Frost Dates for Mariposa, CA 95338
Last spring frost May 16 · First fall frost October 25 · 162 frost-free days · USDA Zone 9a
ZIP 95338 has about 10,000 people.
Moderate season: 162 frost-free days. Spring frost risk spans April 22–June 9 (48 days). Fall frost risk spans October 6–November 13 (38 days).
Frost probability for 95338
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | June 9 | May 16 | April 22 |
| Fall (first frost) | October 6 | October 25 | November 13 |
Dates come from NOAA 1971–2000 freeze probabilities at CHERRY VALLEY DAM (52.1 km away); the 50% date is the median year.
Which crops fit a 162-day season in Mariposa
In Mariposa (162 frost-free days, a moderate season), 31 of 56 planner crops fit outright, 24 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 11 | May 30–Jun 6 | 120 | fits: 80 days to maturity, 120 available after May 30. | Jun 25 |
| Pepper | Apr 4 | May 30–Jun 6 | 120 | fits: 75 days to maturity, 120 available after May 30. | Jun 30 |
| Lettuce | Mar 21 | Apr 18–Apr 25 | 197 | two-plantings: Plant Apr 18 and again by Sep 3; both mature before Nov 1. | Sep 3 |
| Carrots | — | Apr 25–May 2 | 204 | fits: 70 days to maturity, 204 available after Apr 25. | Aug 23 |
| Cucumber | Apr 25 | May 30–Jun 6 | 134 | two-plantings: Plant May 30 and again by Jul 29; both mature before Oct 11. | Jul 29 |
| Beans | — | May 23–Jun 6 | 148 | two-plantings: Plant May 23 and again by Aug 5; both mature before Oct 18. | Aug 5 |
| Peas | — | Mar 21–May 30 | 225 | fits: 65 days to maturity, 225 available after Mar 21. | Aug 14 |
| Zucchini | May 2 | May 30–Jun 6 | 134 | two-plantings: Plant May 30 and again by Aug 3; both mature before Oct 11. | Aug 3 |
| Onion | Feb 21 | Apr 18–May 2 | 197 | fits: 100 days to maturity, 197 available after Apr 18. | — |
| Spinach | — | Mar 21–May 9 | 239 | two-plantings: Plant Mar 21 and again by Sep 22; both mature before Nov 15. | Sep 22 |
| Kale | Mar 7 | Apr 18–May 2 | 211 | two-plantings: Plant Apr 18 and again by Sep 7; both mature before Nov 15. | Sep 7 |
| Broccoli | Mar 21 | Apr 18–May 2 | 197 | fits: 80 days to maturity, 197 available after Apr 18. | Jul 30 |
| Cabbage | Mar 21 | Apr 18–May 2 | 211 | fits: 70 days to maturity, 211 available after Apr 18. | Aug 23 |
| Radish | — | Mar 21–Jun 13 | 225 | two-plantings: Plant Mar 21 and again by Sep 23; both mature before Nov 1. | Sep 23 |
| Beets | — | Mar 21–Jun 13 | 225 | two-plantings: Plant Mar 21 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Potatoes | — | May 2–May 9 | 183 | fits: 90 days to maturity, 183 available after May 2. | — |
| Garlic | — | Oct 25 | 267 | overwinter: Plant Oct 25 to Nov 15; harvest the following summer. | Nov 15 |
| Strawberry | — | Apr 11–Jun 6 | 218 | perennial: A perennial: plant Apr 11; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 18 | May 23–May 30 | 134 | fits: 75 days to maturity, 134 available after May 23. | Jul 7 |
| Pumpkin | May 2 | May 30–May 30 | 127 | fits: 100 days to maturity, 127 available after May 30. | Jun 12 |
| Cauliflower | Apr 4 | May 9–May 23 | 176 | fits: 75 days to maturity, 176 available after May 9. | Aug 4 |
| Swiss Chard | Mar 21 | May 2–May 2 | 183 | two-plantings: Plant May 2 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Arugula | — | Mar 21–Jun 13 | 239 | two-plantings: Plant Mar 21 and again by Sep 22; both mature before Nov 15. | Sep 22 |
| Brussel Sprouts | Mar 21 | Apr 18–May 2 | 211 | fits: 100 days to maturity, 211 available after Apr 18. | Jul 24 |
