Macdoel, CA frost dates
Last spring frostJun 5median date
First fall frostSep 20median date
Growing season107 daysfrost-free
Hardiness zone6bZone 6b
How Macdoel compares
- In 8 years out of 10, the last spring frost in Macdoel falls between May 16 and June 22, a 37-day window. The first fall frost falls between September 6 and October 4.
- The median last frost is 66 days later than the California median of Mar 31.
- Its 107-day growing season is longer than 4% of the 636 California places with a regular frost season (state median 235 days).
- The last frost is 44 days later than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 189 nights a year at or below 32°F.
- Compared with Medford, OR, 90 km away, the last frost here is 58 days later than there and the growing season is 97 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 16 |
| 50% (median) | June 5 |
| 10% (safe for tender plants) | June 22 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 6 |
| 50% (median) | September 20 |
| 90% (late) | October 4 |
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 Macdoel, CA
Macdoel, CA frost dates — last frost Jun 5, first frost Sep 20, zone 6b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 13 to Mar 27Transplant outside: May 8 to May 22
Start indoors: Mar 27 to Apr 10Transplant outside: Jun 19 to Jul 3
Start indoors: Mar 27 to Apr 10Transplant outside: Jun 19 to Jul 3
Start indoors: Apr 10 to Apr 24Transplant outside: Jun 12 to Jun 26
Start indoors: Apr 10 to Apr 24Transplant outside: May 15 to May 29Sow outdoors: May 8 to Jun 12Plant for fall: Jul 26 to Aug 23
Start indoors: Apr 10 to Apr 24Transplant outside: May 8 to May 22Sow outdoors: May 8 to May 22Plant for fall: Jul 12 to Aug 2
Start indoors: Apr 10 to Apr 24Transplant outside: May 22 to Jun 5
Start indoors: Apr 10 to Apr 24Transplant outside: May 15 to May 29
Start indoors: Apr 10 to Apr 24Transplant outside: May 22 to Jun 5
Start indoors: Apr 24 to May 8Transplant outside: Jun 26 to Jul 10Sow outdoors: Jun 26 to Jul 10
Start indoors: Apr 24 to May 8Transplant outside: Jun 12 to Jun 26
Sow outdoors: Apr 24 to May 15Plant for fall: Jun 28 to Jul 19
Sow outdoors: Apr 24 to May 15Plant for fall: Jul 26 to Aug 16
Sow outdoors: May 1 to Jun 12Plant for fall: Aug 9 to Aug 30
Start indoors: May 8 to May 15Transplant outside: Jun 19 to Jun 26Sow outdoors: Jun 12 to Jun 26
Start indoors: May 8 to May 15Sow outdoors: Jun 12 to Jun 26Plant for fall: Jul 12 to Jul 26
Start indoors: May 8 to May 15Sow outdoors: Jun 12 to Jun 26
Start indoors: May 8 to May 15Transplant outside: Jun 19 to Jul 3
Sow outdoors: May 15 to Jun 12Plant for fall: Jun 28 to Jul 12
Sow outdoors: May 15 to Jun 12Plant for fall: Jul 12 to Jul 26
Sow outdoors: May 15 to Jun 5
Sow outdoors: May 22 to Jun 19Plant for fall: Jul 12 to Jul 26
Sow outdoors: May 22 to Jun 12Plant for fall: Jul 26 to Aug 16
Sow outdoors: Jun 12 to Jul 3
Sow outdoors: Jun 12 to Jun 26
Transplant outside: Jun 19 to Jul 10
Plant for fall: Sep 6 to Oct 11
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Macdoel, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 13 – Mar 27 | May 8 – May 22 | — | — |
| Peppers | Mar 27 – Apr 10 | Jun 19 – Jul 3 | — | — |
| Eggplant | Mar 27 – Apr 10 | Jun 19 – Jul 3 | — | — |
| Tomatoes | Apr 10 – Apr 24 | Jun 12 – Jun 26 | — | — |
| Lettuce | Apr 10 – Apr 24 | May 15 – May 29 | May 8 – Jun 12 | Jul 26 – Aug 23 |
| Kale | Apr 10 – Apr 24 | May 8 – May 22 | May 8 – May 22 | Jul 12 – Aug 2 |
| Broccoli | Apr 10 – Apr 24 | May 22 – Jun 5 | — | — |
| Cabbage | Apr 10 – Apr 24 | May 15 – May 29 | — | — |
| Cauliflower | Apr 10 – Apr 24 | May 22 – Jun 5 | — | — |
| Okra | Apr 24 – May 8 | Jun 26 – Jul 10 | Jun 26 – Jul 10 | — |
| Basil | Apr 24 – May 8 | Jun 12 – Jun 26 | — | — |
| Peas | — | — | Apr 24 – May 15 | Jun 28 – Jul 19 |
| Spinach | — | — | Apr 24 – May 15 | Jul 26 – Aug 16 |
| Radishes | — | — | May 1 – Jun 12 | Aug 9 – Aug 30 |
| Cucumbers | May 8 – May 15 | Jun 19 – Jun 26 | Jun 12 – Jun 26 | — |
| Zucchini & Summer Squash | May 8 – May 15 | — | Jun 12 – Jun 26 | Jul 12 – Jul 26 |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 107 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | May 8 – May 15 | — | Jun 12 – Jun 26 | — |
| Melons & Watermelon | May 8 – May 15 | Jun 19 – Jul 3 | — | — |
| Carrots | — | — | May 15 – Jun 12 | Jun 28 – Jul 12 |
| Beets | — | — | May 15 – Jun 12 | Jul 12 – Jul 26 |
| Potatoes | — | — | May 15 – Jun 5 | — |
| Swiss Chard | — | — | May 22 – Jun 19 | Jul 12 – Jul 26 |
| Cilantro | — | — | May 22 – Jun 12 | Jul 26 – Aug 16 |
| Green Beans | — | — | Jun 12 – Jul 3 | — |
| Sweet Corn | — | — | Jun 12 – Jun 26 | — |
| Sweet Potatoes Warning: Your frost-free season is about 107 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 19 – Jul 10 | — | — |
| Garlic | — | — | — | Sep 6 – Oct 11 |
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 Keno, OR weather station, 24 km away (elevation 4,127 ft (1,258 m)).
Frost dates near Macdoel
- Dorris Jun 5 · Sep 20
- Tulelake Jun 6 · Sep 14
- Montague May 12 · Oct 8
- Hornbrook May 12 · Oct 8
- Grenada Apr 30 · Oct 18
- Yreka Apr 30 · Oct 18
- Weed May 6 · Oct 12
- Gazelle Apr 30 · Oct 18
- Mount Shasta May 15 · Oct 6
- Mccloud May 28 · Sep 30
Frequently asked questions
When is the last frost in Macdoel, CA?
The median last spring frost in Macdoel, CA is June 5. There is still about a 10% chance of frost after June 22, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Macdoel, CA?
The median first fall frost is September 20, with about a 10% chance of frost before September 6.
How long is the growing season in Macdoel, CA?
About 107 days between the median last spring frost and first fall frost.
What planting zone is Macdoel, CA?
Macdoel, CA is in USDA hardiness zone 6b.