Frost Dates for Tooele, UT 84074
Last spring frost May 7 · First fall frost October 17 · 163 frost-free days · USDA Zone 7a
ZIP 84074 has about 59,700 people.
Moderate season: 163 frost-free days. Spring frost risk spans April 16–May 27 (41 days). Fall frost risk spans October 2–November 2 (31 days).
Frost probability for 84074
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 27 | May 7 | April 16 |
| Fall (first frost) | October 2 | October 17 | November 2 |
Dates come from NOAA 1971–2000 freeze probabilities at TOOELE (4.7 km away); the 50% date is the median year.
Which crops fit a 163-day season in Tooele
In Tooele (163 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 2 | May 21–May 28 | 121 | fits: 80 days to maturity, 121 available after May 21. | Jun 17 |
| Pepper | Mar 26 | May 21–May 28 | 121 | fits: 75 days to maturity, 121 available after May 21. | Jun 22 |
| Lettuce | Mar 12 | Apr 9–Apr 16 | 198 | two-plantings: Plant Apr 9 and again by Aug 26; both mature before Oct 24. | Aug 26 |
| Carrots | — | Apr 16–Apr 23 | 205 | fits: 70 days to maturity, 205 available after Apr 16. | Aug 15 |
| Cucumber | Apr 16 | May 21–May 28 | 135 | two-plantings: Plant May 21 and again by Jul 21; both mature before Oct 3. | Jul 21 |
| Beans | — | May 14–May 28 | 149 | two-plantings: Plant May 14 and again by Jul 28; both mature before Oct 10. | Jul 28 |
| Peas | — | Mar 12–May 21 | 226 | fits: 65 days to maturity, 226 available after Mar 12. | Aug 6 |
| Zucchini | Apr 23 | May 21–May 28 | 135 | two-plantings: Plant May 21 and again by Jul 26; both mature before Oct 3. | Jul 26 |
| Onion | Feb 12 | Apr 9–Apr 23 | 198 | fits: 100 days to maturity, 198 available after Apr 9. | — |
| Spinach | — | Mar 12–Apr 30 | 240 | two-plantings: Plant Mar 12 and again by Sep 14; both mature before Nov 7. | Sep 14 |
| Kale | Feb 26 | Apr 9–Apr 23 | 212 | two-plantings: Plant Apr 9 and again by Aug 30; both mature before Nov 7. | Aug 30 |
| Broccoli | Mar 12 | Apr 9–Apr 23 | 198 | fits: 80 days to maturity, 198 available after Apr 9. | Jul 22 |
| Cabbage | Mar 12 | Apr 9–Apr 23 | 212 | fits: 70 days to maturity, 212 available after Apr 9. | Aug 15 |
| Radish | — | Mar 12–Jun 4 | 226 | two-plantings: Plant Mar 12 and again by Sep 15; both mature before Oct 24. | Sep 15 |
| Beets | — | Mar 12–Jun 4 | 226 | two-plantings: Plant Mar 12 and again by Aug 16; both mature before Oct 24. | Aug 16 |
| Potatoes | — | Apr 23–Apr 30 | 184 | fits: 90 days to maturity, 184 available after Apr 23. | — |
| Garlic | — | Oct 17 | 268 | overwinter: Plant Oct 17 to Nov 7; harvest the following summer. | Nov 7 |
| Strawberry | — | Apr 2–May 28 | 219 | perennial: A perennial: plant Apr 2; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 9 | May 14–May 21 | 135 | fits: 75 days to maturity, 135 available after May 14. | Jun 29 |
| Pumpkin | Apr 23 | May 21–May 21 | 128 | fits: 100 days to maturity, 128 available after May 21. | Jun 4 |
| Cauliflower | Mar 26 | Apr 30–May 14 | 177 | fits: 75 days to maturity, 177 available after Apr 30. | Jul 27 |
| Swiss Chard | Mar 12 | Apr 23–Apr 23 | 184 | two-plantings: Plant Apr 23 and again by Aug 16; both mature before Oct 24. | Aug 16 |
| Arugula | — | Mar 12–Jun 4 | 240 | two-plantings: Plant Mar 12 and again by Sep 14; both mature before Nov 7. | Sep 14 |
| Brussel Sprouts | Mar 12 | Apr 9–Apr 23 | 212 | fits: 100 days to maturity, 212 available after Apr 9. | Jul 16 |
| Butternut Squash | Apr 23 | May 21–May 28 | 128 | fits: 100 days to maturity, 128 available after May 21. | Jun 4 |
