When Is the Last Frost?

Sixes, OR frost dates

Last spring frostFeb 17median date
First fall frostDec 3median date
Growing season289 daysfrost-free
Hardiness zone9bZone 9b

How Sixes compares

Frost probability

Last spring frost
Chance of frost afterDate
90% (early)December 28
50% (median)February 17
10% (safe for tender plants)March 19
First fall frost
Chance of frost beforeDate
10% (early)November 8
50% (median)December 3
90% (late)January 11

Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.

Planting calendar for Sixes, OR

Sixes, OR frost dates — last frost Feb 17, first frost Dec 3, zone 9b. whenisthelastfrost.com

Crop
JFMAMJJASOND
Start indoors: Nov 25 to Dec 9Transplant outside: Jan 20 to Feb 3
Start indoors: Dec 9 to Dec 23Transplant outside: Mar 3 to Mar 17
Start indoors: Dec 9 to Dec 23Transplant outside: Mar 3 to Mar 17
Start indoors: Dec 23 to Jan 6Start indoors: Dec 23 to Jan 6Transplant outside: Feb 24 to Mar 10
Start indoors: Dec 23 to Jan 6Start indoors: Dec 23 to Jan 6Transplant outside: Jan 27 to Feb 10Sow outdoors: Jan 20 to Feb 24Plant for fall: Oct 8 to Nov 5
Start indoors: Dec 23 to Jan 6Start indoors: Dec 23 to Jan 6Transplant outside: Jan 20 to Feb 3Sow outdoors: Jan 20 to Feb 3Plant for fall: Sep 24 to Oct 15
Start indoors: Dec 23 to Jan 6Start indoors: Dec 23 to Jan 6Transplant outside: Feb 3 to Feb 17Plant for fall: Aug 27 to Sep 17
Start indoors: Dec 23 to Jan 6Start indoors: Dec 23 to Jan 6Transplant outside: Jan 27 to Feb 10Plant for fall: Aug 27 to Sep 17
Start indoors: Dec 23 to Jan 6Start indoors: Dec 23 to Jan 6Transplant outside: Feb 3 to Feb 17Plant for fall: Aug 27 to Sep 17
Start indoors: Jan 6 to Jan 20Transplant outside: Mar 10 to Mar 24Sow outdoors: Mar 10 to Mar 24
Start indoors: Jan 6 to Jan 20Transplant outside: Feb 24 to Mar 10
Sow outdoors: Jan 6 to Jan 27Plant for fall: Sep 10 to Oct 1
Sow outdoors: Jan 6 to Jan 27Plant for fall: Oct 8 to Oct 29
Sow outdoors: Jan 13 to Feb 24Plant for fall: Oct 22 to Nov 12
Start indoors: Jan 20 to Jan 27Transplant outside: Mar 3 to Mar 10Sow outdoors: Feb 24 to Mar 10Plant for fall: Sep 17 to Oct 1
Start indoors: Jan 20 to Jan 27Sow outdoors: Feb 24 to Mar 10Plant for fall: Sep 24 to Oct 8
Start indoors: Jan 20 to Jan 27Sow outdoors: Feb 24 to Mar 10
Start indoors: Jan 20 to Jan 27Transplant outside: Mar 3 to Mar 17
Sow outdoors: Jan 27 to Feb 24Plant for fall: Sep 10 to Sep 24
Sow outdoors: Jan 27 to Feb 24Plant for fall: Sep 24 to Oct 8
Sow outdoors: Jan 27 to Feb 17
Sow outdoors: Feb 3 to Mar 3Plant for fall: Sep 24 to Oct 8
Sow outdoors: Feb 3 to Feb 24Plant for fall: Oct 8 to Oct 29
Sow outdoors: Feb 24 to Mar 17Plant for fall: Sep 17 to Oct 1
Sow outdoors: Feb 24 to Mar 10
Transplant outside: Mar 3 to Mar 24
Plant for fall: Nov 19 to Dec 24
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates

When to plant vegetables in Sixes, OR

CropStart indoorsTransplantSow outdoorsFall crop
OnionsNov 25 – Dec 9Jan 20 – Feb 3——
PeppersDec 9 – Dec 23Mar 3 – Mar 17——
EggplantDec 9 – Dec 23Mar 3 – Mar 17——
TomatoesDec 23 – Jan 6Feb 24 – Mar 10——
LettuceDec 23 – Jan 6Jan 27 – Feb 10Jan 20 – Feb 24Oct 8 – Nov 5
KaleDec 23 – Jan 6Jan 20 – Feb 3Jan 20 – Feb 3Sep 24 – Oct 15
BroccoliDec 23 – Jan 6Feb 3 – Feb 17—Aug 27 – Sep 17
CabbageDec 23 – Jan 6Jan 27 – Feb 10—Aug 27 – Sep 17
CauliflowerDec 23 – Jan 6Feb 3 – Feb 17—Aug 27 – Sep 17
OkraJan 6 – Jan 20Mar 10 – Mar 24Mar 10 – Mar 24—
BasilJan 6 – Jan 20Feb 24 – Mar 10——
Peas——Jan 6 – Jan 27Sep 10 – Oct 1
Spinach——Jan 6 – Jan 27Oct 8 – Oct 29
Radishes——Jan 13 – Feb 24Oct 22 – Nov 12
CucumbersJan 20 – Jan 27Mar 3 – Mar 10Feb 24 – Mar 10Sep 17 – Oct 1
Zucchini & Summer SquashJan 20 – Jan 27—Feb 24 – Mar 10Sep 24 – Oct 8
Winter Squash & PumpkinsJan 20 – Jan 27—Feb 24 – Mar 10—
Melons & WatermelonJan 20 – Jan 27Mar 3 – Mar 17——
Carrots——Jan 27 – Feb 24Sep 10 – Sep 24
Beets——Jan 27 – Feb 24Sep 24 – Oct 8
Potatoes——Jan 27 – Feb 17—
Swiss Chard——Feb 3 – Mar 3Sep 24 – Oct 8
Cilantro——Feb 3 – Feb 24Oct 8 – Oct 29
Green Beans——Feb 24 – Mar 17Sep 17 – Oct 1
Sweet Corn——Feb 24 – Mar 10—
Sweet Potatoes—Mar 3 – Mar 24——
Garlic———Nov 19 – Dec 24

Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.

About these dates

Based on 1991–2020 NOAA climate normals for the Port Orford #2, OR weather station, 9 km away (elevation 43 ft (13 m)).

Frost dates near Sixes

Frequently asked questions

When is the last frost in Sixes, OR?

The median last spring frost in Sixes, OR is February 17. There is still about a 10% chance of frost after March 19, so wait until then to plant frost-tender crops like tomatoes and peppers.

When is the first frost in Sixes, OR?

The median first fall frost is December 3, with about a 10% chance of frost before November 8.

How long is the growing season in Sixes, OR?

About 289 days between the median last spring frost and first fall frost.

What planting zone is Sixes, OR?

Sixes, OR is in USDA hardiness zone 9b.

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