Frost dates for 84742Kanarraville, UT
The average last spring frost in Kanarraville is May 21 and the average first fall frost is September 29, giving a typical growing season of about 130 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 21
- Average first fall frost
- Sep 29
- Growing season
- 130 days
Safer after Jun 8 (1-in-10 risk)
Possible by Sep 17 (1-in-10 risk)
Last frost typically in 203 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 19 · Jun 3 · Jun 18 | Sep 8 · Sep 21 · Oct 1 | 109 days | 100% |
| Frost / freeze (32°F) | May 4 · May 21 · Jun 8 | Sep 17 · Sep 29 · Oct 14 | 130 days | 100% |
| Hard freeze (28°F) | Apr 21 · May 6 · May 25 | Sep 26 · Oct 9 · Oct 24 | 155 days | 100% |
Planting calendar for Kanarraville
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 9 |
| 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 19 |
| Summer squash | Sow outdoors | Jun 6 – Jul 21 |
| Winter squash & pumpkins | Sow outdoors | Jun 20 – Jul 21 |
| Snap beans | Sow outdoors | Jun 6 – Jul 12 |
| Sweet corn | Sow outdoors | Jun 6 – Jun 9 |
| 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) | May 30 – Jun 9 |
| Broccoli | Transplant outdoors (fall) | Jun 29 – Jul 10 |
| Cabbage | Start seeds indoors (spring) | Mar 23 – Apr 20 |
| Cabbage | Transplant outdoors (spring) | Apr 20 – May 21 |
| Cabbage | Start seeds indoors (fall) | May 20 – Jun 19 |
| Cabbage | Transplant outdoors (fall) | Jun 19 – Jul 20 |
| Leaf lettuce | Sow outdoors (spring) | Apr 20 – Jul 6 |
| Leaf lettuce | Sow outdoors (fall) | Jun 19 – Aug 5 |
| Spinach | Sow outdoors (spring) | Apr 13 – May 27 |
| Spinach | Sow outdoors (fall) | Jul 6 – Aug 10 |
| Radishes | Sow outdoors (spring) | Apr 20 – Jun 10 |
| Radishes | Sow outdoors (fall) | Jun 19 – Aug 20 |
| Kale | Sow outdoors (spring) | May 7 – May 27 |
| Kale | Sow outdoors (fall) | Jun 12 – Jul 20 |
| Carrots | Sow outdoors (spring) | May 21 – Jul 6 |
| Carrots | Sow outdoors (fall) | May 20 – Jul 5 |
| Garlic | Plant outdoors (fall) | Sep 19 – Oct 20 |
Where these dates come from
ZIP code 84742 is matched to the NOAA station Cedar City Muni Ap, UT, 20.5 km away, at 5,586 ft elevation (41 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Cedar City Muni Ap, UT (used) | 5,586 ft | May 21 | Sep 29 |
| New Harmony, UT | 5,167 ft | May 9 | Oct 11 |
| Cedar City, UT | 6,090 ft | May 4 | Oct 13 |
| Cedar City 5E, UT | 6,465 ft | May 23 | Oct 4 |
Frost dates near Kanarraville
- New Harmony, UT 84757 · last May 9, first Oct 11
- Cedar City, UT 84720 · last May 4, first Oct 13
- Toquerville, UT 84774 · last Apr 1, first Nov 5
- Pine Valley, UT 84781 · last May 4, first Oct 13
- La Verkin, UT 84745 · last Apr 13, first Nov 2
- Brian Head, UT 84719 · last Jun 21, first Sep 12
- Summit, UT 84772 · last May 4, first Oct 13
- Leeds, UT 84746 · last Apr 1, first Nov 5
Frequently asked questions
- When is the last frost in Kanarraville, UT?
- For ZIP code 84742, the average last spring frost (32°F) is May 21, based on NOAA 1991-2020 climate normals for the Cedar City Muni Ap, UT weather station. There is a 1-in-10 chance of a frost after June 8.
- When is the first frost in Kanarraville, UT?
- The average first fall frost (32°F) is September 29. There is a 1-in-10 chance of frost by September 17, so tender plants are at risk from that point on.
- How long is the growing season in 84742?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 130 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.