Frost dates · USDA zone 5b

Frost dates for Pittsfield, MA

Pittsfield, MA sees its last 32 °F night of spring around May 5 and its first of fall around October 5 — a 152-day freeze-free season in a typical year.

May 5Last spring frostmedian · 1 in 10 years after May 21
Oct 5First fall frostmedian · 1 in 10 years before Sep 23
152Freeze-free daysmedian year · ≥133 in 9 of 10
5bUSDA zone2023 map · ZIP 01201
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Pick a sauce; the Plan Builder runs this station's dates and hands back the calendar, plant count and gear list.

Freeze odds, by date

OddsLast spring freeze afterFirst fall freeze before
9 years in 10Apr 23Oct 22
Median — 1 year in 2May 5Oct 5
1 year in 10May 21Sep 23

The top row is the risky edge: in 9 years of 10 a spring freeze still comes after it, so tender transplants set out then need cover. The bottom row is the cautious date — only 1 year in 10 freezes after it — and the one to plan uncovered tender transplants against. Freeze-free season: 152 days median, at least 133 in 9 years of 10, at least 171 days in 1 year of 10. NOAA ranks season length year by year, so it is not the gap between two rows above. A hard freeze (28 °F) has a median last date of Apr 23 and first of Oct 18.

Pittsfield planting calendar, 2027

Every row runs from the median last frost (May 5) and median first frost (Oct 5) above, using each cultivar's days to maturity. Same engine as the Plan Builder.

CropStart indoorsTransplant / plantFirst harvestDays
Hardneck GarlicSiberian (porcelain hardneck)—Oct 15prior fallJun 12240 from sow
Spanish OnionYellow Sweet Spanish (long-day)Feb 10Apr 7Jul 26110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowMay 5Jun 430 from sow
CilantroSlow Bolt (Coriandrum sativum)Apr 21Apr 21Jun 545 from sow
Genovese BasilGenoveseApr 7May 19Jul 1860 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Mar 10May 12Jul 2675 from transplant
HabaneroOrange Habanero (Capsicum chinense)Feb 24May 19Aug 2295 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Mar 10May 12Jul 2675 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Mar 10May 12Jul 3180 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Mar 10May 12Jul 3180 from transplant
Nantes CarrotScarlet NantesApr 21Apr 21Jun 3070 from sow
TomatilloToma VerdeMar 24May 12Jul 2170 from transplant
Roma TomatoRoma VF (determinate paste)Mar 24May 12Jul 2675 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Mar 24May 12Jul 3180 from transplant

Tight means first harvest lands within two weeks of the median first fall frost: start that crop indoors on time or cover it in fall.

Pittsfield frost questions

When is the last frost in Pittsfield, MA?

The median last 32 °F freeze at PITTSFIELD MUNI AP, MA is May 5: half of years see a later one. One year in ten, a freeze still comes after May 21; nine years in ten, it comes after April 23. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Pittsfield, MA?

The median first 32 °F freeze of fall is October 5. One year in ten it arrives before September 23; nine years in ten, before October 22.

How long is the growing season in Pittsfield, MA?

152 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 133 days; one year in ten, at least 171 days.

What growing zone is Pittsfield, MA?

USDA hardiness zone 5b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 01201. A zone describes the coldest winter night, not when frost ends, so it is the wrong number for a planting calendar — the frost dates on this page are the right one.

When should I plant tomatoes in Pittsfield, MA?

Start Roma VF (determinate paste) seeds indoors around Mar 24 and transplant around May 12, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for May 21. First ripe fruit lands around Jul 26.

When should I plant peppers in Pittsfield, MA?

Sow jalapeño indoors on a heat mat around Mar 10; transplant no earlier than May 12, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Jul 26.

Nearby in Massachusetts

All Massachusetts frost dates → · How frost-date math drives a sowing calendar →