Saint Benedict, OR frost dates
Last spring frostApr 27median date
First fall frostNov 4median date
Growing season191 daysfrost-free
Hardiness zone8bZone 8b
How Saint Benedict compares
- In 8 years out of 10, the last spring frost in Saint Benedict falls between April 4 and May 17, a 43-day window. The first fall frost falls between October 18 and November 23.
- The median last frost is 11 days later than the Oregon median of Apr 16.
- Its 191-day growing season is longer than 47% of the 345 Oregon places with a regular frost season (state median 193 days).
- The last frost is 42 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 75 nights a year at or below 32°F.
- Compared with Salem, OR, 44 km away, the last frost here is 24 days later than there and the growing season is 21 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 4 |
| 50% (median) | April 27 |
| 10% (safe for tender plants) | May 17 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 18 |
| 50% (median) | November 4 |
| 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 Saint Benedict, OR
Saint Benedict, OR frost dates — last frost Apr 27, first frost Nov 4, zone 8b. whenisthelastfrost.com
Crop
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Start indoors: Feb 2 to Feb 16Transplant outside: Mar 30 to Apr 13
Start indoors: Feb 16 to Mar 2Transplant outside: May 11 to May 25
Start indoors: Feb 16 to Mar 2Transplant outside: May 11 to May 25
Start indoors: Mar 2 to Mar 16Transplant outside: May 4 to May 18
Start indoors: Mar 2 to Mar 16Transplant outside: Apr 6 to Apr 20Sow outdoors: Mar 30 to May 4Plant for fall: Sep 9 to Oct 7
Start indoors: Mar 2 to Mar 16Transplant outside: Mar 30 to Apr 13Sow outdoors: Mar 30 to Apr 13Plant for fall: Aug 26 to Sep 16
Start indoors: Mar 2 to Mar 16Transplant outside: Apr 13 to Apr 27Plant for fall: Jul 29 to Aug 19
Start indoors: Mar 2 to Mar 16Transplant outside: Apr 6 to Apr 20Plant for fall: Jul 29 to Aug 19
Start indoors: Mar 2 to Mar 16Transplant outside: Apr 13 to Apr 27Plant for fall: Jul 29 to Aug 19
Start indoors: Mar 16 to Mar 30Transplant outside: May 18 to Jun 1Sow outdoors: May 18 to Jun 1
Start indoors: Mar 16 to Mar 30Transplant outside: May 4 to May 18
Sow outdoors: Mar 16 to Apr 6Plant for fall: Aug 12 to Sep 2
Sow outdoors: Mar 16 to Apr 6Plant for fall: Sep 9 to Sep 30
Sow outdoors: Mar 23 to May 4Plant for fall: Sep 23 to Oct 14
Start indoors: Mar 30 to Apr 6Transplant outside: May 11 to May 18Sow outdoors: May 4 to May 18Plant for fall: Aug 19 to Sep 2
Start indoors: Mar 30 to Apr 6Sow outdoors: May 4 to May 18Plant for fall: Aug 26 to Sep 9
Start indoors: Mar 30 to Apr 6Sow outdoors: May 4 to May 18
Start indoors: Mar 30 to Apr 6Transplant outside: May 11 to May 25
Sow outdoors: Apr 6 to May 4Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 6 to May 4Plant for fall: Aug 26 to Sep 9
Sow outdoors: Apr 6 to Apr 27
Sow outdoors: Apr 13 to May 11Plant for fall: Aug 26 to Sep 9
Sow outdoors: Apr 13 to May 4Plant for fall: Sep 9 to Sep 30
Sow outdoors: May 4 to May 25Plant for fall: Aug 19 to Sep 2
Sow outdoors: May 4 to May 18
Transplant outside: May 11 to Jun 1
Plant for fall: Oct 21 to Nov 25
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Saint Benedict, OR
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 2 – Feb 16 | Mar 30 – Apr 13 | — | — |
| Peppers | Feb 16 – Mar 2 | May 11 – May 25 | — | — |
| Eggplant | Feb 16 – Mar 2 | May 11 – May 25 | — | — |
| Tomatoes | Mar 2 – Mar 16 | May 4 – May 18 | — | — |
| Lettuce | Mar 2 – Mar 16 | Apr 6 – Apr 20 | Mar 30 – May 4 | Sep 9 – Oct 7 |
| Kale | Mar 2 – Mar 16 | Mar 30 – Apr 13 | Mar 30 – Apr 13 | Aug 26 – Sep 16 |
| Broccoli | Mar 2 – Mar 16 | Apr 13 – Apr 27 | — | Jul 29 – Aug 19 |
| Cabbage | Mar 2 – Mar 16 | Apr 6 – Apr 20 | — | Jul 29 – Aug 19 |
| Cauliflower | Mar 2 – Mar 16 | Apr 13 – Apr 27 | — | Jul 29 – Aug 19 |
| Okra | Mar 16 – Mar 30 | May 18 – Jun 1 | May 18 – Jun 1 | — |
| Basil | Mar 16 – Mar 30 | May 4 – May 18 | — | — |
| Peas | — | — | Mar 16 – Apr 6 | Aug 12 – Sep 2 |
| Spinach | — | — | Mar 16 – Apr 6 | Sep 9 – Sep 30 |
| Radishes | — | — | Mar 23 – May 4 | Sep 23 – Oct 14 |
| Cucumbers | Mar 30 – Apr 6 | May 11 – May 18 | May 4 – May 18 | Aug 19 – Sep 2 |
| Zucchini & Summer Squash | Mar 30 – Apr 6 | — | May 4 – May 18 | Aug 26 – Sep 9 |
| Winter Squash & Pumpkins | Mar 30 – Apr 6 | — | May 4 – May 18 | — |
| Melons & Watermelon | Mar 30 – Apr 6 | May 11 – May 25 | — | — |
| Carrots | — | — | Apr 6 – May 4 | Aug 12 – Aug 26 |
| Beets | — | — | Apr 6 – May 4 | Aug 26 – Sep 9 |
| Potatoes | — | — | Apr 6 – Apr 27 | — |
| Swiss Chard | — | — | Apr 13 – May 11 | Aug 26 – Sep 9 |
| Cilantro | — | — | Apr 13 – May 4 | Sep 9 – Sep 30 |
| Green Beans | — | — | May 4 – May 25 | Aug 19 – Sep 2 |
| Sweet Corn | — | — | May 4 – May 18 | — |
| Sweet Potatoes | — | May 11 – Jun 1 | — | — |
| Garlic | — | — | — | Oct 21 – Nov 25 |
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 Scotts Mills 9 Se, OR weather station, 7 km away (elevation 2,316 ft (706 m)).
Frost dates near Saint Benedict
- Scotts Mills Apr 27 · Nov 4
- Molalla Mar 16 · Nov 19
- Colton Mar 16 · Nov 19
- Silverton Mar 28 · Nov 10
- Mehama Apr 30 · Oct 22
- Mill City Mar 9 · Dec 3
- Gates Mar 9 · Dec 3
- Mulino Mar 16 · Nov 19
- Mount Angel Mar 28 · Nov 10
- Lyons Apr 30 · Oct 22
Frequently asked questions
When is the last frost in Saint Benedict, OR?
The median last spring frost in Saint Benedict, OR is April 27. There is still about a 10% chance of frost after May 17, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Saint Benedict, OR?
The median first fall frost is November 4, with about a 10% chance of frost before October 18.
How long is the growing season in Saint Benedict, OR?
About 191 days between the median last spring frost and first fall frost.
What planting zone is Saint Benedict, OR?
Saint Benedict, OR is in USDA hardiness zone 8b.