Frost dates · USDA zone 8b

Frost dates for Marysville, WA

Marysville, WA sees its last 32 °F night of spring around March 24 and its first of fall around November 2 — a 223-day freeze-free season in a typical year.

Mar 24Last spring frostmedian · 1 in 10 years after Apr 11
Nov 2First fall frostmedian · 1 in 10 years before Oct 16
223Freeze-free daysmedian year · ≥197 in 9 of 10
8bUSDA zone2023 map · ZIP 98270
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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 10Mar 4Nov 23
Median — 1 year in 2Mar 24Nov 2
1 year in 10Apr 11Oct 16

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: 223 days median, at least 197 in 9 years of 10, at least 249 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 1 and first of Nov 21.

Marysville planting calendar, 2027

Every row runs from the median last frost (Mar 24) and median first frost (Nov 2) 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)Dec 30Feb 24Jun 14110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowMar 24Apr 2330 from sow
CilantroSlow Bolt (Coriandrum sativum)Mar 10Mar 10Apr 2445 from sow
Genovese BasilGenoveseFeb 24Apr 7Jun 660 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Jan 27Mar 31Jun 1475 from transplant
HabaneroOrange Habanero (Capsicum chinense)Jan 13Apr 7Jul 1195 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Jan 27Mar 31Jun 1475 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Jan 27Mar 31Jun 1980 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Jan 27Mar 31Jun 1980 from transplant
Nantes CarrotScarlet NantesMar 10Mar 10May 1970 from sow
TomatilloToma VerdeFeb 10Mar 31Jun 970 from transplant
Roma TomatoRoma VF (determinate paste)Feb 10Mar 31Jun 1475 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Feb 10Mar 31Jun 1980 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.

Marysville frost questions

When is the last frost in Marysville, WA?

The median last 32 °F freeze at EVERETT, WA is March 24: half of years see a later one. One year in ten, a freeze still comes after April 11; nine years in ten, it comes after March 4. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Marysville, WA?

The median first 32 °F freeze of fall is November 2. One year in ten it arrives before October 16; nine years in ten, before November 23.

How long is the growing season in Marysville, WA?

223 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 197 days; one year in ten, at least 249 days.

What growing zone is Marysville, WA?

USDA hardiness zone 8b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 98270. 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 Marysville, WA?

Start Roma VF (determinate paste) seeds indoors around Feb 10 and transplant around Mar 31, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Apr 11. First ripe fruit lands around Jun 14.

When should I plant peppers in Marysville, WA?

Sow jalapeño indoors on a heat mat around Jan 27; transplant no earlier than Mar 31, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Jun 14.

Nearby in Washington

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