Frost Dates for Provo, UT 84604
Last spring frost May 11 · First fall frost October 10 · 152 frost-free days · USDA Zone 6b
ZIP 84604 has about 44,700 people, the largest of 4 ZIP codes in Provo.
Moderate season: 152 frost-free days. Spring frost risk spans April 25–May 28 (33 days). Fall frost risk spans September 18–November 1 (44 days).
Frost probability for 84604
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 28 | May 11 | April 25 |
| Fall (first frost) | September 18 | October 10 | November 1 |
Dates come from NOAA 1971–2000 freeze probabilities at TIMPANOGOS CAVE (17.1 km away); the 50% date is the median year.
Frost dates by ZIP code in Provo, UT
| ZIP | Last spring frost (50%) | First fall frost (50%) | Zone |
|---|---|---|---|
| 84604 | May 11 | October 10 | 6b |
| 84606 | May 3 | October 16 | 7a |
| 84601 | May 3 | October 16 | 7a |
| 84602 | May 3 | October 16 | 5b (est.) |
Which crops fit a 152-day season in Provo
In Provo (152 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 6 | May 25–Jun 1 | 110 | fits: 80 days to maturity, 110 available after May 25. | Jun 10 |
| Pepper | Mar 30 | May 25–Jun 1 | 110 | fits: 75 days to maturity, 110 available after May 25. | Jun 15 |
| Lettuce | Mar 16 | Apr 13–Apr 20 | 187 | two-plantings: Plant Apr 13 and again by Aug 19; both mature before Oct 17. | Aug 19 |
| Carrots | — | Apr 20–Apr 27 | 194 | fits: 70 days to maturity, 194 available after Apr 20. | Aug 8 |
| Cucumber | Apr 20 | May 25–Jun 1 | 124 | fits: 60 days to maturity, 124 available after May 25. | Jul 14 |
| Beans | — | May 18–Jun 1 | 138 | two-plantings: Plant May 18 and again by Jul 21; both mature before Oct 3. | Jul 21 |
| Peas | — | Mar 16–May 25 | 215 | fits: 65 days to maturity, 215 available after Mar 16. | Jul 30 |
| Zucchini | Apr 27 | May 25–Jun 1 | 124 | two-plantings: Plant May 25 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Onion | Feb 16 | Apr 13–Apr 27 | 187 | fits: 100 days to maturity, 187 available after Apr 13. | — |
| Spinach | — | Mar 16–May 4 | 229 | two-plantings: Plant Mar 16 and again by Sep 7; both mature before Oct 31. | Sep 7 |
| Kale | Mar 2 | Apr 13–Apr 27 | 201 | two-plantings: Plant Apr 13 and again by Aug 23; both mature before Oct 31. | Aug 23 |
| Broccoli | Mar 16 | Apr 13–Apr 27 | 187 | fits: 80 days to maturity, 187 available after Apr 13. | Jul 15 |
| Cabbage | Mar 16 | Apr 13–Apr 27 | 201 | fits: 70 days to maturity, 201 available after Apr 13. | Aug 8 |
| Radish | — | Mar 16–Jun 8 | 215 | two-plantings: Plant Mar 16 and again by Sep 8; both mature before Oct 17. | Sep 8 |
| Beets | — | Mar 16–Jun 8 | 215 | two-plantings: Plant Mar 16 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Potatoes | — | Apr 27–May 4 | 173 | fits: 90 days to maturity, 173 available after Apr 27. | — |
| Garlic | — | Oct 10 | 257 | overwinter: Plant Oct 10 to Oct 31; harvest the following summer. | Oct 31 |
| Strawberry | — | Apr 6–Jun 1 | 208 | perennial: A perennial: plant Apr 6; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 13 | May 18–May 25 | 124 | fits: 75 days to maturity, 124 available after May 18. | Jun 22 |
| Pumpkin | Apr 27 | May 25–May 25 | 117 | fits: 100 days to maturity, 117 available after May 25. | May 28 |
| Cauliflower | Mar 30 | May 4–May 18 | 166 | fits: 75 days to maturity, 166 available after May 4. | Jul 20 |
| Swiss Chard | Mar 16 | Apr 27–Apr 27 | 173 | two-plantings: Plant Apr 27 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Arugula | — | Mar 16–Jun 8 | 229 | two-plantings: Plant Mar 16 and again by Sep 7; both mature before Oct 31. | Sep 7 |