| Butternut Squash | May 2 | May 30–Jun 6 | 127 | fits: 100 days to maturity, 127 available after May 30. | Jun 12 |
| Eggplant | Mar 28 | May 30–Jun 6 | 120 | fits: 70 days to maturity, 120 available after May 30. | Jul 5 |
| Okra | Apr 18 | May 23–May 30 | 141 | two-plantings: Plant May 23 and again by Aug 3; both mature before Oct 11. | Aug 3 |
| Basil | Apr 11 | Jun 6–Jun 6 | 127 | fits: 60 days to maturity, 127 available after Jun 6. | Jul 29 |
| Cilantro | — | Apr 18–May 9 | 197 | two-plantings: Plant Apr 18 and again by Aug 29; both mature before Nov 1. | Aug 29 |
| Parsley | Mar 7 | May 23–May 30 | 162 | fits: 70 days to maturity, 162 available after May 23. | Aug 9 |
| Celery | Mar 7 | May 23–Jun 6 | 162 | fits: 120 days to maturity, 162 available after May 23. | Jun 20 |
| Scallions | Mar 7 | Apr 18–May 2 | 211 | two-plantings: Plant Apr 18 and again by Sep 2; both mature before Nov 15. | Sep 2 |
| Turnip | — | Apr 18–May 2 | 211 | two-plantings: Plant Apr 18 and again by Sep 12; both mature before Nov 15. | Sep 12 |
| Kohlrabi | — | Apr 4–Apr 18 | 225 | two-plantings: Plant Apr 4 and again by Sep 7; both mature before Nov 15. | Sep 7 |
| Bok Choy | Apr 18 | May 9–May 16 | 176 | two-plantings: Plant May 9 and again by Sep 3; both mature before Nov 1. | Sep 3 |
| Collards | Mar 7 | Apr 18–May 2 | 211 | two-plantings: Plant Apr 18 and again by Sep 2; both mature before Nov 15. | Sep 2 |
| Cantaloupe | May 2 | May 30–Jun 6 | 120 | fits: 85 days to maturity, 120 available after May 30. | Jun 20 |
| Chives | Feb 21 | May 23–May 30 | 176 | fits: 90 days to maturity, 176 available after May 23. | — |
| Dill | — | Mar 21–Jun 13 | 225 | two-plantings: Plant Mar 21 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Oregano | Mar 7 | May 23–May 30 | 176 | fits: 80 days to maturity, 176 available after May 23. | — |
| Rosemary | Feb 21 | May 23–May 30 | 162 | fits: 80 days to maturity, 162 available after May 23. | — |
| Sage | Mar 21 | May 23–May 30 | 176 | fits: 75 days to maturity, 176 available after May 23. | — |
| Thyme | Mar 7 | May 23–May 30 | 176 | fits: 90 days to maturity, 176 available after May 23. | — |
| Calendula | Apr 4 | May 2–May 16 | 183 | two-plantings: Plant May 2 and again by Aug 29; both mature before Nov 1. | Aug 29 |
| Cosmos | Apr 18 | May 16–May 30 | 148 | two-plantings: Plant May 16 and again by Jul 29; both mature before Oct 11. | Jul 29 |
| Lavender | Feb 21 | May 16–May 30 | 183 | fits: 90 days to maturity, 183 available after May 16. | — |
| Marigolds | Apr 4 | May 16–May 23 | 148 | two-plantings: Plant May 16 and again by Aug 8; both mature before Oct 11. | Aug 8 |
| Melons | May 2 | May 30–Jun 6 | 120 | fits: 85 days to maturity, 120 available after May 30. | Jun 20 |
| Mint | — | May 16–May 30 | 183 | fits: 90 days to maturity, 183 available after May 16. | — |
| Nasturtiums | Apr 18 | May 16–May 23 | 148 | two-plantings: Plant May 16 and again by Aug 3; both mature before Oct 11. | Aug 3 |
| Pole Beans | — | May 23–Jun 6 | 141 | fits: 65 days to maturity, 141 available after May 23. | Jul 24 |
| Spaghetti Squash | May 2 | May 30–Jun 6 | 127 | fits: 90 days to maturity, 127 available after May 30. | Jun 22 |
| Sunflowers | — | May 16–May 30 | 148 | fits: 70 days to maturity, 148 available after May 16. | Jul 19 |
| Tomatillos | Mar 21 | May 23–May 30 | 127 | fits: 75 days to maturity, 127 available after May 23. | Jun 30 |
| Watermelon | May 2 | May 23–May 30 | 127 | fits: 80 days to maturity, 127 available after May 23. | Jun 25 |
