Bieber, CA frost dates
Last spring frostMay 28median date
First fall frostSep 29median date
Growing season124 daysfrost-free
Hardiness zone7aZone 7a
How Bieber compares
- In 8 years out of 10, the last spring frost in Bieber falls between May 7 and June 16, a 40-day window. The first fall frost falls between September 10 and October 15.
- The median last frost is 58 days later than the California median of Mar 31.
- Its 124-day growing season is longer than 6% of the 636 California places with a regular frost season (state median 235 days).
- The last frost is 42 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 152 nights a year at or below 32°F.
- Nearby Redding, CA, 118 km away, gets only light, occasional frost, a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 7 |
| 50% (median) | May 28 |
| 10% (safe for tender plants) | June 16 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 10 |
| 50% (median) | September 29 |
| 90% (late) | October 15 |
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 Bieber, CA
Bieber, CA frost dates — last frost May 28, first frost Sep 29, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Mar 5 to Mar 19Transplant outside: Apr 30 to May 14
Start indoors: Mar 19 to Apr 2Transplant outside: Jun 11 to Jun 25
Start indoors: Mar 19 to Apr 2Transplant outside: Jun 11 to Jun 25
Start indoors: Apr 2 to Apr 16Transplant outside: Jun 4 to Jun 18
Start indoors: Apr 2 to Apr 16Transplant outside: May 7 to May 21Sow outdoors: Apr 30 to Jun 4Plant for fall: Aug 4 to Sep 1
Start indoors: Apr 2 to Apr 16Transplant outside: Apr 30 to May 14Sow outdoors: Apr 30 to May 14Plant for fall: Jul 21 to Aug 11
Start indoors: Apr 2 to Apr 16Transplant outside: May 14 to May 28Plant for fall: Jun 23 to Jul 14
Start indoors: Apr 2 to Apr 16Transplant outside: May 7 to May 21Plant for fall: Jun 23 to Jul 14
Start indoors: Apr 2 to Apr 16Transplant outside: May 14 to May 28Plant for fall: Jun 23 to Jul 14
Start indoors: Apr 16 to Apr 30Transplant outside: Jun 18 to Jul 2Sow outdoors: Jun 18 to Jul 2
Start indoors: Apr 16 to Apr 30Transplant outside: Jun 4 to Jun 18
Sow outdoors: Apr 16 to May 7Plant for fall: Jul 7 to Jul 28
Sow outdoors: Apr 16 to May 7Plant for fall: Aug 4 to Aug 25
Sow outdoors: Apr 23 to Jun 4Plant for fall: Aug 18 to Sep 8
Start indoors: Apr 30 to May 7Transplant outside: Jun 11 to Jun 18Sow outdoors: Jun 4 to Jun 18Plant for fall: Jul 14 to Jul 28
Start indoors: Apr 30 to May 7Sow outdoors: Jun 4 to Jun 18Plant for fall: Jul 21 to Aug 4
Start indoors: Apr 30 to May 7Sow outdoors: Jun 4 to Jun 18
Start indoors: Apr 30 to May 7Transplant outside: Jun 11 to Jun 25
Sow outdoors: May 7 to Jun 4Plant for fall: Jul 7 to Jul 21
Sow outdoors: May 7 to Jun 4Plant for fall: Jul 21 to Aug 4
Sow outdoors: May 7 to May 28
Sow outdoors: May 14 to Jun 11Plant for fall: Jul 21 to Aug 4
Sow outdoors: May 14 to Jun 4Plant for fall: Aug 4 to Aug 25
Sow outdoors: Jun 4 to Jun 25Plant for fall: Jul 14 to Jul 28
Sow outdoors: Jun 4 to Jun 18
Transplant outside: Jun 11 to Jul 2
Plant for fall: Sep 15 to Oct 20
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Bieber, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 5 – Mar 19 | Apr 30 – May 14 | — | — |
| Peppers | Mar 19 – Apr 2 | Jun 11 – Jun 25 | — | — |
| Eggplant | Mar 19 – Apr 2 | Jun 11 – Jun 25 | — | — |
| Tomatoes | Apr 2 – Apr 16 | Jun 4 – Jun 18 | — | — |
| Lettuce | Apr 2 – Apr 16 | May 7 – May 21 | Apr 30 – Jun 4 | Aug 4 – Sep 1 |
| Kale | Apr 2 – Apr 16 | Apr 30 – May 14 | Apr 30 – May 14 | Jul 21 – Aug 11 |
| Broccoli | Apr 2 – Apr 16 | May 14 – May 28 | — | Jun 23 – Jul 14 |
| Cabbage | Apr 2 – Apr 16 | May 7 – May 21 | — | Jun 23 – Jul 14 |
| Cauliflower | Apr 2 – Apr 16 | May 14 – May 28 | — | Jun 23 – Jul 14 |
| Okra | Apr 16 – Apr 30 | Jun 18 – Jul 2 | Jun 18 – Jul 2 | — |
| Basil | Apr 16 – Apr 30 | Jun 4 – Jun 18 | — | — |
| Peas | — | — | Apr 16 – May 7 | Jul 7 – Jul 28 |
| Spinach | — | — | Apr 16 – May 7 | Aug 4 – Aug 25 |
| Radishes | — | — | Apr 23 – Jun 4 | Aug 18 – Sep 8 |
| Cucumbers | Apr 30 – May 7 | Jun 11 – Jun 18 | Jun 4 – Jun 18 | Jul 14 – Jul 28 |
| Zucchini & Summer Squash | Apr 30 – May 7 | — | Jun 4 – Jun 18 | Jul 21 – Aug 4 |
| Winter Squash & Pumpkins | Apr 30 – May 7 | — | Jun 4 – Jun 18 | — |
| Melons & Watermelon | Apr 30 – May 7 | Jun 11 – Jun 25 | — | — |
| Carrots | — | — | May 7 – Jun 4 | Jul 7 – Jul 21 |
| Beets | — | — | May 7 – Jun 4 | Jul 21 – Aug 4 |
| Potatoes | — | — | May 7 – May 28 | — |
| Swiss Chard | — | — | May 14 – Jun 11 | Jul 21 – Aug 4 |
| Cilantro | — | — | May 14 – Jun 4 | Aug 4 – Aug 25 |
| Green Beans | — | — | Jun 4 – Jun 25 | Jul 14 – Jul 28 |
| Sweet Corn | — | — | Jun 4 – Jun 18 | — |
| Sweet Potatoes | — | Jun 11 – Jul 2 | — | — |
| Garlic | — | — | — | Sep 15 – Oct 20 |
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 Adin Rs, CA weather station, 17 km away (elevation 4,196 ft (1,279 m)).
Frost dates near Bieber
- Nubieber May 28 · Sep 29
- Lookout May 28 · Sep 29
- Adin May 28 · Sep 29
- Mcarthur May 29 · Sep 19
- Fall River Mills May 29 · Sep 19
- Canby Jun 1 · Sep 16
- Cassel May 29 · Sep 19
- Termo May 28 · Sep 29
- Hat Creek May 29 · Sep 19
- Madeline Jun 14 · Sep 18
Frequently asked questions
When is the last frost in Bieber, CA?
The median last spring frost in Bieber, CA is May 28. There is still about a 10% chance of frost after June 16, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Bieber, CA?
The median first fall frost is September 29, with about a 10% chance of frost before September 10.
How long is the growing season in Bieber, CA?
About 124 days between the median last spring frost and first fall frost.
What planting zone is Bieber, CA?
Bieber, CA is in USDA hardiness zone 7a.