Florence, OR frost dates
Last spring frostApr 10median date
First fall frostNov 15median date
Growing season219 daysfrost-free
Hardiness zone9aZone 9a
How Florence compares
- In 8 years out of 10, the last spring frost in Florence falls between March 6 and May 5, a 60-day window. The first fall frost falls between October 23 and December 13.
- The median last frost is 6 days earlier than the Oregon median of Apr 16.
- Its 219-day growing season is longer than 66% of the 345 Oregon places with a regular frost season (state median 193 days).
- The last frost is 38 days later than the zone 9a median of Mar 3. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 9a chart.
- The weather station records an average of 32 nights a year at or below 32°F.
- Compared with Eugene, OR, 81 km away, the last frost here is 1 day earlier than there and the growing season is 24 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 6 |
| 50% (median) | April 10 |
| 10% (safe for tender plants) | May 5 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 23 |
| 50% (median) | November 15 |
| 90% (late) | December 13 |
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 Florence, OR
Florence, OR frost dates — last frost Apr 10, first frost Nov 15, zone 9a. whenisthelastfrost.com
Crop
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Start indoors: Jan 16 to Jan 30Transplant outside: Mar 13 to Mar 27
Start indoors: Jan 30 to Feb 13Transplant outside: Apr 24 to May 8
Start indoors: Jan 30 to Feb 13Transplant outside: Apr 24 to May 8
Start indoors: Feb 13 to Feb 27Transplant outside: Apr 17 to May 1
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 20 to Apr 3Sow outdoors: Mar 13 to Apr 17Plant for fall: Sep 20 to Oct 18
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 13 to Mar 27Sow outdoors: Mar 13 to Mar 27Plant for fall: Sep 6 to Sep 27
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 27 to Apr 10Plant for fall: Aug 9 to Aug 30
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 20 to Apr 3Plant for fall: Aug 9 to Aug 30
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 27 to Apr 10Plant for fall: Aug 9 to Aug 30
Start indoors: Feb 27 to Mar 13Transplant outside: May 1 to May 15Sow outdoors: May 1 to May 15
Start indoors: Feb 27 to Mar 13Transplant outside: Apr 17 to May 1
Sow outdoors: Feb 27 to Mar 20Plant for fall: Aug 23 to Sep 13
Sow outdoors: Feb 27 to Mar 20Plant for fall: Sep 20 to Oct 11
Sow outdoors: Mar 6 to Apr 17Plant for fall: Oct 4 to Oct 25
Start indoors: Mar 13 to Mar 20Transplant outside: Apr 24 to May 1Sow outdoors: Apr 17 to May 1Plant for fall: Aug 30 to Sep 13
Start indoors: Mar 13 to Mar 20Sow outdoors: Apr 17 to May 1Plant for fall: Sep 6 to Sep 20
Start indoors: Mar 13 to Mar 20Sow outdoors: Apr 17 to May 1
Start indoors: Mar 13 to Mar 20Transplant outside: Apr 24 to May 8
Sow outdoors: Mar 20 to Apr 17Plant for fall: Aug 23 to Sep 6
Sow outdoors: Mar 20 to Apr 17Plant for fall: Sep 6 to Sep 20
Sow outdoors: Mar 20 to Apr 10
Sow outdoors: Mar 27 to Apr 24Plant for fall: Sep 6 to Sep 20
Sow outdoors: Mar 27 to Apr 17Plant for fall: Sep 20 to Oct 11
Sow outdoors: Apr 17 to May 8Plant for fall: Aug 30 to Sep 13
Sow outdoors: Apr 17 to May 1
Transplant outside: Apr 24 to May 15
Plant for fall: Nov 1 to Dec 6
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Florence, OR
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 16 – Jan 30 | Mar 13 – Mar 27 | — | — |
| Peppers | Jan 30 – Feb 13 | Apr 24 – May 8 | — | — |
| Eggplant | Jan 30 – Feb 13 | Apr 24 – May 8 | — | — |
| Tomatoes | Feb 13 – Feb 27 | Apr 17 – May 1 | — | — |
| Lettuce | Feb 13 – Feb 27 | Mar 20 – Apr 3 | Mar 13 – Apr 17 | Sep 20 – Oct 18 |
| Kale | Feb 13 – Feb 27 | Mar 13 – Mar 27 | Mar 13 – Mar 27 | Sep 6 – Sep 27 |
| Broccoli | Feb 13 – Feb 27 | Mar 27 – Apr 10 | — | Aug 9 – Aug 30 |
| Cabbage | Feb 13 – Feb 27 | Mar 20 – Apr 3 | — | Aug 9 – Aug 30 |
| Cauliflower | Feb 13 – Feb 27 | Mar 27 – Apr 10 | — | Aug 9 – Aug 30 |
| Okra | Feb 27 – Mar 13 | May 1 – May 15 | May 1 – May 15 | — |
| Basil | Feb 27 – Mar 13 | Apr 17 – May 1 | — | — |
| Peas | — | — | Feb 27 – Mar 20 | Aug 23 – Sep 13 |
| Spinach | — | — | Feb 27 – Mar 20 | Sep 20 – Oct 11 |
| Radishes | — | — | Mar 6 – Apr 17 | Oct 4 – Oct 25 |
| Cucumbers | Mar 13 – Mar 20 | Apr 24 – May 1 | Apr 17 – May 1 | Aug 30 – Sep 13 |
| Zucchini & Summer Squash | Mar 13 – Mar 20 | — | Apr 17 – May 1 | Sep 6 – Sep 20 |
| Winter Squash & Pumpkins | Mar 13 – Mar 20 | — | Apr 17 – May 1 | — |
| Melons & Watermelon | Mar 13 – Mar 20 | Apr 24 – May 8 | — | — |
| Carrots | — | — | Mar 20 – Apr 17 | Aug 23 – Sep 6 |
| Beets | — | — | Mar 20 – Apr 17 | Sep 6 – Sep 20 |
| Potatoes | — | — | Mar 20 – Apr 10 | — |
| Swiss Chard | — | — | Mar 27 – Apr 24 | Sep 6 – Sep 20 |
| Cilantro | — | — | Mar 27 – Apr 17 | Sep 20 – Oct 11 |
| Green Beans | — | — | Apr 17 – May 8 | Aug 30 – Sep 13 |
| Sweet Corn | — | — | Apr 17 – May 1 | — |
| Sweet Potatoes | — | Apr 24 – May 15 | — | — |
| Garlic | — | — | — | Nov 1 – Dec 6 |
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 Florence #2, OR weather station, 2 km away (elevation 75 ft (23 m)).
Frost dates near Florence
- Westlake Mar 28 · Nov 22
- Mapleton Feb 15 · Dec 9
- Swisshome Feb 15 · Dec 9
- Gardiner Mar 25 · Nov 24
- Reedsport Mar 25 · Nov 24
- Yachats Feb 19 · Dec 11
- Deadwood Feb 15 · Dec 9
- Walton Apr 18 · Oct 25
- Scottsburg Apr 11 · Nov 6
- Lakeside Mar 25 · Nov 24
Frequently asked questions
When is the last frost in Florence, OR?
The median last spring frost in Florence, OR is April 10. There is still about a 10% chance of frost after May 5, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Florence, OR?
The median first fall frost is November 15, with about a 10% chance of frost before October 23.
How long is the growing season in Florence, OR?
About 219 days between the median last spring frost and first fall frost.
What planting zone is Florence, OR?
Florence, OR is in USDA hardiness zone 9a.