Ravensdale, WA frost dates
Last spring frostApr 3median date
First fall frostNov 11median date
Growing season222 daysfrost-free
Hardiness zone8bZone 8b
How Ravensdale compares
- In 8 years out of 10, the last spring frost in Ravensdale falls between March 7 and May 2, a 56-day window. The first fall frost falls between October 25 and December 3.
- The median last frost is 18 days earlier than the Washington median of Apr 21.
- Its 222-day growing season is longer than 76% of the 491 Washington places with a regular frost season (state median 182 days).
- The last frost is 18 days later than the zone 8b median of Mar 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8b chart.
- The weather station records an average of 54 nights a year at or below 32°F.
- Compared with Auburn, WA, 24 km away, the last frost here is 14 days later than there and the growing season is 13 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 7 |
| 50% (median) | April 3 |
| 10% (safe for tender plants) | May 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 25 |
| 50% (median) | November 11 |
| 90% (late) | December 3 |
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 Ravensdale, WA
Ravensdale, WA frost dates — last frost Apr 3, first frost Nov 11, zone 8b. whenisthelastfrost.com
Crop
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Start indoors: Jan 9 to Jan 23Transplant outside: Mar 6 to Mar 20
Start indoors: Jan 23 to Feb 6Transplant outside: Apr 17 to May 1
Start indoors: Jan 23 to Feb 6Transplant outside: Apr 17 to May 1
Start indoors: Feb 6 to Feb 20Transplant outside: Apr 10 to Apr 24
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 13 to Mar 27Sow outdoors: Mar 6 to Apr 10Plant for fall: Sep 16 to Oct 14
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 6 to Mar 20Sow outdoors: Mar 6 to Mar 20Plant for fall: Sep 2 to Sep 23
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 20 to Apr 3Plant for fall: Aug 5 to Aug 26
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 13 to Mar 27Plant for fall: Aug 5 to Aug 26
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 20 to Apr 3Plant for fall: Aug 5 to Aug 26
Start indoors: Feb 20 to Mar 6Transplant outside: Apr 24 to May 8Sow outdoors: Apr 24 to May 8
Start indoors: Feb 20 to Mar 6Transplant outside: Apr 10 to Apr 24
Sow outdoors: Feb 20 to Mar 13Plant for fall: Aug 19 to Sep 9
Sow outdoors: Feb 20 to Mar 13Plant for fall: Sep 16 to Oct 7
Sow outdoors: Feb 27 to Apr 10Plant for fall: Sep 30 to Oct 21
Start indoors: Mar 6 to Mar 13Transplant outside: Apr 17 to Apr 24Sow outdoors: Apr 10 to Apr 24Plant for fall: Aug 26 to Sep 9
Start indoors: Mar 6 to Mar 13Sow outdoors: Apr 10 to Apr 24Plant for fall: Sep 2 to Sep 16
Start indoors: Mar 6 to Mar 13Sow outdoors: Apr 10 to Apr 24
Start indoors: Mar 6 to Mar 13Transplant outside: Apr 17 to May 1
Sow outdoors: Mar 13 to Apr 10Plant for fall: Aug 19 to Sep 2
Sow outdoors: Mar 13 to Apr 10Plant for fall: Sep 2 to Sep 16
Sow outdoors: Mar 13 to Apr 3