| Yellow Squash | May 2 | May 30–Jun 6 | 134 | two-plantings: Plant May 30 and again by Aug 3; both mature before Oct 11. | Aug 3 |
| Zinnias | Apr 18 | May 16–May 30 | 148 | two-plantings: Plant May 16 and again by Jul 29; both mature before Oct 11. | Jul 29 |
Month by month in Mariposa
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 21), Lavender (Feb 21), Onion (Feb 21), Rosemary (Feb 21). |
| March | Start indoors: Celery (Mar 7), Collards (Mar 7), Kale (Mar 7), Oregano (Mar 7), Parsley (Mar 7), Scallions (Mar 7), +9 more. Direct sow from: Arugula (Mar 21), Beets (Mar 21), Dill (Mar 21), Peas (Mar 21), Radish (Mar 21), Spinach (Mar 21). |
| April | Start indoors: Calendula (Apr 4), Cauliflower (Apr 4), Marigolds (Apr 4), Pepper (Apr 4), Basil (Apr 11), Tomato (Apr 11), +7 more. Direct sow from: Kohlrabi (Apr 4), Cilantro (Apr 18), Turnip (Apr 18), Carrots (Apr 25). Transplant from: Broccoli (Apr 18), Brussel Sprouts (Apr 18), Cabbage (Apr 18), Collards (Apr 18), Kale (Apr 18), Lettuce (Apr 18), +2 more. Plant: Strawberry (Apr 11). |
| May | Start indoors: Butternut Squash (May 2), Cantaloupe (May 2), Melons (May 2), Pumpkin (May 2), Spaghetti Squash (May 2), Watermelon (May 2), +2 more. Direct sow from: Potatoes (May 2), Sunflowers (May 16), Beans (May 23), Pole Beans (May 23). Transplant from: Calendula (May 2), Swiss Chard (May 2), Bok Choy (May 9), Cauliflower (May 9), Cosmos (May 16), Lavender (May 16), +26 more. Last frost around May 16. |
| June | Transplant from: Basil (Jun 6). Last sowing dates: Butternut Squash (Jun 12), Pumpkin (Jun 12), Cantaloupe (Jun 20), Celery (Jun 20), Melons (Jun 20), Spaghetti Squash (Jun 22), +4 more. |
| July | Last sowing dates: Eggplant (Jul 5), Corn (Jul 7), Sunflowers (Jul 19), Brussel Sprouts (Jul 24), Pole Beans (Jul 24), Basil (Jul 29), +4 more. |
| August | Last sowing dates: Nasturtiums (Aug 3), Okra (Aug 3), Yellow Squash (Aug 3), Zucchini (Aug 3), Cauliflower (Aug 4), Beans (Aug 5), +10 more. |
| September | Last sowing dates: Collards (Sep 2), Scallions (Sep 2), Bok Choy (Sep 3), Lettuce (Sep 3), Kale (Sep 7), Kohlrabi (Sep 7), +4 more. |
| October | Direct sow from: Garlic (Oct 25). First frost around October 25. |
| November | Last sowing dates: Garlic (Nov 15). |
| 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 Mariposa, CA (ZIP 95338)?
The median last spring frost date for Mariposa, CA (ZIP code 95338) is around May 16. 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 April 22; one in ten it runs past June 9.
What is the first fall frost date in Mariposa, CA?
The median first fall frost date for Mariposa, CA is around October 25. 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 6 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Mariposa, CA?
The frost-free growing season in Mariposa is about 162 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 Mariposa (162 frost-free days, a moderate season), 31 of 56 planner crops fit outright, 24 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Mariposa, CA?
Mariposa, CA is in USDA hardiness zone 9a (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 Mariposa, CA?
Start tomatoes indoors Apr 11 and plant out May 30 in Mariposa. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Mariposa?
Two: plant Apr 18 and again by Sep 3; both mature before Nov 1.
When do I plant garlic in Mariposa?
Oct 25 to Nov 15; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
Oakhurst (ZIP 93644) has 184 frost-free days, 22 more than Mariposa (ZIP 95338). See Oakhurst ZIP 93644 frost dates
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