Pittsfield, MA 01203 Frost Dates
Frost dates for Pittsfield, MA, ZIP 01203
The last spring frost here typically falls around 05/05, about 250 days from today. The first fall frost typically arrives around 10/05, about 152 frost-free days later.
Pittsfield sits in USDA Zone 5b (-15 to -10°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 5b around Pittsfield 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 Pittsfield's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Pittsfield compares
At roughly 152 frost-free days, Pittsfield places 34,684 of 40,283 ZIP codes in this dataset. Within MA, it ranks 642 of 712.
Learn more
zone vs. frost date explains why Zone 5b and Pittsfield's frost date answer different questions, and the frost range explains how to read the range around Pittsfield's dates instead of trusting one.