When to plant in Agua Dulce, CA
Planting dates worked out from Agua Dulce's own frost records, not a generic zone chart.
Safe to plant out
Apr 22
1 year in 10 has a later frost
Average last frost
Apr 8
about a 50% chance of a later one
Average first fall frost
Nov 28
1 year in 10 by Nov 7
Frost-free days
231
median, 1991–2020
Station used: Acton California · 12.8 km away · station 792 m, town 770 m. How we match towns to stations
This season
Plan your garden.
Planting dates for common crops
| Crop | Start indoors | Plant out or sow | Harvest from |
|---|---|---|---|
| Tomato | Feb 25 – Mar 11 | Apr 22 – May 6 | Jun 16 |
| Sweet pepper | Feb 11 – Feb 25 | Apr 22 – May 6 | Jun 21 |
| Lettuce (leaf) | Feb 4 – Feb 11 | Mar 11 – Mar 25 | Apr 20 |
| Peas | — | Feb 25 – Mar 25 | Apr 21 |
| Bush beans | — | Apr 15 – May 6 | Jun 4 |
| Carrot | — | Mar 18 – Apr 29 | May 17 |
| Beet | — | Mar 11 – Apr 22 | Apr 30 |
| Potato | — | Mar 18 – Apr 8 | May 27 |
| Kale | Jan 28 – Feb 11 | Mar 11 – Mar 25 | Apr 23 |
| Broccoli | Jan 28 – Feb 11 | Mar 11 – Apr 1 | May 10 |
| Cucumber | Mar 25 – Apr 1 | Apr 22 – May 6 | Jun 11 |
| Summer squash and zucchini | Mar 25 – Apr 1 | Apr 22 – May 6 | Jun 6 |
| Winter squash | Mar 25 – Apr 1 | Apr 22 – May 6 | Jul 11 |
| Sweet corn | — | Apr 15 – May 6 | Jun 14 |
| Onion (from sets) | — | Mar 11 – Apr 1 | Jun 9 |
| Garlic | — | Nov 14 – Dec 12 (fall) | following summer |
| Spinach | — | Feb 25 – Mar 25 | Apr 4 |
| Basil | Mar 11 – Mar 25 | Apr 22 – May 6 | Jun 18 |
Agua Dulce's weather over time
How the growing season has shifted here, year by year, from the station's own records.
Each year's last spring frostLong-term trend
See the data as a table
| Year | Last spring frost |
|---|---|
| 1995 | Apr 19 |
| 1996 | Mar 29 |
| 1997 | Apr 4 |
| 1998 | Apr 16 |
| 1999 | Apr 29 |
| 2000 | Mar 7 |
| 2001 | Apr 20 |
| 2002 | Apr 19 |
| 2003 | Apr 17 |
| 2004 | Mar 1 |
| 2005 | Apr 20 |
| 2006 | Apr 6 |
| 2007 | Apr 21 |
| 2008 | Apr 21 |
| 2009 | Apr 29 |
| 2010 | Apr 23 |
| 2011 | Apr 10 |
| 2012 | Apr 15 |
| 2013 | Mar 9 |
| 2014 | Apr 3 |
| 2015 | Apr 8 |
| 2016 | Mar 30 |
| 2018 | Apr 17 |
| 2019 | Mar 9 |
| 2020 | Mar 28 |
| 2021 | Mar 22 |
| 2022 | Apr 13 |
| 2023 | Apr 3 |
| 2024 | Apr 7 |
| 2025 | Apr 3 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1995 | 242 |
| 1996 | 246 |
| 1997 | 247 |
| 1998 | 207 |
| 1999 | 224 |
| 2000 | 237 |
| 2001 | 224 |
| 2002 | 242 |
| 2003 | 198 |
| 2004 | 265 |
| 2005 | 220 |
| 2006 | 232 |
| 2007 | 215 |
| 2008 | 235 |
| 2009 | 198 |
| 2010 | 212 |
| 2011 | 208 |
| 2013 | 269 |
| 2014 | 268 |
| 2015 | 230 |
| 2016 | 242 |
| 2018 | 227 |
| 2019 | 263 |
| 2020 | 225 |
| 2021 | 264 |
| 2022 | 236 |
| 2023 | 248 |
| 2024 | 221 |
| 2025 | 271 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1995 | 19.9 °C |
| 1996 | 21.7 °C |
| 1997 | 21.4 °C |
| 1998 | 18.9 °C |
| 1999 | 19.7 °C |
| 2000 | 21.2 °C |
| 2001 | 21.5 °C |
| 2002 | 21.1 °C |
| 2003 | 21.3 °C |
| 2004 | 21.0 °C |
| 2005 | 20.1 °C |
| 2006 | 21.6 °C |
| 2007 | 21.1 °C |
| 2008 | 21.4 °C |
| 2009 | 21.9 °C |
| 2010 | 20.1 °C |
| 2011 | 20.1 °C |
| 2012 | 21.7 °C |
| 2013 | 22.2 °C |
| 2014 | 21.8 °C |
| 2015 | 21.2 °C |
| 2016 | 21.3 °C |
| 2017 | 21.8 °C |
| 2018 | 21.9 °C |
| 2019 | 20.4 °C |
| 2020 | 21.8 °C |
| 2021 | 22.5 °C |
| 2022 | 22.8 °C |
| 2023 | 20.2 °C |
| 2024 | 21.9 °C |
| 2025 | 21.4 °C |
What this means for you: Since 1995, Agua Dulce's last spring frost has come about 4 days earlier per decade, on average. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Acton California (NOAA GHCN-Daily). Years with too many missing days are left out.