Enumclaw, WA frost dates
Last spring frostApr 7median date
First fall frostOct 30median date
Growing season206 daysfrost-free
Hardiness zone8aZone 8a
How Enumclaw compares
- In 8 years out of 10, the last spring frost in Enumclaw falls between March 16 and April 27, a 42-day window. The first fall frost falls between October 8 and November 22.
- The median last frost is 14 days earlier than the Washington median of Apr 21.
- Its 206-day growing season is longer than 69% of the 491 Washington places with a regular frost season (state median 182 days).
- The last frost is 9 days later than the zone 8a median of Mar 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8a chart.
- The weather station records an average of 50 nights a year at or below 32°F.
- Compared with Auburn, WA, 13 km away, the last frost here is 18 days later than there and the growing season is 29 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 16 |
| 50% (median) | April 7 |
| 10% (safe for tender plants) | April 27 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 8 |
| 50% (median) | October 30 |
| 90% (late) | November 22 |
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 Enumclaw, WA
Enumclaw, WA frost dates — last frost Apr 7, first frost Oct 30, zone 8a. whenisthelastfrost.com
Crop
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Start indoors: Jan 13 to Jan 27Transplant outside: Mar 10 to Mar 24
Start indoors: Jan 27 to Feb 10Transplant outside: Apr 21 to May 5
Start indoors: Jan 27 to Feb 10Transplant outside: Apr 21 to May 5
Start indoors: Feb 10 to Feb 24Transplant outside: Apr 14 to Apr 28
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 17 to Mar 31Sow outdoors: Mar 10 to Apr 14Plant for fall: Sep 4 to Oct 2
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 10 to Mar 24Sow outdoors: Mar 10 to Mar 24Plant for fall: Aug 21 to Sep 11
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 24 to Apr 7Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 17 to Mar 31Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 24 to Apr 7Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 24 to Mar 10Transplant outside: Apr 28 to May 12Sow outdoors: Apr 28 to May 12
Start indoors: Feb 24 to Mar 10Transplant outside: Apr 14 to Apr 28
Sow outdoors: Feb 24 to Mar 17Plant for fall: Aug 7 to Aug 28
Sow outdoors: Feb 24 to Mar 17Plant for fall: Sep 4 to Sep 25
Sow outdoors: Mar 3 to Apr 14Plant for fall: Sep 18 to Oct 9
Start indoors: Mar 10 to Mar 17Transplant outside: Apr 21 to Apr 28Sow outdoors: Apr 14 to Apr 28Plant for fall: Aug 14 to Aug 28
Start indoors: Mar 10 to Mar 17Sow outdoors: Apr 14 to Apr 28Plant for fall: Aug 21 to Sep 4
Start indoors: Mar 10 to Mar 17Sow outdoors: Apr 14 to Apr 28
Start indoors: Mar 10 to Mar 17Transplant outside: Apr 21 to May 5
Sow outdoors: Mar 17 to Apr 14Plant for fall: Aug 7 to Aug 21
Sow outdoors: Mar 17 to Apr 14Plant for fall: Aug 21 to Sep 4
Sow outdoors: Mar 17 to Apr 7
Sow outdoors: Mar 24 to Apr 21Plant for fall: Aug 21 to Sep 4
Sow outdoors: Mar 24 to Apr 14Plant for fall: Sep 4 to Sep 25
Sow outdoors: Apr 14 to May 5Plant for fall: Aug 14 to Aug 28
Sow outdoors: Apr 14 to Apr 28
Transplant outside: Apr 21 to May 12
Plant for fall: Oct 16 to Nov 20
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Enumclaw, WA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 13 – Jan 27 | Mar 10 – Mar 24 | — | — |
| Peppers | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Eggplant | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Tomatoes | Feb 10 – Feb 24 | Apr 14 – Apr 28 | — | — |
| Lettuce | Feb 10 – Feb 24 | Mar 17 – Mar 31 | Mar 10 – Apr 14 | Sep 4 – Oct 2 |
| Kale | Feb 10 – Feb 24 | Mar 10 – Mar 24 | Mar 10 – Mar 24 | Aug 21 – Sep 11 |
| Broccoli | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 24 – Aug 14 |
| Cabbage | Feb 10 – Feb 24 | Mar 17 – Mar 31 | — | Jul 24 – Aug 14 |
| Cauliflower | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 24 – Aug 14 |
| Okra | Feb 24 – Mar 10 | Apr 28 – May 12 | Apr 28 – May 12 | — |
| Basil | Feb 24 – Mar 10 | Apr 14 – Apr 28 | — | — |
| Peas | — | — | Feb 24 – Mar 17 | Aug 7 – Aug 28 |
| Spinach | — | — | Feb 24 – Mar 17 | Sep 4 – Sep 25 |
| Radishes | — | — | Mar 3 – Apr 14 | Sep 18 – Oct 9 |
| Cucumbers | Mar 10 – Mar 17 | Apr 21 – Apr 28 | Apr 14 – Apr 28 | Aug 14 – Aug 28 |
| Zucchini & Summer Squash | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | Aug 21 – Sep 4 |
| Winter Squash & Pumpkins | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | — |
| Melons & Watermelon | Mar 10 – Mar 17 | Apr 21 – May 5 | — | — |
| Carrots | — | — | Mar 17 – Apr 14 | Aug 7 – Aug 21 |
| Beets | — | — | Mar 17 – Apr 14 | Aug 21 – Sep 4 |
| Potatoes | — | — | Mar 17 – Apr 7 | — |
| Swiss Chard | — | — | Mar 24 – Apr 21 | Aug 21 – Sep 4 |
| Cilantro | — | — | Mar 24 – Apr 14 | Sep 4 – Sep 25 |
| Green Beans | — | — | Apr 14 – May 5 | Aug 14 – Aug 28 |
| Sweet Corn | — | — | Apr 14 – Apr 28 | — |
| Sweet Potatoes | — | Apr 21 – May 12 | — | — |
| Garlic | — | — | — | Oct 16 – Nov 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 Buckley 1 Ne, WA weather station, 11 km away (elevation 686 ft (209 m)).
Frost dates near Enumclaw
- Black Diamond Apr 20 · Oct 25
- Buckley Apr 7 · Oct 30
- Maple Valley Apr 20 · Oct 25
- Auburn Mar 20 · Nov 10
- Ravensdale Apr 3 · Nov 11
- South Prairie Apr 7 · Oct 30
- Pacific Mar 8 · Nov 14
- Bonney Lake Apr 11 · Oct 30
- Wilkeson Apr 7 · Oct 30
- Hobart Apr 20 · Oct 25
Frequently asked questions
When is the last frost in Enumclaw, WA?
The median last spring frost in Enumclaw, WA is April 7. There is still about a 10% chance of frost after April 27, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Enumclaw, WA?
The median first fall frost is October 30, with about a 10% chance of frost before October 8.
How long is the growing season in Enumclaw, WA?
About 206 days between the median last spring frost and first fall frost.
What planting zone is Enumclaw, WA?
Enumclaw, WA is in USDA hardiness zone 8a.