Sow outdoors: Mar 20 to Apr 17Plant for fall: Sep 2 to Sep 16
Sow outdoors: Mar 20 to Apr 10Plant for fall: Sep 16 to Oct 7
Sow outdoors: Apr 10 to May 1Plant for fall: Aug 26 to Sep 9
Sow outdoors: Apr 10 to Apr 24
Transplant outside: Apr 17 to May 8
Plant for fall: Oct 28 to Dec 2
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Ravensdale, WA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 9 – Jan 23 | Mar 6 – Mar 20 | — | — |
| Peppers | Jan 23 – Feb 6 | Apr 17 – May 1 | — | — |
| Eggplant | Jan 23 – Feb 6 | Apr 17 – May 1 | — | — |
| Tomatoes | Feb 6 – Feb 20 | Apr 10 – Apr 24 | — | — |
| Lettuce | Feb 6 – Feb 20 | Mar 13 – Mar 27 | Mar 6 – Apr 10 | Sep 16 – Oct 14 |
| Kale | Feb 6 – Feb 20 | Mar 6 – Mar 20 | Mar 6 – Mar 20 | Sep 2 – Sep 23 |
| Broccoli | Feb 6 – Feb 20 | Mar 20 – Apr 3 | — | Aug 5 – Aug 26 |
| Cabbage | Feb 6 – Feb 20 | Mar 13 – Mar 27 | — | Aug 5 – Aug 26 |
| Cauliflower | Feb 6 – Feb 20 | Mar 20 – Apr 3 | — | Aug 5 – Aug 26 |
| Okra | Feb 20 – Mar 6 | Apr 24 – May 8 | Apr 24 – May 8 | — |
| Basil | Feb 20 – Mar 6 | Apr 10 – Apr 24 | — | — |
| Peas | — | — | Feb 20 – Mar 13 | Aug 19 – Sep 9 |
| Spinach | — | — | Feb 20 – Mar 13 | Sep 16 – Oct 7 |
| Radishes | — | — | Feb 27 – Apr 10 | Sep 30 – Oct 21 |
| Cucumbers | Mar 6 – Mar 13 | Apr 17 – Apr 24 | Apr 10 – Apr 24 | Aug 26 – Sep 9 |
| Zucchini & Summer Squash | Mar 6 – Mar 13 | — | Apr 10 – Apr 24 | Sep 2 – Sep 16 |
| Winter Squash & Pumpkins | Mar 6 – Mar 13 | — | Apr 10 – Apr 24 | — |
| Melons & Watermelon | Mar 6 – Mar 13 | Apr 17 – May 1 | — | — |
| Carrots | — | — | Mar 13 – Apr 10 | Aug 19 – Sep 2 |
| Beets | — | — | Mar 13 – Apr 10 | Sep 2 – Sep 16 |
| Potatoes | — | — | Mar 13 – Apr 3 | — |
| Swiss Chard | — | — | Mar 20 – Apr 17 | Sep 2 – Sep 16 |
| Cilantro | — | — | Mar 20 – Apr 10 | Sep 16 – Oct 7 |
| Green Beans | — | — | Apr 10 – May 1 | Aug 26 – Sep 9 |
| Sweet Corn | — | — | Apr 10 – Apr 24 | — |
| Sweet Potatoes | — | Apr 17 – May 8 | — | — |
| Garlic | — | — | — | Oct 28 – Dec 2 |
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 Palmer 3 Ese, WA weather station, 5 km away (elevation 919 ft (280 m)).
Frost dates near Ravensdale
- Black Diamond Apr 20 · Oct 25
- Hobart Apr 20 · Oct 25
- Enumclaw Apr 7 · Oct 30
- Maple Valley Apr 20 · Oct 25
- North Bend Apr 23 · Nov 1
- Snoqualmie Mar 30 · Nov 7
- Preston Mar 30 · Nov 7
- Issaquah Mar 30 · Nov 7
- Auburn Mar 20 · Nov 10
- Buckley Apr 7 · Oct 30
Frequently asked questions
When is the last frost in Ravensdale, WA?
The median last spring frost in Ravensdale, WA is April 3. There is still about a 10% chance of frost after May 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Ravensdale, WA?
The median first fall frost is November 11, with about a 10% chance of frost before October 25.
How long is the growing season in Ravensdale, WA?
About 222 days between the median last spring frost and first fall frost.
What planting zone is Ravensdale, WA?
Ravensdale, WA is in USDA hardiness zone 8b.