Frost dates for Fallon Exp. Station, NV
At Fallon Exp. Station, the median last spring frost (32°F) is May 12 and the median first fall frost is Oct 1, for a typical growing season of 139 days. For a 90% chance that the last frost has passed, wait until Jun 4. Nearby ZIP codes are in USDA hardiness zones 7a to 7b.
- May 12Last spring frost (median)50% chance of 32°F after this date
- Jun 4Safer planting date10% chance of 32°F after this date
- Oct 1First fall frost (median)50% chance of 32°F by this date
- 139 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 12 | May 31 | Jun 17 |
| 32°F | Apr 27 | May 12 | Jun 4 |
| 28°F | Apr 14 | Apr 28 | May 16 |
| 24°F | Apr 1 | Apr 15 | Apr 29 |
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 4 | Sep 19 | Oct 4 |
| 32°F | Sep 15 | Oct 1 | Oct 16 |
| 28°F | Sep 28 | Oct 13 | Oct 26 |
| 24°F | Oct 9 | Oct 24 | Nov 5 |
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 | 89 days | 111 days | 133 days |
| 32°F | 112 days | 139 days | 162 days |
| 28°F | 144 days | 167 days | 186 days |
| 24°F | 169 days | 191 days | 210 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 89408 | 7a | 0 to 5°F | 31 km |
| 89496 | 7a | 0 to 5°F | 34 km |
| 89429 | 7a | 0 to 5°F | 43 km |
| 89442 | 7a | 0 to 5°F | 55 km |
| 89437 | 7b | 5 to 10°F | 59 km |
| 89427 | 7a | 0 to 5°F | 63 km |
| 89403 | 7a | 0 to 5°F | 65 km |
| 89434 | 7b | 5 to 10°F | 66 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 USC00262780, at 39.4572, -118.7811, elevation 1208 m (3,965 ft).
- Data quality: Representative (10+ years), 26 years of freeze data.
- Average days per year at or below 32°F: 150.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fallon Naas (7 km)
- Lahontan Dam (24 km)
- Wadsworth 4 N (51 km)
- Wabuska 6 SE (52 km)
- Yerington (60 km)
- Middlegate-Clifford (68 km)
- Lovelock Derby Field (70 km)
- Virginia City (76 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.