| Brussel Sprouts | Mar 16 | Apr 13–Apr 27 | 201 | fits: 100 days to maturity, 201 available after Apr 13. | Jul 9 |
| Butternut Squash | Apr 27 | May 25–Jun 1 | 117 | fits: 100 days to maturity, 117 available after May 25. | May 28 |
| Eggplant | Mar 23 | May 25–Jun 1 | 110 | fits: 70 days to maturity, 110 available after May 25. | Jun 20 |
| Okra | Apr 13 | May 18–May 25 | 131 | two-plantings: Plant May 18 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Basil | Apr 6 | Jun 1–Jun 1 | 117 | fits: 60 days to maturity, 117 available after Jun 1. | Jul 14 |
| Cilantro | — | Apr 13–May 4 | 187 | two-plantings: Plant Apr 13 and again by Aug 14; both mature before Oct 17. | Aug 14 |
| Parsley | Mar 2 | May 18–May 25 | 152 | fits: 70 days to maturity, 152 available after May 18. | Jul 25 |
| Celery | Mar 2 | May 18–Jun 1 | 152 | fits: 120 days to maturity, 152 available after May 18. | Jun 5 |
| Scallions | Mar 2 | Apr 13–Apr 27 | 201 | two-plantings: Plant Apr 13 and again by Aug 18; both mature before Oct 31. | Aug 18 |
| Turnip | — | Apr 13–Apr 27 | 201 | two-plantings: Plant Apr 13 and again by Aug 28; both mature before Oct 31. | Aug 28 |
| Kohlrabi | — | Mar 30–Apr 13 | 215 | two-plantings: Plant Mar 30 and again by Aug 23; both mature before Oct 31. | Aug 23 |
| Bok Choy | Apr 13 | May 4–May 11 | 166 | two-plantings: Plant May 4 and again by Aug 19; both mature before Oct 17. | Aug 19 |
| Collards | Mar 2 | Apr 13–Apr 27 | 201 | two-plantings: Plant Apr 13 and again by Aug 18; both mature before Oct 31. | Aug 18 |
| Cantaloupe | Apr 27 | May 25–Jun 1 | 110 | fits: 85 days to maturity, 110 available after May 25. | Jun 5 |
| Chives | Feb 16 | May 18–May 25 | 166 | fits: 90 days to maturity, 166 available after May 18. | — |
| Dill | — | Mar 16–Jun 8 | 215 | two-plantings: Plant Mar 16 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Oregano | Mar 2 | May 18–May 25 | 166 | fits: 80 days to maturity, 166 available after May 18. | — |
| Rosemary | Feb 16 | May 18–May 25 | 152 | fits: 80 days to maturity, 152 available after May 18. | — |
| Sage | Mar 16 | May 18–May 25 | 166 | fits: 75 days to maturity, 166 available after May 18. | — |
| Thyme | Mar 2 | May 18–May 25 | 166 | fits: 90 days to maturity, 166 available after May 18. | — |
| Calendula | Mar 30 | Apr 27–May 11 | 173 | two-plantings: Plant Apr 27 and again by Aug 14; both mature before Oct 17. | Aug 14 |
| Cosmos | Apr 13 | May 11–May 25 | 138 | two-plantings: Plant May 11 and again by Jul 14; both mature before Sep 26. | Jul 14 |
| Lavender | Feb 16 | May 11–May 25 | 173 | fits: 90 days to maturity, 173 available after May 11. | — |
| Marigolds | Mar 30 | May 11–May 18 | 138 | two-plantings: Plant May 11 and again by Jul 24; both mature before Sep 26. | Jul 24 |
| Melons | Apr 27 | May 25–Jun 1 | 110 | fits: 85 days to maturity, 110 available after May 25. | Jun 5 |
| Mint | — | May 11–May 25 | 173 | fits: 90 days to maturity, 173 available after May 11. | — |
| Nasturtiums | Apr 13 | May 11–May 18 | 138 | two-plantings: Plant May 11 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Pole Beans | — | May 18–Jun 1 | 131 | fits: 65 days to maturity, 131 available after May 18. | Jul 9 |
| Spaghetti Squash | Apr 27 | May 25–Jun 1 | 117 | fits: 90 days to maturity, 117 available after May 25. | Jun 7 |
| Sunflowers | — | May 11–May 25 | 138 | fits: 70 days to maturity, 138 available after May 11. | Jul 4 |
| Tomatillos | Mar 16 | May 18–May 25 | 117 | fits: 75 days to maturity, 117 available after May 18. | Jun 15 |
