Frost dates for Tacna 3 NE, AZ
At Tacna 3 NE, the median last spring frost (32°F) is Feb 13 and the median first fall frost is Dec 1, for a typical growing season of 288 days. For a 90% chance that the last frost has passed, wait until Mar 5. Nearby ZIP codes are in USDA hardiness zone 9b.
- Feb 13Last spring frost (median)50% chance of 32°F after this date
- Mar 5Safer planting date10% chance of 32°F after this date
- Dec 1First fall frost (median)50% chance of 32°F by this date
- 288 daysGrowing season (median)between 32°F freezes
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 | Feb 7 | Mar 2 | Mar 19 |
| 32°F | Jan 19 | Feb 13 | Mar 5 |
| 28°F | Dec 28 | Jan 23 | Feb 20 |
| 24°F | Dec 14 | Jan 6 | Feb 3 |
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 | Nov 3 | Nov 19 | Dec 4 |
| 32°F | Nov 14 | Dec 1 | Dec 17 |
| 28°F | Nov 24 | Dec 11 | Jan 5 |
| 24°F | Dec 3 | Dec 24 | Jan 24 |
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 | 236 days | 260 days | 286 days |
| 32°F | 261 days | 288 days | 318 days |
| 28°F | 293 days | 324 days | 353 days |
| 24°F | 325 days | 356 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 97% |
| 24°F | 65% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 85352 | 9b | 25 to 30°F | 4 km |
| 85347 | 9b | 25 to 30°F | 13 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 USC00028396, at 32.7225, -113.9192, elevation 99 m (324 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 22.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Yuma 27 ENE (28 km)
- Yuma Proving Ground (46 km)
- Dateland Whitewing Rch (48 km)
- Kofa Mine (61 km)
- Yuma Quartermaster Depot (66 km)
- Yuma MCAS (66 km)
- Painted Rock Dam (92 km)
- Ajo (107 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.