Frost dates for 86022Fredonia, AZ
The average last spring frost in Fredonia is April 29 and the average first fall frost is October 22, giving a typical growing season of about 175 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 29
- Average first fall frost
- Oct 22
- Growing season
- 175 days
Safer after May 18 (1-in-10 risk)
Possible by Oct 6 (1-in-10 risk)
Last frost typically in 184 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) | Apr 28 · May 15 · Jun 2 | Sep 28 · Oct 12 · Oct 26 | 149 days | 100% |
| Frost / freeze (32°F) | Apr 12 · Apr 29 · May 18 | Oct 6 · Oct 22 · Nov 5 | 175 days | 100% |
| Hard freeze (28°F) | Mar 20 · Apr 11 · May 1 | Oct 16 · Nov 2 · Nov 16 | 202 days | 100% |
Planting calendar for Fredonia
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 | Mar 29 – Jun 4 |
| Tomatoes | Transplant outdoors | May 15 – Jul 2 |
| Peppers | Start seeds indoors | Mar 29 – Apr 29 |
| Peppers | Transplant outdoors | May 29 – Jun 29 |
| Eggplant | Start seeds indoors | Apr 15 – May 14 |
| Eggplant | Transplant outdoors | May 29 – Jun 29 |
| Cucumbers | Sow outdoors | May 29 – Jul 12 |
| Summer squash | Sow outdoors | May 15 – Jun 29 |
| Winter squash & pumpkins | Sow outdoors | May 29 – Jun 29 |
| Snap beans | Sow outdoors | May 15 – Aug 4 |
| Sweet corn | Sow outdoors | May 15 – Jul 2 |
| Watermelon & cantaloupe | Sow outdoors | May 29 – Jun 29 |
| Okra | Sow outdoors | May 22 – Jun 14 |
| Peas | Sow outdoors (spring) | Mar 29 – May 14 |
| Potatoes | Plant outdoors (spring) | Mar 29 – May 29 |
| Onions | Start seeds indoors (spring) | Feb 15 – Mar 14 |
| Onions | Transplant outdoors (spring) | Apr 15 – May 14 |
| Broccoli | Start seeds indoors (spring) | Mar 11 – Apr 14 |
| Broccoli | Transplant outdoors (spring) | Apr 15 – May 14 |
| Broccoli | Start seeds indoors (fall) | Jun 22 – Jul 2 |
| Broccoli | Transplant outdoors (fall) | Jul 22 – Aug 2 |
| Cabbage | Start seeds indoors (spring) | Mar 1 – Mar 29 |
| Cabbage | Transplant outdoors (spring) | Mar 29 – Apr 29 |
| Cabbage | Start seeds indoors (fall) | Jun 12 – Jul 12 |
| Cabbage | Transplant outdoors (fall) | Jul 12 – Aug 12 |
| Leaf lettuce | Sow outdoors (spring) | Mar 29 – Jun 14 |
| Leaf lettuce | Sow outdoors (fall) | Jul 12 – Aug 28 |
| Spinach | Sow outdoors (spring) | Mar 22 – May 5 |
| Spinach | Sow outdoors (fall) | Jul 29 – Sep 2 |
| Radishes | Sow outdoors (spring) | Mar 29 – May 19 |
| Radishes | Sow outdoors (fall) | Jul 12 – Sep 12 |
| Kale | Sow outdoors (spring) | Apr 15 – May 5 |
| Kale | Sow outdoors (fall) | Jul 5 – Aug 12 |
| Carrots | Sow outdoors (spring) | Apr 29 – Jun 14 |
| Carrots | Sow outdoors (fall) | Jun 12 – Jul 28 |
| Garlic | Plant outdoors (fall) | Oct 12 – Nov 12 |
Where these dates come from
ZIP code 86022 is matched to the NOAA station Kanab, UT, 14.2 km away, at 4,900 ft elevation (221 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Kanab, UT (used) | 4,900 ft | Apr 29 | Oct 22 |
| Pipe Spring Nm, AZ | 4,920 ft | May 1 | Oct 19 |
| Orderville, UT | 5,460 ft | May 15 | Oct 8 |
| Colorado City, AZ | 5,001 ft | Apr 26 | Oct 25 |
Frost dates near Fredonia
- Kanab, UT 84741 · last Apr 29, first Oct 22
- Mount Carmel, UT 84755 · last May 15, first Oct 8
- Orderville, UT 84758 · last May 15, first Oct 8
- Colorado City, AZ 86021 · last Apr 26, first Oct 25
- Hildale, UT 84784 · last Apr 26, first Oct 25
- Glendale, UT 84729 · last May 15, first Oct 8
- Springdale, UT 84767 · last Apr 13, first Nov 2
- Rockville, UT 84763 · last Apr 13, first Nov 2
Frequently asked questions
- When is the last frost in Fredonia, AZ?
- For ZIP code 86022, the average last spring frost (32°F) is April 29, based on NOAA 1991-2020 climate normals for the Kanab, UT weather station. There is a 1-in-10 chance of a frost after May 18.
- When is the first frost in Fredonia, AZ?
- The average first fall frost (32°F) is October 22. There is a 1-in-10 chance of frost by October 6, so tender plants are at risk from that point on.
- How long is the growing season in 86022?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 175 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.