Haverhill, MA 01834 Frost Dates
Haverhill, MA: when does the frost end?
Around 05/03 is the usual last spring frost, about 248 days away. Fall's first freeze usually shows up around 10/08, roughly 158 days after the last spring frost.
Zone 6a (-10 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 Haverhill, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Haverhill's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Haverhill's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Haverhill against the rest of the dataset
Haverhill's growing season runs about 158 days, ranking 32,868 of 40,283 US ZIP codes measured here, longest to shortest. Within MA, it ranks 554 of 712.
Learn more
Before leaning on 01834's figures: the frost range explains how to read the range around Haverhill's dates instead of trusting one, while local microclimates explains what one yard in Haverhill can differ from the 01834 normal.