Frost dates for Tuba City, AZ
At Tuba City, the median last spring frost (32°F) is Apr 16 and the median first fall frost is Oct 28, for a typical growing season of 193 days. For a 90% chance that the last frost has passed, wait until May 4. Nearby ZIP codes are in USDA hardiness zones 7a to 7b.
- Apr 16Last spring frost (median)50% chance of 32°F after this date
- May 4Safer planting date10% chance of 32°F after this date
- Oct 28First fall frost (median)50% chance of 32°F by this date
- 193 daysGrowing season (median)between 32°F freezes
USDA hardiness zone 7b (5 to 10°F) · see all zone 7b frost dates
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 15 | Apr 30 | May 22 |
| 32°F | Mar 31 | Apr 16 | May 4 |
| 28°F | Mar 8 | Mar 30 | Apr 21 |
| 24°F | Feb 18 | Mar 8 | Apr 6 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 1 | Oct 17 | Nov 1 |
| 32°F | Oct 13 | Oct 28 | Nov 12 |
| 28°F | Oct 22 | Nov 7 | Nov 22 |
| 24°F | Nov 2 | Nov 19 | Dec 3 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 143 days | 169 days | 190 days |
| 32°F | 166 days | 193 days | 217 days |
| 28°F | 191 days | 221 days | 246 days |
| 24°F | 220 days | 252 days | 277 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 86045 | 7b | 5 to 10°F | 11 km |
| 86020 | 7b | 5 to 10°F | 28 km |
| 86030 | 7a | 0 to 5°F | 50 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00028792, at 36.1306, -111.2436, elevation 1520 m (4,988 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 119.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Grand Canyon E Entrance (54 km)
- Wupatki National Monument (68 km)
- Bright Angel Ranger Station (74 km)
- Phantom Rch (76 km)
- Grand Canyon Visitor Center (78 km)
- Grand Canyon National Park 2 (82 km)
- Grand Canyon National Park Airport (84 km)
- Betatakin (87 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.