Frost dates · USDA zone 6b

Frost dates for Malden, MA

Malden, MA sees its last 32 °F night of spring around April 4 and its first of fall around November 9 — a 218-day freeze-free season in a typical year.

Apr 4Last spring frostmedian · 1 in 10 years after Apr 17
Nov 9First fall frostmedian · 1 in 10 years before Oct 29
218Freeze-free daysmedian year · ≥201 in 9 of 10
6bUSDA zone2023 map · ZIP 02148
Build a Malden sauce plan →

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 10Mar 25Nov 22
Median — 1 year in 2Apr 4Nov 9
1 year in 10Apr 17Oct 29

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: 218 days median, at least 201 in 9 years of 10, at least 235 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 Mar 28 and first of Nov 21.

Malden planting calendar, 2027

Every row runs from the median last frost (Apr 4) and median first frost (Nov 9) 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)Jan 10Mar 7Jun 25110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowApr 4May 430 from sow
CilantroSlow Bolt (Coriandrum sativum)Mar 21Mar 21May 545 from sow
Genovese BasilGenoveseMar 7Apr 18Jun 1760 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Feb 7Apr 11Jun 2575 from transplant
HabaneroOrange Habanero (Capsicum chinense)Jan 24Apr 18Jul 2295 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Feb 7Apr 11Jun 2575 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Feb 7Apr 11Jun 3080 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Feb 7Apr 11Jun 3080 from transplant
Nantes CarrotScarlet NantesMar 21Mar 21May 3070 from sow
TomatilloToma VerdeFeb 21Apr 11Jun 2070 from transplant
Roma TomatoRoma VF (determinate paste)Feb 21Apr 11Jun 2575 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Feb 21Apr 11Jun 3080 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.

Malden frost questions

When is the last frost in Malden, MA?

The median last 32 °F freeze at BOSTON LOGAN INTL AP, MA is April 4: half of years see a later one. One year in ten, a freeze still comes after April 17; nine years in ten, it comes after March 25. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Malden, MA?

The median first 32 °F freeze of fall is November 9. One year in ten it arrives before October 29; nine years in ten, before November 22.

How long is the growing season in Malden, MA?

218 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 201 days; one year in ten, at least 235 days.

What growing zone is Malden, MA?

USDA hardiness zone 6b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 02148. 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 Malden, MA?

Start Roma VF (determinate paste) seeds indoors around Feb 21 and transplant around Apr 11, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Apr 17. First ripe fruit lands around Jun 25.

When should I plant peppers in Malden, MA?

Sow jalapeño indoors on a heat mat around Feb 7; transplant no earlier than Apr 11, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Jun 25.

Nearby in Massachusetts

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