Frost dates for Eureka Airport, NV
At Eureka Airport, the median last spring frost (32°F) is Jun 7 and the median first fall frost is Sep 17, for a typical growing season of 100 days. For a 90% chance that the last frost has passed, wait until Jun 23. Nearby ZIP codes are in USDA hardiness zones 5a to 6b.
- Jun 7Last spring frost (median)50% chance of 32°F after this date
- Jun 23Safer planting date10% chance of 32°F after this date
- Sep 17First fall frost (median)50% chance of 32°F by this date
- 100 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 |
|---|---|---|---|
| 32°F | May 22 | Jun 7 | Jun 23 |
| 28°F | May 5 | May 24 | Jun 11 |
| 24°F | Apr 21 | May 7 | Jun 1 |
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 |
|---|---|---|---|
| 32°F | Sep 2 | Sep 17 | Oct 1 |
| 28°F | Sep 11 | Sep 27 | Oct 10 |
| 24°F | Sep 24 | Oct 7 | Oct 22 |
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 | 53 days | 75 days | 94 days |
| 32°F | 79 days | 100 days | 120 days |
| 28°F | 102 days | 125 days | 148 days |
| 24°F | 123 days | 150 days | 174 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 |
|---|---|---|---|
| 89316 | 5b | -15 to -10°F | 8 km |
| 89314 | 6a | -10 to -5°F | 88 km |
| 89310 | 6b | -5 to 0°F | 98 km |
| 89822 | 5b | -15 to -10°F | 100 km |
| 89318 | 6a | -10 to -5°F | 104 km |
| 89301 | 5b | -15 to -10°F | 106 km |
| 89315 | 5a | -20 to -15°F | 110 km |
| 89821 | 6a | -10 to -5°F | 112 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 USW00003170, at 39.6014, -116.0056, elevation 1809 m (5,936 ft).
- Data quality: Representative (10+ years), 21 years of freeze data.
- Average days per year at or below 32°F: 206.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Eureka (10 km)
- Diamond Valley - Eureka 14nnw (12 km)
- Beowawe 49s - U Of N Rch (60 km)
- Moorman Rch - Ruth 16wnw (64 km)
- Snowball Rch (65 km)
- Ruby Lake Nwr (80 km)
- Austin #2 (92 km)
- Pine Valley - Carlin 20s (93 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.