| Watermelon | Apr 27 | May 18–May 25 | 117 | fits: 80 days to maturity, 117 available after May 18. | Jun 10 |
| Yellow Squash | Apr 27 | May 25–Jun 1 | 124 | two-plantings: Plant May 25 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Zinnias | Apr 13 | May 11–May 25 | 138 | two-plantings: Plant May 11 and again by Jul 14; both mature before Sep 26. | Jul 14 |
Month by month in Provo
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 16), Lavender (Feb 16), Onion (Feb 16), Rosemary (Feb 16). |
| March | Start indoors: Celery (Mar 2), Collards (Mar 2), Kale (Mar 2), Oregano (Mar 2), Parsley (Mar 2), Scallions (Mar 2), +13 more. Direct sow from: Arugula (Mar 16), Beets (Mar 16), Dill (Mar 16), Peas (Mar 16), Radish (Mar 16), Spinach (Mar 16), +1 more. |
| April | Start indoors: Basil (Apr 6), Tomato (Apr 6), Bok Choy (Apr 13), Corn (Apr 13), Cosmos (Apr 13), Nasturtiums (Apr 13), +11 more. Direct sow from: Cilantro (Apr 13), Turnip (Apr 13), Carrots (Apr 20), Potatoes (Apr 27). Transplant from: Broccoli (Apr 13), Brussel Sprouts (Apr 13), Cabbage (Apr 13), Collards (Apr 13), Kale (Apr 13), Lettuce (Apr 13), +4 more. Plant: Strawberry (Apr 6). |
| May | Direct sow from: Sunflowers (May 11), Beans (May 18), Pole Beans (May 18). Transplant from: Bok Choy (May 4), Cauliflower (May 4), Cosmos (May 11), Lavender (May 11), Marigolds (May 11), Mint (May 11), +24 more. Last frost around May 11. Last sowing dates: Butternut Squash (May 28), Pumpkin (May 28). |
| June | Transplant from: Basil (Jun 1). Last sowing dates: Cantaloupe (Jun 5), Celery (Jun 5), Melons (Jun 5), Spaghetti Squash (Jun 7), Tomato (Jun 10), Watermelon (Jun 10), +4 more. |
| July | Last sowing dates: Sunflowers (Jul 4), Brussel Sprouts (Jul 9), Pole Beans (Jul 9), Basil (Jul 14), Cosmos (Jul 14), Cucumber (Jul 14), +11 more. |
| August | Last sowing dates: Cabbage (Aug 8), Carrots (Aug 8), Beets (Aug 9), Dill (Aug 9), Swiss Chard (Aug 9), Calendula (Aug 14), +8 more. |
| September | Last sowing dates: Arugula (Sep 7), Spinach (Sep 7), Radish (Sep 8). |
| October | Direct sow from: Garlic (Oct 10). First frost around October 10. Last sowing dates: Garlic (Oct 31). |
| November | Harvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year. |
| 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 Provo, UT (ZIP 84604)?
The median last spring frost date for Provo, UT (ZIP code 84604) is around May 11. 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 25; one in ten it runs past May 28.
What is the first fall frost date in Provo, UT?
The median first fall frost date for Provo, UT is around October 10. 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 September 18 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Provo, UT?
The frost-free growing season in Provo is about 152 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 Provo (152 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Provo, UT?
Provo, UT is in USDA hardiness zone 6b (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 Provo, UT?
Start tomatoes indoors Apr 6 and plant out May 25 in Provo. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Provo?
Two: plant Apr 13 and again by Aug 19; both mature before Oct 17.
When do I plant garlic in Provo?
Oct 10 to Oct 31; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
Springville (ZIP 84663) has 166 frost-free days, 14 more than Provo (ZIP 84604). See Springville ZIP 84663 frost dates
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