| Eggplant | Mar 19 | May 21–May 28 | 121 | fits: 70 days to maturity, 121 available after May 21. | Jun 27 |
| Okra | Apr 9 | May 14–May 21 | 142 | two-plantings: Plant May 14 and again by Jul 26; both mature before Oct 3. | Jul 26 |
| Basil | Apr 2 | May 28–May 28 | 128 | fits: 60 days to maturity, 128 available after May 28. | Jul 21 |
| Cilantro | — | Apr 9–Apr 30 | 198 | two-plantings: Plant Apr 9 and again by Aug 21; both mature before Oct 24. | Aug 21 |
| Parsley | Feb 26 | May 14–May 21 | 163 | fits: 70 days to maturity, 163 available after May 14. | Aug 1 |
| Celery | Feb 26 | May 14–May 28 | 163 | fits: 120 days to maturity, 163 available after May 14. | Jun 12 |
| Scallions | Feb 26 | Apr 9–Apr 23 | 212 | two-plantings: Plant Apr 9 and again by Aug 25; both mature before Nov 7. | Aug 25 |
| Turnip | — | Apr 9–Apr 23 | 212 | two-plantings: Plant Apr 9 and again by Sep 4; both mature before Nov 7. | Sep 4 |
| Kohlrabi | — | Mar 26–Apr 9 | 226 | two-plantings: Plant Mar 26 and again by Aug 30; both mature before Nov 7. | Aug 30 |
| Bok Choy | Apr 9 | Apr 30–May 7 | 177 | two-plantings: Plant Apr 30 and again by Aug 26; both mature before Oct 24. | Aug 26 |
| Collards | Feb 26 | Apr 9–Apr 23 | 212 | two-plantings: Plant Apr 9 and again by Aug 25; both mature before Nov 7. | Aug 25 |
| Cantaloupe | Apr 23 | May 21–May 28 | 121 | fits: 85 days to maturity, 121 available after May 21. | Jun 12 |
| Chives | Feb 12 | May 14–May 21 | 177 | fits: 90 days to maturity, 177 available after May 14. | — |
| Dill | — | Mar 12–Jun 4 | 226 | two-plantings: Plant Mar 12 and again by Aug 16; both mature before Oct 24. | Aug 16 |
| Oregano | Feb 26 | May 14–May 21 | 177 | fits: 80 days to maturity, 177 available after May 14. | — |
| Rosemary | Feb 12 | May 14–May 21 | 163 | fits: 80 days to maturity, 163 available after May 14. | — |
| Sage | Mar 12 | May 14–May 21 | 177 | fits: 75 days to maturity, 177 available after May 14. | — |
| Thyme | Feb 26 | May 14–May 21 | 177 | fits: 90 days to maturity, 177 available after May 14. | — |
| Calendula | Mar 26 | Apr 23–May 7 | 184 | two-plantings: Plant Apr 23 and again by Aug 21; both mature before Oct 24. | Aug 21 |
| Cosmos | Apr 9 | May 7–May 21 | 149 | two-plantings: Plant May 7 and again by Jul 21; both mature before Oct 3. | Jul 21 |
| Lavender | Feb 12 | May 7–May 21 | 184 | fits: 90 days to maturity, 184 available after May 7. | — |
| Marigolds | Mar 26 | May 7–May 14 | 149 | two-plantings: Plant May 7 and again by Jul 31; both mature before Oct 3. | Jul 31 |
| Melons | Apr 23 | May 21–May 28 | 121 | fits: 85 days to maturity, 121 available after May 21. | Jun 12 |
| Mint | — | May 7–May 21 | 184 | fits: 90 days to maturity, 184 available after May 7. | — |
| Nasturtiums | Apr 9 | May 7–May 14 | 149 | two-plantings: Plant May 7 and again by Jul 26; both mature before Oct 3. | Jul 26 |
| Pole Beans | — | May 14–May 28 | 142 | fits: 65 days to maturity, 142 available after May 14. | Jul 16 |
| Spaghetti Squash | Apr 23 | May 21–May 28 | 128 | fits: 90 days to maturity, 128 available after May 21. | Jun 14 |
| Sunflowers | — | May 7–May 21 | 149 | fits: 70 days to maturity, 149 available after May 7. | Jul 11 |
| Tomatillos | Mar 12 | May 14–May 21 | 128 | fits: 75 days to maturity, 128 available after May 14. | Jun 22 |
| Watermelon | Apr 23 | May 14–May 21 | 128 | fits: 80 days to maturity, 128 available after May 14. | Jun 17 |
| Yellow Squash | Apr 23 | May 21–May 28 | 135 | two-plantings: Plant May 21 and again by Jul 26; both mature before Oct 3. | Jul 26 |
