Groveland, CA frost dates
Last spring frostApr 22median date
First fall frostNov 2median date
Growing season194 daysfrost-free
Hardiness zone6aZone 6a
How Groveland compares
- In 8 years out of 10, the last spring frost in Groveland falls between April 5 and May 14, a 39-day window. The first fall frost falls between October 13 and November 20.
- The median last frost is 22 days later than the California median of Mar 31.
- Its 194-day growing season is longer than 30% of the 636 California places with a regular frost season (state median 235 days).
- The last frost is 7 days earlier than the zone 6a median of Apr 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6a chart.
- The weather station records an average of 91 nights a year at or below 32°F.
- Compared with Merced, CA, 68 km away, the last frost here is 55 days later than there and the growing season is 78 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 5 |
| 50% (median) | April 22 |
| 10% (safe for tender plants) | May 14 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 13 |
| 50% (median) | November 2 |
| 90% (late) | November 20 |
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 Groveland, CA
Groveland, CA frost dates — last frost Apr 22, first frost Nov 2, zone 6a. whenisthelastfrost.com
Crop
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Start indoors: Jan 28 to Feb 11Transplant outside: Mar 25 to Apr 8
Start indoors: Feb 11 to Feb 25Transplant outside: May 6 to May 20
Start indoors: Feb 11 to Feb 25Transplant outside: May 6 to May 20
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 29 to May 13
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 1 to Apr 15Sow outdoors: Mar 25 to Apr 29Plant for fall: Sep 7 to Oct 5
Start indoors: Feb 25 to Mar 11Transplant outside: Mar 25 to Apr 8Sow outdoors: Mar 25 to Apr 8Plant for fall: Aug 24 to Sep 14
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 8 to Apr 22Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 1 to Apr 15Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 8 to Apr 22Plant for fall: Jul 27 to Aug 17
Start indoors: Mar 11 to Mar 25Transplant outside: May 13 to May 27Sow outdoors: May 13 to May 27
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 29 to May 13
Sow outdoors: Mar 11 to Apr 1Plant for fall: Aug 10 to Aug 31
Sow outdoors: Mar 11 to Apr 1Plant for fall: Sep 7 to Sep 28
Sow outdoors: Mar 18 to Apr 29Plant for fall: Sep 21 to Oct 12
Start indoors: Mar 25 to Apr 1Transplant outside: May 6 to May 13Sow outdoors: Apr 29 to May 13Plant for fall: Aug 17 to Aug 31
Start indoors: Mar 25 to Apr 1Sow outdoors: Apr 29 to May 13Plant for fall: Aug 24 to Sep 7
Start indoors: Mar 25 to Apr 1Sow outdoors: Apr 29 to May 13
Start indoors: Mar 25 to Apr 1Transplant outside: May 6 to May 20
Sow outdoors: Apr 1 to Apr 29Plant for fall: Aug 10 to Aug 24
Sow outdoors: Apr 1 to Apr 29Plant for fall: Aug 24 to Sep 7
Sow outdoors: Apr 1 to Apr 22
Sow outdoors: Apr 8 to May 6Plant for fall: Aug 24 to Sep 7
Sow outdoors: Apr 8 to Apr 29Plant for fall: Sep 7 to Sep 28
Sow outdoors: Apr 29 to May 20Plant for fall: Aug 17 to Aug 31
Sow outdoors: Apr 29 to May 13
Transplant outside: May 6 to May 27
Plant for fall: Oct 19 to Nov 23
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Groveland, CA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 28 – Feb 11 | Mar 25 – Apr 8 | — | — |
| Peppers | Feb 11 – Feb 25 | May 6 – May 20 | — | — |
| Eggplant | Feb 11 – Feb 25 | May 6 – May 20 | — | — |
| Tomatoes | Feb 25 – Mar 11 | Apr 29 – May 13 | — | — |
| Lettuce | Feb 25 – Mar 11 | Apr 1 – Apr 15 | Mar 25 – Apr 29 | Sep 7 – Oct 5 |
| Kale | Feb 25 – Mar 11 | Mar 25 – Apr 8 | Mar 25 – Apr 8 | Aug 24 – Sep 14 |
| Broccoli | Feb 25 – Mar 11 | Apr 8 – Apr 22 | — | Jul 27 – Aug 17 |
| Cabbage | Feb 25 – Mar 11 | Apr 1 – Apr 15 | — | Jul 27 – Aug 17 |
| Cauliflower | Feb 25 – Mar 11 | Apr 8 – Apr 22 | — | Jul 27 – Aug 17 |
| Okra | Mar 11 – Mar 25 | May 13 – May 27 | May 13 – May 27 | — |
| Basil | Mar 11 – Mar 25 | Apr 29 – May 13 | — | — |
| Peas | — | — | Mar 11 – Apr 1 | Aug 10 – Aug 31 |
| Spinach | — | — | Mar 11 – Apr 1 | Sep 7 – Sep 28 |
| Radishes | — | — | Mar 18 – Apr 29 | Sep 21 – Oct 12 |
| Cucumbers | Mar 25 – Apr 1 | May 6 – May 13 | Apr 29 – May 13 | Aug 17 – Aug 31 |
| Zucchini & Summer Squash | Mar 25 – Apr 1 | — | Apr 29 – May 13 | Aug 24 – Sep 7 |
| Winter Squash & Pumpkins | Mar 25 – Apr 1 | — | Apr 29 – May 13 | — |
| Melons & Watermelon | Mar 25 – Apr 1 | May 6 – May 20 | — | — |
| Carrots | — | — | Apr 1 – Apr 29 | Aug 10 – Aug 24 |
| Beets | — | — | Apr 1 – Apr 29 | Aug 24 – Sep 7 |
| Potatoes | — | — | Apr 1 – Apr 22 | — |
| Swiss Chard | — | — | Apr 8 – May 6 | Aug 24 – Sep 7 |
| Cilantro | — | — | Apr 8 – Apr 29 | Sep 7 – Sep 28 |
| Green Beans | — | — | Apr 29 – May 20 | Aug 17 – Aug 31 |
| Sweet Corn | — | — | Apr 29 – May 13 | — |
| Sweet Potatoes | — | May 6 – May 27 | — | — |
| Garlic | — | — | — | Oct 19 – Nov 23 |
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 Groveland, CA weather station, 11 km away (elevation 2,799 ft (853 m)).
Frost dates near Groveland
- Coulterville Apr 22 · Nov 2
- Big Oak Flat Apr 22 · Nov 2
- Moccasin Apr 22 · Nov 2
- Tuolumne Apr 9 · Nov 9
- Soulsbyville Apr 9 · Nov 9
- Standard Apr 9 · Nov 9
- Twain Harte Apr 9 · Nov 9
- Chinese Camp Apr 9 · Nov 9
- Mi Wuk Village Apr 9 · Nov 9
- Sonora Apr 9 · Nov 9
Frequently asked questions
When is the last frost in Groveland, CA?
The median last spring frost in Groveland, CA is April 22. There is still about a 10% chance of frost after May 14, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Groveland, CA?
The median first fall frost is November 2, with about a 10% chance of frost before October 13.
How long is the growing season in Groveland, CA?
About 194 days between the median last spring frost and first fall frost.
What planting zone is Groveland, CA?
Groveland, CA is in USDA hardiness zone 6a.