North Bend, WA frost dates
Last spring frostApr 23median date
First fall frostNov 1median date
Growing season192 daysfrost-free
Hardiness zone8aZone 8a
How North Bend compares
- In 8 years out of 10, the last spring frost in North Bend falls between April 3 and May 13, a 40-day window. The first fall frost falls between October 17 and November 22.
- The median last frost is 2 days later than the Washington median of Apr 21.
- Its 192-day growing season is longer than 57% of the 491 Washington places with a regular frost season (state median 182 days).
- The last frost is 25 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 86 nights a year at or below 32°F.
- Compared with Sammamish, WA, 26 km away, the last frost here is 24 days later than there and the growing season is 30 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 3 |
| 50% (median) | April 23 |
| 10% (safe for tender plants) | May 13 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 17 |
| 50% (median) | November 1 |
| 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 North Bend, WA
North Bend, WA frost dates — last frost Apr 23, first frost Nov 1, zone 8a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 26 to Apr 9
Start indoors: Feb 12 to Feb 26Transplant outside: May 7 to May 21
Start indoors: Feb 12 to Feb 26Transplant outside: May 7 to May 21
Start indoors: Feb 26 to Mar 12Transplant outside: Apr 30 to May 14
Start indoors: Feb 26 to Mar 12Transplant outside: Apr 2 to Apr 16Sow outdoors: Mar 26 to Apr 30Plant for fall: Sep 6 to Oct 4
Start indoors: Feb 26 to Mar 12Transplant outside: Mar 26 to Apr 9Sow outdoors: Mar 26 to Apr 9Plant for fall: Aug 23 to Sep 13
Start indoors: Feb 26 to Mar 12Transplant outside: Apr 9 to Apr 23Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 26 to Mar 12Transplant outside: Apr 2 to Apr 16Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 26 to Mar 12Transplant outside: Apr 9 to Apr 23Plant for fall: Jul 26 to Aug 16
Start indoors: Mar 12 to Mar 26Transplant outside: May 14 to May 28Sow outdoors: May 14 to May 28
Start indoors: Mar 12 to Mar 26Transplant outside: Apr 30 to May 14
Sow outdoors: Mar 12 to Apr 2Plant for fall: Aug 9 to Aug 30
Sow outdoors: Mar 12 to Apr 2Plant for fall: Sep 6 to Sep 27
Sow outdoors: Mar 19 to Apr 30Plant for fall: Sep 20 to Oct 11
Start indoors: Mar 26 to Apr 2Transplant outside: May 7 to May 14Sow outdoors: Apr 30 to May 14Plant for fall: Aug 16 to Aug 30
Start indoors: Mar 26 to Apr 2Sow outdoors: Apr 30 to May 14Plant for fall: Aug 23 to Sep 6
Start indoors: Mar 26 to Apr 2Sow outdoors: Apr 30 to May 14
Start indoors: Mar 26 to Apr 2Transplant outside: May 7 to May 21
Sow outdoors: Apr 2 to Apr 30Plant for fall: Aug 9 to Aug 23
Sow outdoors: Apr 2 to Apr 30Plant for fall: Aug 23 to Sep 6
Sow outdoors: Apr 2 to Apr 23
Sow outdoors: Apr 9 to May 7Plant for fall: Aug 23 to Sep 6
Sow outdoors: Apr 9 to Apr 30Plant for fall: Sep 6 to Sep 27
Sow outdoors: Apr 30 to May 21Plant for fall: Aug 16 to Aug 30
Sow outdoors: Apr 30 to May 14
Transplant outside: May 7 to May 28
Plant for fall: Oct 18 to Nov 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in North Bend, WA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 29 – Feb 12 | Mar 26 – Apr 9 | — | — |
| Peppers | Feb 12 – Feb 26 | May 7 – May 21 | — | — |
| Eggplant | Feb 12 – Feb 26 | May 7 – May 21 | — | — |
| Tomatoes | Feb 26 – Mar 12 | Apr 30 – May 14 | — | — |
| Lettuce | Feb 26 – Mar 12 | Apr 2 – Apr 16 | Mar 26 – Apr 30 | Sep 6 – Oct 4 |
| Kale | Feb 26 – Mar 12 | Mar 26 – Apr 9 | Mar 26 – Apr 9 | Aug 23 – Sep 13 |
| Broccoli | Feb 26 – Mar 12 | Apr 9 – Apr 23 | — | Jul 26 – Aug 16 |
| Cabbage | Feb 26 – Mar 12 | Apr 2 – Apr 16 | — | Jul 26 – Aug 16 |
| Cauliflower | Feb 26 – Mar 12 | Apr 9 – Apr 23 | — | Jul 26 – Aug 16 |
| Okra | Mar 12 – Mar 26 | May 14 – May 28 | May 14 – May 28 | — |
| Basil | Mar 12 – Mar 26 | Apr 30 – May 14 | — | — |
| Peas | — | — | Mar 12 – Apr 2 | Aug 9 – Aug 30 |
| Spinach | — | — | Mar 12 – Apr 2 | Sep 6 – Sep 27 |
| Radishes | — | — | Mar 19 – Apr 30 | Sep 20 – Oct 11 |
| Cucumbers | Mar 26 – Apr 2 | May 7 – May 14 | Apr 30 – May 14 | Aug 16 – Aug 30 |
| Zucchini & Summer Squash | Mar 26 – Apr 2 | — | Apr 30 – May 14 | Aug 23 – Sep 6 |
| Winter Squash & Pumpkins | Mar 26 – Apr 2 | — | Apr 30 – May 14 | — |
| Melons & Watermelon | Mar 26 – Apr 2 | May 7 – May 21 | — | — |
| Carrots | — | — | Apr 2 – Apr 30 | Aug 9 – Aug 23 |
| Beets | — | — | Apr 2 – Apr 30 | Aug 23 – Sep 6 |
| Potatoes | — | — | Apr 2 – Apr 23 | — |
| Swiss Chard | — | — | Apr 9 – May 7 | Aug 23 – Sep 6 |
| Cilantro | — | — | Apr 9 – Apr 30 | Sep 6 – Sep 27 |
| Green Beans | — | — | Apr 30 – May 21 | Aug 16 – Aug 30 |
| Sweet Corn | — | — | Apr 30 – May 14 | — |
| Sweet Potatoes | — | May 7 – May 28 | — | — |
| Garlic | — | — | — | Oct 18 – Nov 22 |
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 Cedar Lake, WA weather station, 7 km away (elevation 1,562 ft (476 m)).
Frost dates near North Bend
- Snoqualmie Mar 30 · Nov 7
- Fall City Mar 30 · Nov 7
- Preston Mar 30 · Nov 7
- Hobart Apr 20 · Oct 25
- Ravensdale Apr 3 · Nov 11
- Issaquah Mar 30 · Nov 7
- Carnation Mar 30 · Nov 7
- Maple Valley Apr 20 · Oct 25
- Snoqualmie Pass May 14 · Oct 17
- Sammamish Mar 30 · Nov 7
Frequently asked questions
When is the last frost in North Bend, WA?
The median last spring frost in North Bend, WA is April 23. There is still about a 10% chance of frost after May 13, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in North Bend, WA?
The median first fall frost is November 1, with about a 10% chance of frost before October 17.
How long is the growing season in North Bend, WA?
About 192 days between the median last spring frost and first fall frost.
What planting zone is North Bend, WA?
North Bend, WA is in USDA hardiness zone 8a.