Langlois, OR frost dates
Last spring frostMar 16median date
First fall frostNov 29median date
Growing season258 daysfrost-free
Hardiness zone9aZone 9a
How Langlois compares
- In 8 years out of 10, the last spring frost in Langlois falls between February 6 and April 15, a 68-day window. The first fall frost falls between November 1 and January 4.
- The median last frost is 31 days earlier than the Oregon median of Apr 16.
- Its 258-day growing season is longer than 93% of the 345 Oregon places with a regular frost season (state median 193 days).
- The last frost is 13 days later than the zone 9a median of Mar 3. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 9a chart.
- The weather station records an average of 15 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 6 |
| 50% (median) | March 16 |
| 10% (safe for tender plants) | April 15 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 1 |
| 50% (median) | November 29 |
| 90% (late) | January 4 |
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 Langlois, OR
Langlois, OR frost dates — last frost Mar 16, first frost Nov 29, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 22 to Jan 5Start indoors: Dec 22 to Jan 5Transplant outside: Feb 16 to Mar 2
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 30 to Apr 13
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 30 to Apr 13
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 23 to Apr 6
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 23 to Mar 9Sow outdoors: Feb 16 to Mar 23Plant for fall: Oct 4 to Nov 1
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 16 to Mar 2Sow outdoors: Feb 16 to Mar 2Plant for fall: Sep 20 to Oct 11
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 2 to Mar 16Plant for fall: Aug 23 to Sep 13
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 23 to Mar 9Plant for fall: Aug 23 to Sep 13
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 2 to Mar 16Plant for fall: Aug 23 to Sep 13
Start indoors: Feb 2 to Feb 16Transplant outside: Apr 6 to Apr 20Sow outdoors: Apr 6 to Apr 20
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 23 to Apr 6
Sow outdoors: Feb 2 to Feb 23Plant for fall: Sep 6 to Sep 27
Sow outdoors: Feb 2 to Feb 23Plant for fall: Oct 4 to Oct 25
Sow outdoors: Feb 9 to Mar 23Plant for fall: Oct 18 to Nov 8
Start indoors: Feb 16 to Feb 23Transplant outside: Mar 30 to Apr 6Sow outdoors: Mar 23 to Apr 6Plant for fall: Sep 13 to Sep 27
Start indoors: Feb 16 to Feb 23Sow outdoors: Mar 23 to Apr 6Plant for fall: Sep 20 to Oct 4
Start indoors: Feb 16 to Feb 23Sow outdoors: Mar 23 to Apr 6
Start indoors: Feb 16 to Feb 23Transplant outside: Mar 30 to Apr 13
Sow outdoors: Feb 23 to Mar 23Plant for fall: Sep 6 to Sep 20
Sow outdoors: Feb 23 to Mar 23Plant for fall: Sep 20 to Oct 4
Sow outdoors: Feb 23 to Mar 16
Sow outdoors: Mar 2 to Mar 30Plant for fall: Sep 20 to Oct 4
Sow outdoors: Mar 2 to Mar 23Plant for fall: Oct 4 to Oct 25
Sow outdoors: Mar 23 to Apr 13Plant for fall: Sep 13 to Sep 27
Sow outdoors: Mar 23 to Apr 6
Transplant outside: Mar 30 to Apr 20
Plant for fall: Nov 15 to Dec 20
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Langlois, OR
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 22 – Jan 5 | Feb 16 – Mar 2 | — | — |
| Peppers | Jan 5 – Jan 19 | Mar 30 – Apr 13 | — | — |
| Eggplant | Jan 5 – Jan 19 | Mar 30 – Apr 13 | — | — |
| Tomatoes | Jan 19 – Feb 2 | Mar 23 – Apr 6 | — | — |
| Lettuce | Jan 19 – Feb 2 | Feb 23 – Mar 9 | Feb 16 – Mar 23 | Oct 4 – Nov 1 |
| Kale | Jan 19 – Feb 2 | Feb 16 – Mar 2 | Feb 16 – Mar 2 | Sep 20 – Oct 11 |
| Broccoli | Jan 19 – Feb 2 | Mar 2 – Mar 16 | — | Aug 23 – Sep 13 |
| Cabbage | Jan 19 – Feb 2 | Feb 23 – Mar 9 | — | Aug 23 – Sep 13 |
| Cauliflower | Jan 19 – Feb 2 | Mar 2 – Mar 16 | — | Aug 23 – Sep 13 |
| Okra | Feb 2 – Feb 16 | Apr 6 – Apr 20 | Apr 6 – Apr 20 | — |
| Basil | Feb 2 – Feb 16 | Mar 23 – Apr 6 | — | — |
| Peas | — | — | Feb 2 – Feb 23 | Sep 6 – Sep 27 |
| Spinach | — | — | Feb 2 – Feb 23 | Oct 4 – Oct 25 |
| Radishes | — | — | Feb 9 – Mar 23 | Oct 18 – Nov 8 |
| Cucumbers | Feb 16 – Feb 23 | Mar 30 – Apr 6 | Mar 23 – Apr 6 | Sep 13 – Sep 27 |
| Zucchini & Summer Squash | Feb 16 – Feb 23 | — | Mar 23 – Apr 6 | Sep 20 – Oct 4 |
| Winter Squash & Pumpkins | Feb 16 – Feb 23 | — | Mar 23 – Apr 6 | — |
| Melons & Watermelon | Feb 16 – Feb 23 | Mar 30 – Apr 13 | — | — |
| Carrots | — | — | Feb 23 – Mar 23 | Sep 6 – Sep 20 |
| Beets | — | — | Feb 23 – Mar 23 | Sep 20 – Oct 4 |
| Potatoes | — | — | Feb 23 – Mar 16 | — |
| Swiss Chard | — | — | Mar 2 – Mar 30 | Sep 20 – Oct 4 |
| Cilantro | — | — | Mar 2 – Mar 23 | Oct 4 – Oct 25 |
| Green Beans | — | — | Mar 23 – Apr 13 | Sep 13 – Sep 27 |
| Sweet Corn | — | — | Mar 23 – Apr 6 | — |
| Sweet Potatoes | — | Mar 30 – Apr 20 | — | — |
| Garlic | — | — | — | Nov 15 – Dec 20 |
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 Langlois #2, OR weather station, about 1 km away (elevation 89 ft (27 m)).
Frost dates near Langlois
- Sixes Feb 17 · Dec 3
- Port Orford Feb 17 · Dec 3
- Bandon Mar 9 · Nov 27
- Broadbent Mar 21 · Nov 14
- Powers Mar 21 · Nov 14
- Myrtle Point Mar 28 · Nov 6
- Wedderburn Feb 17 · Dec 3
- Coquille Mar 28 · Nov 6
- Coos Bay Mar 28 · Nov 6
- Ophir Feb 16 · Dec 16
Frequently asked questions
When is the last frost in Langlois, OR?
The median last spring frost in Langlois, OR is March 16. There is still about a 10% chance of frost after April 15, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Langlois, OR?
The median first fall frost is November 29, with about a 10% chance of frost before November 1.
How long is the growing season in Langlois, OR?
About 258 days between the median last spring frost and first fall frost.
What planting zone is Langlois, OR?
Langlois, OR is in USDA hardiness zone 9a.