. frost date explains why Zone 7a and Manville's frost date answer different questions.