Frost Dates for Adelanto, CA 92301
Last spring frost April 20 · First fall frost October 28 · 191 frost-free days · USDA Zone 8b
ZIP 92301 has about 38,600 people.
Long season: 191 frost-free days. Spring frost risk spans March 23–May 18 (56 days). Fall frost risk spans October 13–November 12 (30 days).
Frost probability for 92301
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 18 | April 20 | March 23 |
| Fall (first frost) | October 13 | October 28 | November 12 |
Dates come from NOAA 1971–2000 freeze probabilities at EL MIRAGE (11.8 km away); the 50% date is the median year.
Which crops fit a 191-day season in Adelanto
In Adelanto (191 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Mar 16 | May 4–May 11 | 149 | fits: 80 days to maturity, 149 available after May 4. | Jun 28 |
| Pepper | Mar 9 | May 4–May 11 | 149 | fits: 75 days to maturity, 149 available after May 4. | Jul 3 |
| Lettuce | Feb 23 | Mar 23–Mar 30 | 226 | two-plantings: Plant Mar 23 and again by Sep 6; both mature before Nov 4. | Sep 6 |
| Carrots | — | Mar 30–Apr 6 | 233 | fits: 70 days to maturity, 233 available after Mar 30. | Aug 26 |
| Cucumber | Mar 30 | May 4–May 11 | 163 | two-plantings: Plant May 4 and again by Aug 1; both mature before Oct 14. | Aug 1 |
| Beans | — | Apr 27–May 11 | 177 | two-plantings: Plant Apr 27 and again by Aug 8; both mature before Oct 21. | Aug 8 |
| Peas | — | Feb 23–May 4 | 254 | fits: 65 days to maturity, 254 available after Feb 23. | Aug 17 |
| Zucchini | Apr 6 | May 4–May 11 | 163 | two-plantings: Plant May 4 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Onion | Jan 26 | Mar 23–Apr 6 | 226 | fits: 100 days to maturity, 226 available after Mar 23. | — |
| Spinach | — | Feb 23–Apr 13 | 268 | two-plantings: Plant Feb 23 and again by Sep 25; both mature before Nov 18. | Sep 25 |
| Kale | Feb 9 | Mar 23–Apr 6 | 240 | two-plantings: Plant Mar 23 and again by Sep 10; both mature before Nov 18. | Sep 10 |
| Broccoli | Feb 23 | Mar 23–Apr 6 | 226 | fits: 80 days to maturity, 226 available after Mar 23. | Aug 2 |
| Cabbage | Feb 23 | Mar 23–Apr 6 | 240 | fits: 70 days to maturity, 240 available after Mar 23. | Aug 26 |
| Radish | — | Feb 23–May 18 | 254 | two-plantings: Plant Feb 23 and again by Sep 26; both mature before Nov 4. | Sep 26 |
| Beets | — | Feb 23–May 18 | 254 | two-plantings: Plant Feb 23 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Potatoes | — | Apr 6–Apr 13 | 212 | fits: 90 days to maturity, 212 available after Apr 6. | — |
| Garlic | — | Oct 28 | 296 | overwinter: Plant Oct 28 to Nov 18; harvest the following summer. | Nov 18 |
| Strawberry | — | Mar 16–May 11 | 247 | perennial: A perennial: plant Mar 16; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 23 | Apr 27–May 4 | 163 | fits: 75 days to maturity, 163 available after Apr 27. | Jul 10 |
| Pumpkin | Apr 6 | May 4–May 4 | 156 | fits: 100 days to maturity, 156 available after May 4. | Jun 15 |
| Cauliflower | Mar 9 | Apr 13–Apr 27 | 205 | fits: 75 days to maturity, 205 available after Apr 13. | Aug 7 |
| Swiss Chard | Feb 23 | Apr 6–Apr 6 | 212 | two-plantings: Plant Apr 6 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Arugula | — | Feb 23–May 18 | 268 | two-plantings: Plant Feb 23 and again by Sep 25; both mature before Nov 18. | Sep 25 |
| Brussel Sprouts | Feb 23 | Mar 23–Apr 6 | 240 | fits: 100 days to maturity, 240 available after Mar 23. | Jul 27 |
| Butternut Squash | Apr 6 | May 4–May 11 | 156 | fits: 100 days to maturity, 156 available after May 4. | Jun 15 |
| Eggplant | Mar 2 | May 4–May 11 | 149 | fits: 70 days to maturity, 149 available after May 4. | Jul 8 |