| Zinnias | Apr 9 | May 7–May 21 | 149 | two-plantings: Plant May 7 and again by Jul 21; both mature before Oct 3. | Jul 21 |
Month by month in Tooele
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 12), Lavender (Feb 12), Onion (Feb 12), Rosemary (Feb 12), Celery (Feb 26), Collards (Feb 26), +5 more. |
| March | Start indoors: Broccoli (Mar 12), Brussel Sprouts (Mar 12), Cabbage (Mar 12), Lettuce (Mar 12), Sage (Mar 12), Swiss Chard (Mar 12), +6 more. Direct sow from: Arugula (Mar 12), Beets (Mar 12), Dill (Mar 12), Peas (Mar 12), Radish (Mar 12), Spinach (Mar 12), +1 more. |
| April | Start indoors: Basil (Apr 2), Tomato (Apr 2), Bok Choy (Apr 9), Corn (Apr 9), Cosmos (Apr 9), Nasturtiums (Apr 9), +11 more. Direct sow from: Cilantro (Apr 9), Turnip (Apr 9), Carrots (Apr 16), Potatoes (Apr 23). Transplant from: Broccoli (Apr 9), Brussel Sprouts (Apr 9), Cabbage (Apr 9), Collards (Apr 9), Kale (Apr 9), Lettuce (Apr 9), +6 more. Plant: Strawberry (Apr 2). |
| May | Direct sow from: Sunflowers (May 7), Beans (May 14), Pole Beans (May 14). Transplant from: Cosmos (May 7), Lavender (May 7), Marigolds (May 7), Mint (May 7), Nasturtiums (May 7), Zinnias (May 7), +23 more. Last frost around May 7. |
| June | Last sowing dates: Butternut Squash (Jun 4), Pumpkin (Jun 4), Cantaloupe (Jun 12), Celery (Jun 12), Melons (Jun 12), Spaghetti Squash (Jun 14), +6 more. |
| July | Last sowing dates: Sunflowers (Jul 11), Brussel Sprouts (Jul 16), Pole Beans (Jul 16), Basil (Jul 21), Cosmos (Jul 21), Cucumber (Jul 21), +9 more. |
| August | Last sowing dates: Parsley (Aug 1), Peas (Aug 6), Cabbage (Aug 15), Carrots (Aug 15), Beets (Aug 16), Dill (Aug 16), +9 more. |
| September | Last sowing dates: Turnip (Sep 4), Arugula (Sep 14), Spinach (Sep 14), Radish (Sep 15). |
| October | Direct sow from: Garlic (Oct 17). First frost around October 17. |
| November | Last sowing dates: Garlic (Nov 7). |
| 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 Tooele, UT (ZIP 84074)?
The median last spring frost date for Tooele, UT (ZIP code 84074) is around May 7. 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 16; one in ten it runs past May 27.
What is the first fall frost date in Tooele, UT?
The median first fall frost date for Tooele, UT is around October 17. 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 2 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Tooele, UT?
The frost-free growing season in Tooele is about 163 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 Tooele (163 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 Tooele, UT?
Tooele, UT is in USDA hardiness zone 7a (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 Tooele, UT?
Start tomatoes indoors Apr 2 and plant out May 21 in Tooele. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Tooele?
Two: plant Apr 9 and again by Aug 26; both mature before Oct 24.
When do I plant garlic in Tooele?
Oct 17 to Nov 7; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
South Jordan (ZIP 84009) has 186 frost-free days, 23 more than Tooele (ZIP 84074). See South Jordan ZIP 84009 frost dates
Nearby and related
- Frost dates for Herriman, UT 84096 (12.2 mi)
- Frost dates for South Jordan, UT 84009 (13 mi)
- Frost dates for Magna, UT 84044 (13.4 mi)
- Frost dates for West Jordan, UT 84081 (13.8 mi)
- Frost dates for Salt Lake City, UT 84118 (14.8 mi)
- When to plant in UT
- When to plant Peppers in UT
- When to plant Cucumbers in UT
- When to plant Zucchini in UT
- When to plant Butternut Squash in UT
- When to plant Basil in UT
- When to plant Sweet Corn in UT
- Look up another ZIP