Roosevelt, WA frost dates
Last spring frostMay 16median date
First fall frostOct 9median date
Growing season146 daysfrost-free
Hardiness zone7aZone 7a
How Roosevelt compares
- In 8 years out of 10, the last spring frost in Roosevelt falls between April 28 and June 10, a 43-day window. The first fall frost falls between September 26 and October 26.
- The median last frost is 25 days later than the Washington median of Apr 21.
- Its 146-day growing season is longer than 14% of the 491 Washington places with a regular frost season (state median 182 days).
- The last frost is 30 days later than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 144 nights a year at or below 32°F.
- Compared with Yakima, WA, 85 km away, the last frost here is 38 days later than there and the growing season is 52 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 28 |
| 50% (median) | May 16 |
| 10% (safe for tender plants) | June 10 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 26 |
| 50% (median) | October 9 |
| 90% (late) | October 26 |
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 Roosevelt, WA
Roosevelt, WA frost dates — last frost May 16, first frost Oct 9, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Feb 21 to Mar 7Transplant outside: Apr 18 to May 2
Start indoors: Mar 7 to Mar 21Transplant outside: May 30 to Jun 13
Start indoors: Mar 7 to Mar 21Transplant outside: May 30 to Jun 13
Start indoors: Mar 21 to Apr 4Transplant outside: May 23 to Jun 6
Start indoors: Mar 21 to Apr 4Transplant outside: Apr 25 to May 9Sow outdoors: Apr 18 to May 23Plant for fall: Aug 14 to Sep 11
Start indoors: Mar 21 to Apr 4Transplant outside: Apr 18 to May 2Sow outdoors: Apr 18 to May 2Plant for fall: Jul 31 to Aug 21
Start indoors: Mar 21 to Apr 4Transplant outside: May 2 to May 16Plant for fall: Jul 3 to Jul 24
Start indoors: Mar 21 to Apr 4Transplant outside: Apr 25 to May 9Plant for fall: Jul 3 to Jul 24
Start indoors: Mar 21 to Apr 4Transplant outside: May 2 to May 16Plant for fall: Jul 3 to Jul 24
Start indoors: Apr 4 to Apr 18Transplant outside: Jun 6 to Jun 20Sow outdoors: Jun 6 to Jun 20
Start indoors: Apr 4 to Apr 18Transplant outside: May 23 to Jun 6
Sow outdoors: Apr 4 to Apr 25Plant for fall: Jul 17 to Aug 7
Sow outdoors: Apr 4 to Apr 25Plant for fall: Aug 14 to Sep 4
Sow outdoors: Apr 11 to May 23Plant for fall: Aug 28 to Sep 18
Start indoors: Apr 18 to Apr 25Transplant outside: May 30 to Jun 6Sow outdoors: May 23 to Jun 6Plant for fall: Jul 24 to Aug 7
Start indoors: Apr 18 to Apr 25Sow outdoors: May 23 to Jun 6Plant for fall: Jul 31 to Aug 14
Start indoors: Apr 18 to Apr 25Sow outdoors: May 23 to Jun 6
Start indoors: Apr 18 to Apr 25Transplant outside: May 30 to Jun 13
Sow outdoors: Apr 25 to May 23Plant for fall: Jul 17 to Jul 31
Sow outdoors: Apr 25 to May 23Plant for fall: Jul 31 to Aug 14
Sow outdoors: Apr 25 to May 16
Sow outdoors: May 2 to May 30Plant for fall: Jul 31 to Aug 14
Sow outdoors: May 2 to May 23Plant for fall: Aug 14 to Sep 4
Sow outdoors: May 23 to Jun 13Plant for fall: Jul 24 to Aug 7
Sow outdoors: May 23 to Jun 6
Transplant outside: May 30 to Jun 20
Plant for fall: Sep 25 to Oct 30
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Roosevelt, WA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 21 – Mar 7 | Apr 18 – May 2 | — | — |
| Peppers | Mar 7 – Mar 21 | May 30 – Jun 13 | — | — |
| Eggplant | Mar 7 – Mar 21 | May 30 – Jun 13 | — | — |
| Tomatoes | Mar 21 – Apr 4 | May 23 – Jun 6 | — | — |
| Lettuce | Mar 21 – Apr 4 | Apr 25 – May 9 | Apr 18 – May 23 | Aug 14 – Sep 11 |
| Kale | Mar 21 – Apr 4 | Apr 18 – May 2 | Apr 18 – May 2 | Jul 31 – Aug 21 |
| Broccoli | Mar 21 – Apr 4 | May 2 – May 16 | — | Jul 3 – Jul 24 |
| Cabbage | Mar 21 – Apr 4 | Apr 25 – May 9 | — | Jul 3 – Jul 24 |
| Cauliflower | Mar 21 – Apr 4 | May 2 – May 16 | — | Jul 3 – Jul 24 |
| Okra | Apr 4 – Apr 18 | Jun 6 – Jun 20 | Jun 6 – Jun 20 | — |
| Basil | Apr 4 – Apr 18 | May 23 – Jun 6 | — | — |
| Peas | — | — | Apr 4 – Apr 25 | Jul 17 – Aug 7 |
| Spinach | — | — | Apr 4 – Apr 25 | Aug 14 – Sep 4 |
| Radishes | — | — | Apr 11 – May 23 | Aug 28 – Sep 18 |
| Cucumbers | Apr 18 – Apr 25 | May 30 – Jun 6 | May 23 – Jun 6 | Jul 24 – Aug 7 |
| Zucchini & Summer Squash | Apr 18 – Apr 25 | — | May 23 – Jun 6 | Jul 31 – Aug 14 |
| Winter Squash & Pumpkins | Apr 18 – Apr 25 | — | May 23 – Jun 6 | — |
| Melons & Watermelon | Apr 18 – Apr 25 | May 30 – Jun 13 | — | — |
| Carrots | — | — | Apr 25 – May 23 | Jul 17 – Jul 31 |
| Beets | — | — | Apr 25 – May 23 | Jul 31 – Aug 14 |
| Potatoes | — | — | Apr 25 – May 16 | — |
| Swiss Chard | — | — | May 2 – May 30 | Jul 31 – Aug 14 |
| Cilantro | — | — | May 2 – May 23 | Aug 14 – Sep 4 |
| Green Beans | — | — | May 23 – Jun 13 | Jul 24 – Aug 7 |
| Sweet Corn | — | — | May 23 – Jun 6 | — |
| Sweet Potatoes | — | May 30 – Jun 20 | — | — |
| Garlic | — | — | — | Sep 25 – Oct 30 |
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 Bickleton, WA weather station, 17 km away (elevation 3,015 ft (919 m)).
Frost dates near Roosevelt
- Bickleton May 16 · Oct 9
- Goldendale May 19 · Sep 25
- Mabton May 1 · Oct 6
- Centerville May 19 · Sep 25
- Paterson Apr 14 · Oct 21
- Wishram Apr 11 · Oct 26
- Grandview May 1 · Oct 6
- Granger Apr 30 · Oct 8
- Toppenish Apr 21 · Oct 15
- Sunnyside May 1 · Oct 6
Frequently asked questions
When is the last frost in Roosevelt, WA?
The median last spring frost in Roosevelt, WA is May 16. There is still about a 10% chance of frost after June 10, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Roosevelt, WA?
The median first fall frost is October 9, with about a 10% chance of frost before September 26.
How long is the growing season in Roosevelt, WA?
About 146 days between the median last spring frost and first fall frost.
What planting zone is Roosevelt, WA?
Roosevelt, WA is in USDA hardiness zone 7a.