Lake Stevens, WA frost dates
Last spring frostMar 24median date
First fall frostNov 2median date
Growing season223 daysfrost-free
Hardiness zone8bZone 8b
How Lake Stevens compares
- In 8 years out of 10, the last spring frost in Lake Stevens falls between March 4 and April 11, a 38-day window. The first fall frost falls between October 16 and November 23.
- The median last frost is 28 days earlier than the Washington median of Apr 21.
- Its 223-day growing season is longer than 77% of the 491 Washington places with a regular frost season (state median 182 days).
- The last frost is 8 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 51 nights a year at or below 32°F.
- Lake Stevens shares its weather station with Marysville, WA, 11 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 4 |
| 50% (median) | March 24 |
| 10% (safe for tender plants) | April 11 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 16 |
| 50% (median) | November 2 |
| 90% (late) | November 23 |
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 Lake Stevens, WA
Lake Stevens, WA frost dates — last frost Mar 24, first frost Nov 2, zone 8b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 30 to Jan 13Start indoors: Dec 30 to Jan 13Transplant outside: Feb 24 to Mar 10
Start indoors: Jan 13 to Jan 27Transplant outside: Apr 7 to Apr 21
Start indoors: Jan 13 to Jan 27Transplant outside: Apr 7 to Apr 21
Start indoors: Jan 27 to Feb 10Transplant outside: Mar 31 to Apr 14
Start indoors: Jan 27 to Feb 10Transplant outside: Mar 3 to Mar 17Sow outdoors: Feb 24 to Mar 31Plant for fall: Sep 7 to Oct 5
Start indoors: Jan 27 to Feb 10Transplant outside: Feb 24 to Mar 10Sow outdoors: Feb 24 to Mar 10Plant for fall: Aug 24 to Sep 14
Start indoors: Jan 27 to Feb 10Transplant outside: Mar 10 to Mar 24Plant for fall: Jul 27 to Aug 17
Start indoors: Jan 27 to Feb 10Transplant outside: Mar 3 to Mar 17Plant for fall: Jul 27 to Aug 17
Start indoors: Jan 27 to Feb 10Transplant outside: Mar 10 to Mar 24Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 10 to Feb 24Transplant outside: Apr 14 to Apr 28Sow outdoors: Apr 14 to Apr 28
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 31 to Apr 14
Sow outdoors: Feb 10 to Mar 3Plant for fall: Aug 10 to Aug 31
Sow outdoors: Feb 10 to Mar 3Plant for fall: Sep 7 to Sep 28
Sow outdoors: Feb 17 to Mar 31Plant for fall: Sep 21 to Oct 12
Start indoors: Feb 24 to Mar 3Transplant outside: Apr 7 to Apr 14Sow outdoors: Mar 31 to Apr 14Plant for fall: Aug 17 to Aug 31
Start indoors: Feb 24 to Mar 3Sow outdoors: Mar 31 to Apr 14Plant for fall: Aug 24 to Sep 7
Start indoors: Feb 24 to Mar 3Sow outdoors: Mar 31 to Apr 14
Start indoors: Feb 24 to Mar 3Transplant outside: Apr 7 to Apr 21
Sow outdoors: Mar 3 to Mar 31Plant for fall: Aug 10 to Aug 24
Sow outdoors: Mar 3 to Mar 31Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 3 to Mar 24
Sow outdoors: Mar 10 to Apr 7Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 10 to Mar 31Plant for fall: Sep 7 to Sep 28
