Burton, WA frost dates
Last spring frostMar 2median date
First fall frostNov 23median date
Growing season266 daysfrost-free
Hardiness zone9aZone 9a
How Burton compares
- In 8 years out of 10, the last spring frost in Burton falls between February 5 and March 23, a 46-day window. The first fall frost falls between November 6 and December 15.
- The median last frost is 50 days earlier than the Washington median of Apr 21.
- Its 266-day growing season is among the longest of the 491 Washington places with a regular frost season.
- The last frost is typical for zone 9a, where the median is Mar 3.
- The weather station records an average of 25 nights a year at or below 32°F.
- Compared with Federal Way, WA, 16 km away, the last frost here is 18 days earlier than there and the growing season is 31 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 5 |
| 50% (median) | March 2 |
| 10% (safe for tender plants) | March 23 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 6 |
| 50% (median) | November 23 |
| 90% (late) | December 15 |
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 Burton, WA
Burton, WA frost dates — last frost Mar 2, first frost Nov 23, zone 9a. whenisthelastfrost.com
Crop
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Start indoors: Dec 8 to Dec 22Transplant outside: Feb 2 to Feb 16
Start indoors: Dec 22 to Jan 5Start indoors: Dec 22 to Jan 5Transplant outside: Mar 16 to Mar 30
Start indoors: Dec 22 to Jan 5Start indoors: Dec 22 to Jan 5Transplant outside: Mar 16 to Mar 30
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 9 to Mar 23
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 9 to Feb 23Sow outdoors: Feb 2 to Mar 9Plant for fall: Sep 28 to Oct 26
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 2 to Feb 16Sow outdoors: Feb 2 to Feb 16Plant for fall: Sep 14 to Oct 5
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 16 to Mar 2Plant for fall: Aug 17 to Sep 7
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 9 to Feb 23Plant for fall: Aug 17 to Sep 7
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 16 to Mar 2Plant for fall: Aug 17 to Sep 7
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 23 to Apr 6Sow outdoors: Mar 23 to Apr 6
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 9 to Mar 23
Sow outdoors: Jan 19 to Feb 9Plant for fall: Aug 31 to Sep 21
Sow outdoors: Jan 19 to Feb 9Plant for fall: Sep 28 to Oct 19
Sow outdoors: Jan 26 to Mar 9Plant for fall: Oct 12 to Nov 2
Start indoors: Feb 2 to Feb 9Transplant outside: Mar 16 to Mar 23Sow outdoors: Mar 9 to Mar 23Plant for fall: Sep 7 to Sep 21
Start indoors: Feb 2 to Feb 9Sow outdoors: Mar 9 to Mar 23Plant for fall: Sep 14 to Sep 28
Start indoors: Feb 2 to Feb 9Sow outdoors: Mar 9 to Mar 23
Start indoors: Feb 2 to Feb 9Transplant outside: Mar 16 to Mar 30
Sow outdoors: Feb 9 to Mar 9Plant for fall: Aug 31 to Sep 14
Sow outdoors: Feb 9 to Mar 9Plant for fall: Sep 14 to Sep 28
Sow outdoors: Feb 9 to Mar 2
Sow outdoors: Feb 16 to Mar 16Plant for fall: Sep 14 to Sep 28
Sow outdoors: Feb 16 to Mar 9Plant for fall: Sep 28 to Oct 19
Sow outdoors: Mar 9 to Mar 30Plant for fall: Sep 7 to Sep 21
Sow outdoors: Mar 9 to Mar 23
Transplant outside: Mar 16 to Apr 6
Plant for fall: Nov 9 to Dec 14
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Burton, WA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 8 – Dec 22 | Feb 2 – Feb 16 | — | — |
| Peppers | Dec 22 – Jan 5 | Mar 16 – Mar 30 | — | — |
| Eggplant | Dec 22 – Jan 5 | Mar 16 – Mar 30 | — | — |
| Tomatoes | Jan 5 – Jan 19 | Mar 9 – Mar 23 | — | — |
| Lettuce | Jan 5 – Jan 19 | Feb 9 – Feb 23 | Feb 2 – Mar 9 | Sep 28 – Oct 26 |
| Kale | Jan 5 – Jan 19 | Feb 2 – Feb 16 | Feb 2 – Feb 16 | Sep 14 – Oct 5 |
| Broccoli | Jan 5 – Jan 19 | Feb 16 – Mar 2 | — | Aug 17 – Sep 7 |
| Cabbage | Jan 5 – Jan 19 | Feb 9 – Feb 23 | — | Aug 17 – Sep 7 |
| Cauliflower | Jan 5 – Jan 19 | Feb 16 – Mar 2 | — | Aug 17 – Sep 7 |
| Okra | Jan 19 – Feb 2 | Mar 23 – Apr 6 | Mar 23 – Apr 6 | — |
| Basil | Jan 19 – Feb 2 | Mar 9 – Mar 23 | — | — |
| Peas | — | — | Jan 19 – Feb 9 | Aug 31 – Sep 21 |
| Spinach | — | — | Jan 19 – Feb 9 | Sep 28 – Oct 19 |
| Radishes | — | — | Jan 26 – Mar 9 | Oct 12 – Nov 2 |
| Cucumbers | Feb 2 – Feb 9 | Mar 16 – Mar 23 | Mar 9 – Mar 23 | Sep 7 – Sep 21 |
| Zucchini & Summer Squash | Feb 2 – Feb 9 | — | Mar 9 – Mar 23 | Sep 14 – Sep 28 |
| Winter Squash & Pumpkins | Feb 2 – Feb 9 | — | Mar 9 – Mar 23 | — |
| Melons & Watermelon | Feb 2 – Feb 9 | Mar 16 – Mar 30 | — | — |
| Carrots | — | — | Feb 9 – Mar 9 | Aug 31 – Sep 14 |
| Beets | — | — | Feb 9 – Mar 9 | Sep 14 – Sep 28 |
| Potatoes | — | — | Feb 9 – Mar 2 | — |
| Swiss Chard | — | — | Feb 16 – Mar 16 | Sep 14 – Sep 28 |
| Cilantro | — | — | Feb 16 – Mar 9 | Sep 28 – Oct 19 |
| Green Beans | — | — | Mar 9 – Mar 30 | Sep 7 – Sep 21 |
| Sweet Corn | — | — | Mar 9 – Mar 23 | — |
| Sweet Potatoes | — | Mar 16 – Apr 6 | — | — |
| Garlic | — | — | — | Nov 9 – Dec 14 |
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 Seattle Tacoma Intl Ap, WA weather station, 13 km away (elevation 371 ft (113 m)).
Frost dates near Burton
- Vashon Mar 2 · Nov 23
- Olalla Mar 11 · Nov 21
- Seahurst Mar 2 · Nov 23
- Burley Mar 29 · Nov 14
- Wauna Mar 11 · Nov 21
- Southworth Mar 13 · Nov 17
- Gig Harbor Mar 11 · Nov 21
- South Colby Mar 29 · Nov 14
- Federal Way Mar 20 · Nov 10
- Port Orchard Mar 29 · Nov 14
Frequently asked questions
When is the last frost in Burton, WA?
The median last spring frost in Burton, WA is March 2. There is still about a 10% chance of frost after March 23, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Burton, WA?
The median first fall frost is November 23, with about a 10% chance of frost before November 6.
How long is the growing season in Burton, WA?
About 266 days between the median last spring frost and first fall frost.
What planting zone is Burton, WA?
Burton, WA is in USDA hardiness zone 9a.