Frost dates for Arthur 4nw, NV
At Arthur 4nw, the median last spring frost (32°F) is Jun 4 and the median first fall frost is Sep 18, for a typical growing season of 105 days. For a 90% chance that the last frost has passed, wait until Jun 20. Nearby ZIP codes are in USDA hardiness zones 5a to 6b.
- Jun 4Last spring frost (median)50% chance of 32°F after this date
- Jun 20Safer planting date10% chance of 32°F after this date
- Sep 18First fall frost (median)50% chance of 32°F by this date
- 105 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 16 | Jun 4 | Jun 20 |
| 28°F | Apr 30 | May 18 | Jun 9 |
| 24°F | Apr 13 | Apr 30 | May 20 |
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 | Aug 31 | Sep 18 | Oct 2 |
| 28°F | Sep 8 | Sep 29 | Oct 16 |
| 24°F | Sep 25 | Oct 11 | 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 | 59 days | 80 days | 101 days |
| 32°F | 82 days | 105 days | 129 days |
| 28°F | 105 days | 133 days | 158 days |
| 24°F | 137 days | 163 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 |
|---|---|---|---|
| 89828 | 6a | -10 to -5°F | 14 km |
| 89823 | 5a | -20 to -15°F | 19 km |
| 89833 | 5b | -15 to -10°F | 35 km |
| 89815 | 5b | -15 to -10°F | 42 km |
| 89835 | 5b | -15 to -10°F | 61 km |
| 89801 | 5a | -20 to -15°F | 64 km |
| 89883 | 6b | -5 to 0°F | 87 km |
| 89822 | 5b | -15 to -10°F | 91 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 USC00260438, at 40.7808, -115.1853, elevation 1905 m (6,250 ft).
- Data quality: Representative (10+ years), 27 years of freeze data.
- Average days per year at or below 32°F: 196.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Clover Valley (21 km)
- Lamoille 2n (26 km)
- Lamoille Yost (29 km)
- Deeth (33 km)
- Wells (40 km)
- Ryndon (42 km)
- Elko NWS Office (48 km)
- S Fk State Rec Area (49 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.