Sow outdoors: Mar 31 to Apr 21Plant for fall: Aug 17 to Aug 31
Sow outdoors: Mar 31 to Apr 14
Transplant outside: Apr 7 to Apr 28
Plant for fall: Oct 19 to Nov 23
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Lake Stevens, WA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 30 – Jan 13 | Feb 24 – Mar 10 | — | — |
| Peppers | Jan 13 – Jan 27 | Apr 7 – Apr 21 | — | — |
| Eggplant | Jan 13 – Jan 27 | Apr 7 – Apr 21 | — | — |
| Tomatoes | Jan 27 – Feb 10 | Mar 31 – Apr 14 | — | — |
| Lettuce | Jan 27 – Feb 10 | Mar 3 – Mar 17 | Feb 24 – Mar 31 | Sep 7 – Oct 5 |
| Kale | Jan 27 – Feb 10 | Feb 24 – Mar 10 | Feb 24 – Mar 10 | Aug 24 – Sep 14 |
| Broccoli | Jan 27 – Feb 10 | Mar 10 – Mar 24 | — | Jul 27 – Aug 17 |
| Cabbage | Jan 27 – Feb 10 | Mar 3 – Mar 17 | — | Jul 27 – Aug 17 |
| Cauliflower | Jan 27 – Feb 10 | Mar 10 – Mar 24 | — | Jul 27 – Aug 17 |
| Okra | Feb 10 – Feb 24 | Apr 14 – Apr 28 | Apr 14 – Apr 28 | — |
| Basil | Feb 10 – Feb 24 | Mar 31 – Apr 14 | — | — |
| Peas | — | — | Feb 10 – Mar 3 | Aug 10 – Aug 31 |
| Spinach | — | — | Feb 10 – Mar 3 | Sep 7 – Sep 28 |
| Radishes | — | — | Feb 17 – Mar 31 | Sep 21 – Oct 12 |
| Cucumbers | Feb 24 – Mar 3 | Apr 7 – Apr 14 | Mar 31 – Apr 14 | Aug 17 – Aug 31 |
| Zucchini & Summer Squash | Feb 24 – Mar 3 | — | Mar 31 – Apr 14 | Aug 24 – Sep 7 |
| Winter Squash & Pumpkins | Feb 24 – Mar 3 | — | Mar 31 – Apr 14 | — |
| Melons & Watermelon | Feb 24 – Mar 3 | Apr 7 – Apr 21 | — | — |
| Carrots | — | — | Mar 3 – Mar 31 | Aug 10 – Aug 24 |
| Beets | — | — | Mar 3 – Mar 31 | Aug 24 – Sep 7 |
| Potatoes | — | — | Mar 3 – Mar 24 | — |
| Swiss Chard | — | — | Mar 10 – Apr 7 | Aug 24 – Sep 7 |
| Cilantro | — | — | Mar 10 – Mar 31 | Sep 7 – Sep 28 |
| Green Beans | — | — | Mar 31 – Apr 21 | Aug 17 – Aug 31 |
| Sweet Corn | — | — | Mar 31 – Apr 14 | — |
| Sweet Potatoes | — | Apr 7 – Apr 28 | — | — |
| Garlic | — | — | — | Oct 19 – Nov 23 |
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 Everett, WA weather station, 11 km away (elevation 59 ft (18 m)).
Frost dates near Lake Stevens
- Marysville Mar 24 · Nov 2
- Granite Falls Apr 22 · Oct 19
- Snohomish Apr 17 · Oct 23
- Everett Mar 9 · Nov 17
- North Lakewood Apr 22 · Oct 19
- Arlington Apr 22 · Oct 19
- Monroe Apr 17 · Oct 23
- Mill Creek Mar 9 · Nov 17
- Mukilteo Mar 9 · Nov 17
- Silvana Apr 22 · Oct 19
Frequently asked questions
When is the last frost in Lake Stevens, WA?
The median last spring frost in Lake Stevens, WA is March 24. There is still about a 10% chance of frost after April 11, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Lake Stevens, WA?
The median first fall frost is November 2, with about a 10% chance of frost before October 16.
How long is the growing season in Lake Stevens, WA?
About 223 days between the median last spring frost and first fall frost.
What planting zone is Lake Stevens, WA?
Lake Stevens, WA is in USDA hardiness zone 8b.