Butler, NJ 07403 Frost Dates
Frost dates for Butler, NJ, ZIP 07403
The last spring frost here typically falls around 04/19, about 234 days from today. The first fall frost typically arrives around 10/23, about 188 frost-free days later.
Butler sits in USDA Zone 7a (0 to 5°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 7a around Butler 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
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Butler compares
Butler's growing season runs about 188 days, ranking 21,952 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 677 of 906.
Learn more
the frost range explains how to read the range around Butler's dates instead of trusting one, and local microclimates explains what one yard in Butler can differ from the 07403 normal.