Frost dates for Gallup Muni Airport, NM
At Gallup Muni Airport, the median last spring frost (32°F) is May 31 and the median first fall frost is Sep 28, for a typical growing season of 119 days. For a 90% chance that the last frost has passed, wait until Jun 14. Nearby ZIP codes are in USDA hardiness zones 6a to 6b.
- May 31Last spring frost (median)50% chance of 32°F after this date
- Jun 14Safer planting date10% chance of 32°F after this date
- Sep 28First fall frost (median)50% chance of 32°F by this date
- 119 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 | May 29 | Jun 10 | Jun 23 |
| 32°F | May 15 | May 31 | Jun 14 |
| 28°F | May 2 | May 17 | Jun 2 |
| 24°F | Apr 19 | May 2 | May 19 |
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 | Sep 11 | Sep 21 | Oct 1 |
| 32°F | Sep 17 | Sep 28 | Oct 9 |
| 28°F | Sep 26 | Oct 5 | Oct 19 |
| 24°F | Oct 2 | Oct 15 | Oct 28 |
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 | 84 days | 101 days | 118 days |
| 32°F | 101 days | 119 days | 137 days |
| 28°F | 121 days | 140 days | 161 days |
| 24°F | 142 days | 162 days | 183 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 |
|---|---|---|---|
| 87301 | 6a | -10 to -5°F | 3 km |
| 87305 | 6a | -10 to -5°F | 14 km |
| 87319 | 6a | -10 to -5°F | 14 km |
| 87375 | 6b | -5 to 0°F | 17 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 USW00023081, at 35.5144, -108.7939, elevation 1972 m (6,471 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 198.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Gallup Sand & Gravel (8 km)
- McGaffey 5 SE (37 km)
- Zuni (50 km)
- Thoreau 12 SE (63 km)
- El Morro National Mon (67 km)
- Grants Airport (90 km)
- Grants Milan Muni Airport (90 km)
- Fence Lake (96 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.