Frost dates for Beowawe 49s - U Of N Rch, NV
At Beowawe 49s - U Of N Rch, the median last spring frost (32°F) is May 28 and the median first fall frost is Sep 21, for a typical growing season of 114 days. For a 90% chance that the last frost has passed, wait until Jun 16. Nearby ZIP codes are in USDA hardiness zones 5b to 6b.
- May 28Last spring frost (median)50% chance of 32°F after this date
- Jun 16Safer planting date10% chance of 32°F after this date
- Sep 21First fall frost (median)50% chance of 32°F by this date
- 114 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 26 | Jun 11 | Jun 26 |
| 32°F | May 11 | May 28 | Jun 16 |
| 28°F | Apr 27 | May 12 | Jun 1 |
| 24°F | Apr 11 | Apr 28 | May 14 |
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 | Aug 26 | Sep 9 | Sep 22 |
| 32°F | Sep 6 | Sep 21 | Oct 3 |
| 28°F | Sep 18 | Oct 1 | Oct 14 |
| 24°F | Sep 27 | Oct 10 | Oct 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 | 69 days | 89 days | 109 days |
| 32°F | 91 days | 114 days | 137 days |
| 28°F | 116 days | 140 days | 161 days |
| 24°F | 142 days | 165 days | 188 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 | 55 km |
| 89820 | 6b | -5 to 0°F | 67 km |
| 89310 | 6b | -5 to 0°F | 67 km |
| 89822 | 5b | -15 to -10°F | 74 km |
| 89821 | 6a | -10 to -5°F | 74 km |
| 89438 | 6b | -5 to 0°F | 110 km |
| 89815 | 5b | -15 to -10°F | 112 km |
| 89045 | 6a | -10 to -5°F | 122 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 USC00260800, at 39.9003, -116.5875, elevation 1750 m (5,740 ft).
- Data quality: Standard (24+ years of data), 26 years of freeze data.
- Average days per year at or below 32°F: 199.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Diamond Valley - Eureka 14nnw (51 km)
- Eureka Airport (60 km)
- Austin #2 (61 km)
- Eureka (68 km)
- Pine Valley - Carlin 20s (72 km)
- Beowawe (77 km)
- Battle Mountain 4se (83 km)
- Ruby Lake Nwr (99 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.