| Okra | Mar 23 | Apr 27–May 4 | 170 | two-plantings: Plant Apr 27 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Basil | Mar 16 | May 11–May 11 | 156 | two-plantings: Plant May 11 and again by Aug 1; both mature before Oct 14. | Aug 1 |
| Cilantro | — | Mar 23–Apr 13 | 226 | two-plantings: Plant Mar 23 and again by Sep 1; both mature before Nov 4. | Sep 1 |
| Parsley | Feb 9 | Apr 27–May 4 | 191 | fits: 70 days to maturity, 191 available after Apr 27. | Aug 12 |
| Celery | Feb 9 | Apr 27–May 11 | 191 | fits: 120 days to maturity, 191 available after Apr 27. | Jun 23 |
| Scallions | Feb 9 | Mar 23–Apr 6 | 240 | two-plantings: Plant Mar 23 and again by Sep 5; both mature before Nov 18. | Sep 5 |
| Turnip | — | Mar 23–Apr 6 | 240 | two-plantings: Plant Mar 23 and again by Sep 15; both mature before Nov 18. | Sep 15 |
| Kohlrabi | — | Mar 9–Mar 23 | 254 | two-plantings: Plant Mar 9 and again by Sep 10; both mature before Nov 18. | Sep 10 |
| Bok Choy | Mar 23 | Apr 13–Apr 20 | 205 | two-plantings: Plant Apr 13 and again by Sep 6; both mature before Nov 4. | Sep 6 |
| Collards | Feb 9 | Mar 23–Apr 6 | 240 | two-plantings: Plant Mar 23 and again by Sep 5; both mature before Nov 18. | Sep 5 |
| Cantaloupe | Apr 6 | May 4–May 11 | 149 | fits: 85 days to maturity, 149 available after May 4. | Jun 23 |
| Chives | Jan 26 | Apr 27–May 4 | 205 | fits: 90 days to maturity, 205 available after Apr 27. | — |
| Dill | — | Feb 23–May 18 | 254 | two-plantings: Plant Feb 23 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Oregano | Feb 9 | Apr 27–May 4 | 205 | fits: 80 days to maturity, 205 available after Apr 27. | — |
| Rosemary | Jan 26 | Apr 27–May 4 | 191 | fits: 80 days to maturity, 191 available after Apr 27. | — |
| Sage | Feb 23 | Apr 27–May 4 | 205 | fits: 75 days to maturity, 205 available after Apr 27. | — |
| Thyme | Feb 9 | Apr 27–May 4 | 205 | fits: 90 days to maturity, 205 available after Apr 27. | — |
| Calendula | Mar 9 | Apr 6–Apr 20 | 212 | two-plantings: Plant Apr 6 and again by Sep 1; both mature before Nov 4. | Sep 1 |
| Cosmos | Mar 23 | Apr 20–May 4 | 177 | two-plantings: Plant Apr 20 and again by Aug 1; both mature before Oct 14. | Aug 1 |
| Lavender | Jan 26 | Apr 20–May 4 | 212 | fits: 90 days to maturity, 212 available after Apr 20. | — |
| Marigolds | Mar 9 | Apr 20–Apr 27 | 177 | two-plantings: Plant Apr 20 and again by Aug 11; both mature before Oct 14. | Aug 11 |
| Melons | Apr 6 | May 4–May 11 | 149 | fits: 85 days to maturity, 149 available after May 4. | Jun 23 |
| Mint | — | Apr 20–May 4 | 212 | fits: 90 days to maturity, 212 available after Apr 20. | — |
| Nasturtiums | Mar 23 | Apr 20–Apr 27 | 177 | two-plantings: Plant Apr 20 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Pole Beans | — | Apr 27–May 11 | 170 | fits: 65 days to maturity, 170 available after Apr 27. | Jul 27 |
| Spaghetti Squash | Apr 6 | May 4–May 11 | 156 | fits: 90 days to maturity, 156 available after May 4. | Jun 25 |
| Sunflowers | — | Apr 20–May 4 | 177 | fits: 70 days to maturity, 177 available after Apr 20. | Jul 22 |
| Tomatillos | Feb 23 | Apr 27–May 4 | 156 | fits: 75 days to maturity, 156 available after Apr 27. | Jul 3 |
| Watermelon | Apr 6 | Apr 27–May 4 | 156 | fits: 80 days to maturity, 156 available after Apr 27. | Jun 28 |
| Yellow Squash | Apr 6 | May 4–May 11 | 163 | two-plantings: Plant May 4 and again by Aug 6; both mature before Oct 14. | Aug 6 |
| Zinnias | Mar 23 | Apr 20–May 4 | 177 | two-plantings: Plant Apr 20 and again by Aug 1; both mature before Oct 14. | Aug 1 |
