Frost dates · USDA zone 8b

Frost dates for Medford, OR

Medford, OR sees its last 32 °F night of spring around April 8 and its first of fall around October 29 — a 204-day freeze-free season in a typical year.

Apr 8Last spring frostmedian · 1 in 10 years after Apr 30
Oct 29First fall frostmedian · 1 in 10 years before Oct 14
204Freeze-free daysmedian year · ≥176 in 9 of 10
8bUSDA zone2023 map · ZIP 97504
Build a Medford 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 17Nov 16
Median — 1 year in 2Apr 8Oct 29
1 year in 10Apr 30Oct 14

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: 204 days median, at least 176 in 9 years of 10, at least 232 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 10 and first of Nov 13.

Medford planting calendar, 2027

Every row runs from the median last frost (Apr 8) and median first frost (Oct 29) 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 14Mar 11Jun 29110 from transplant
Mustard greensGarnet Giant (Brassica juncea)Direct sowApr 8May 830 from sow
CilantroSlow Bolt (Coriandrum sativum)Mar 25Mar 25May 945 from sow
Genovese BasilGenoveseMar 11Apr 22Jun 2160 from transplant
CayenneLong Slim Cayenne (Capsicum annuum)Feb 11Apr 15Jun 2975 from transplant
HabaneroOrange Habanero (Capsicum chinense)Jan 28Apr 22Jul 2695 from transplant
JalapeñoEarly Jalapeño (Capsicum annuum)Feb 11Apr 15Jun 2975 from transplant
Marconi Red PepperMarconi Red (Capsicum annuum)Feb 11Apr 15Jul 480 from transplant
SerranoSerrano Tampiqueño (Capsicum annuum)Feb 11Apr 15Jul 480 from transplant
Nantes CarrotScarlet NantesMar 25Mar 25Jun 370 from sow
TomatilloToma VerdeFeb 25Apr 15Jun 2470 from transplant
Roma TomatoRoma VF (determinate paste)Feb 25Apr 15Jun 2975 from transplant
San Marzano TomatoSan Marzano (indeterminate paste)Feb 25Apr 15Jul 480 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.

Medford frost questions

When is the last frost in Medford, OR?

The median last 32 °F freeze at MEDFORD ROGUE VLY AP, OR is April 8: half of years see a later one. One year in ten, a freeze still comes after April 30; nine years in ten, it comes after March 17. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.

When is the first frost in Medford, OR?

The median first 32 °F freeze of fall is October 29. One year in ten it arrives before October 14; nine years in ten, before November 16.

How long is the growing season in Medford, OR?

204 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 176 days; one year in ten, at least 232 days.

What growing zone is Medford, OR?

USDA hardiness zone 8b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 97504. 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 Medford, OR?

Start Roma VF (determinate paste) seeds indoors around Feb 25 and transplant around Apr 15, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Apr 30. First ripe fruit lands around Jun 29.

When should I plant peppers in Medford, OR?

Sow jalapeño indoors on a heat mat around Feb 11; transplant no earlier than Apr 15, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around Jun 29.

Nearby in Oregon

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