Frost dates for 84725Enterprise, UT
The average last spring frost in Enterprise is May 21 and the average first fall frost is October 2, giving a typical growing season of about 132 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 21
- Average first fall frost
- Oct 2
- Growing season
- 132 days
Safer after Jun 7 (1-in-10 risk)
Possible by Sep 21 (1-in-10 risk)
Last frost typically in 206 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | May 17 · Jun 3 · Jun 16 | Sep 13 · Sep 24 · Oct 4 | 113 days | 100% |
| Frost / freeze (32°F) | May 4 · May 21 · Jun 7 | Sep 21 · Oct 2 · Oct 15 | 132 days | 100% |
| Hard freeze (28°F) | Apr 22 · May 6 · May 26 | Sep 28 · Oct 9 · Oct 24 | 155 days | 100% |
Planting calendar for Enterprise
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Apr 20 – Jun 26 |
| Tomatoes | Transplant outdoors | Jun 6 – Jun 12 |
| Peppers | Start seeds indoors | Apr 20 – May 21 |
| Peppers | Transplant outdoors | Jun 20 – Jul 21 |
| Eggplant | Start seeds indoors | May 7 – Jun 5 |
| Eggplant | Transplant outdoors | Jun 20 – Jul 21 |
| Cucumbers | Sow outdoors | Jun 20 – Jun 22 |
| Summer squash | Sow outdoors | Jun 6 – Jul 21 |
| Winter squash & pumpkins | Sow outdoors | Jun 20 – Jul 21 |
| Snap beans | Sow outdoors | Jun 6 – Jul 15 |
| Sweet corn | Sow outdoors | Jun 6 – Jun 12 |
| Watermelon & cantaloupe | Sow outdoors | Jun 20 – Jul 21 |
| Okra | Sow outdoors | Jun 13 – Jul 6 |
| Peas | Sow outdoors (spring) | Apr 20 – Jun 5 |
| Potatoes | Plant outdoors (spring) | Apr 20 – Jun 20 |
| Onions | Start seeds indoors (spring) | Mar 9 – Apr 5 |
| Onions | Transplant outdoors (spring) | May 7 – Jun 5 |
| Broccoli | Start seeds indoors (spring) | Apr 2 – May 6 |
| Broccoli | Transplant outdoors (spring) | May 7 – Jun 5 |
| Broccoli | Start seeds indoors (fall) | Jun 2 – Jun 12 |
| Broccoli | Transplant outdoors (fall) | Jul 2 – Jul 13 |
| Cabbage | Start seeds indoors (spring) | Mar 23 – Apr 20 |
| Cabbage | Transplant outdoors (spring) | Apr 20 – May 21 |
| Cabbage | Start seeds indoors (fall) | May 23 – Jun 22 |
| Cabbage | Transplant outdoors (fall) | Jun 22 – Jul 23 |
| Leaf lettuce | Sow outdoors (spring) | Apr 20 – Jul 6 |
| Leaf lettuce | Sow outdoors (fall) | Jun 22 – Aug 8 |
| Spinach | Sow outdoors (spring) | Apr 13 – May 27 |
| Spinach | Sow outdoors (fall) | Jul 9 – Aug 13 |
| Radishes | Sow outdoors (spring) | Apr 20 – Jun 10 |
| Radishes | Sow outdoors (fall) | Jun 22 – Aug 23 |
| Kale | Sow outdoors (spring) | May 7 – May 27 |
| Kale | Sow outdoors (fall) | Jun 15 – Jul 23 |
| Carrots | Sow outdoors (spring) | May 21 – Jul 6 |
| Carrots | Sow outdoors (fall) | May 23 – Jul 8 |
| Garlic | Plant outdoors (fall) | Sep 22 – Oct 23 |
Where these dates come from
ZIP code 84725 is matched to the NOAA station Enterprise, UT, 2.3 km away, at 5,320 ft elevation (38 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Enterprise, UT (used) | 5,320 ft | May 21 | Oct 2 |
| Enterprise Beryl Jct, UT | 5,150 ft | May 31 | Sep 20 |
| Veyo Powerhouse, UT | 4,600 ft | Apr 9 | Nov 5 |
| Modena, UT | 5,460 ft | May 20 | Oct 3 |
Frost dates near Enterprise
- Newcastle, UT 84756 · last May 31, first Sep 20
- Central, UT 84722 · last May 9, first Oct 11
- Veyo, UT 84782 · last Apr 9, first Nov 5
- Pine Valley, UT 84781 · last May 4, first Oct 13
- Modena, UT 84753 · last May 20, first Oct 3
- Dammeron Valley, UT 84783 · last Apr 9, first Nov 5
- Gunlock, UT 84733 · last Apr 9, first Nov 5
- Beryl, UT 84714 · last May 31, first Sep 20
Frequently asked questions
- When is the last frost in Enterprise, UT?
- For ZIP code 84725, the average last spring frost (32°F) is May 21, based on NOAA 1991-2020 climate normals for the Enterprise, UT weather station. There is a 1-in-10 chance of a frost after June 7.
- When is the first frost in Enterprise, UT?
- The average first fall frost (32°F) is October 2. There is a 1-in-10 chance of frost by September 21, so tender plants are at risk from that point on.
- How long is the growing season in 84725?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 132 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.