Month by month in Adelanto
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 26), Lavender (Jan 26), Onion (Jan 26), Rosemary (Jan 26). |
| February | Start indoors: Celery (Feb 9), Collards (Feb 9), Kale (Feb 9), Oregano (Feb 9), Parsley (Feb 9), Scallions (Feb 9), +8 more. Direct sow from: Arugula (Feb 23), Beets (Feb 23), Dill (Feb 23), Peas (Feb 23), Radish (Feb 23), Spinach (Feb 23). |
| March | Start indoors: Eggplant (Mar 2), Calendula (Mar 9), Cauliflower (Mar 9), Marigolds (Mar 9), Pepper (Mar 9), Basil (Mar 16), +8 more. Direct sow from: Kohlrabi (Mar 9), Cilantro (Mar 23), Turnip (Mar 23), Carrots (Mar 30). Transplant from: Broccoli (Mar 23), Brussel Sprouts (Mar 23), Cabbage (Mar 23), Collards (Mar 23), Kale (Mar 23), Lettuce (Mar 23), +2 more. Plant: Strawberry (Mar 16). |
| April | Start indoors: Butternut Squash (Apr 6), Cantaloupe (Apr 6), Melons (Apr 6), Pumpkin (Apr 6), Spaghetti Squash (Apr 6), Watermelon (Apr 6), +2 more. Direct sow from: Potatoes (Apr 6), Sunflowers (Apr 20), Beans (Apr 27), Pole Beans (Apr 27). Transplant from: Calendula (Apr 6), Swiss Chard (Apr 6), Bok Choy (Apr 13), Cauliflower (Apr 13), Cosmos (Apr 20), Lavender (Apr 20), +15 more. Last frost around April 20. |
| May | Transplant from: Butternut Squash (May 4), Cantaloupe (May 4), Cucumber (May 4), Eggplant (May 4), Melons (May 4), Pepper (May 4), +6 more. |
| June | Last sowing dates: Butternut Squash (Jun 15), Pumpkin (Jun 15), Cantaloupe (Jun 23), Celery (Jun 23), Melons (Jun 23), Spaghetti Squash (Jun 25), +2 more. |
| July | Last sowing dates: Pepper (Jul 3), Tomatillos (Jul 3), Eggplant (Jul 8), Corn (Jul 10), Sunflowers (Jul 22), Brussel Sprouts (Jul 27), +1 more. |
| August | Last sowing dates: Basil (Aug 1), Cosmos (Aug 1), Cucumber (Aug 1), Zinnias (Aug 1), Broccoli (Aug 2), Nasturtiums (Aug 6), +13 more. |
| September | Last sowing dates: Calendula (Sep 1), Cilantro (Sep 1), Collards (Sep 5), Scallions (Sep 5), Bok Choy (Sep 6), Lettuce (Sep 6), +6 more. |
| October | Direct sow from: Garlic (Oct 28). First frost around October 28. |
| November | Last sowing dates: Garlic (Nov 18). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Adelanto, CA (ZIP 92301)?
The median last spring frost date for Adelanto, CA (ZIP code 92301) is around April 20. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before March 23; one in ten it runs past May 18.
What is the first fall frost date in Adelanto, CA?
The median first fall frost date for Adelanto, CA is around October 28. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around October 13 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Adelanto, CA?
The frost-free growing season in Adelanto is about 191 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Adelanto (191 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Adelanto, CA?
Adelanto, CA is in USDA hardiness zone 8b (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Adelanto, CA?
Start tomatoes indoors Mar 16 and plant out May 4 in Adelanto. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Adelanto?
Two: plant Mar 23 and again by Sep 6; both mature before Nov 4.
When do I plant garlic in Adelanto?
Oct 28 to Nov 18; it overwinters and is ready the following summer.
Can I get two tomato crops in Adelanto?
Yes: plant out May 4 for a summer crop, and set out a second round of transplants by Jun 28 for a fall crop.
Which nearby ZIP has a longer season?
Lancaster (ZIP 93535) has 220 frost-free days, 29 more than Adelanto (ZIP 92301). See Lancaster ZIP 93535 frost dates
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