Frost dates for Ewing, NE
At Ewing, the median last spring frost (32°F) is May 7 and the median first fall frost is Sep 30, for a typical growing season of 144 days. For a 90% chance that the last frost has passed, wait until May 21. Nearby ZIP codes are in USDA hardiness zones 5a to 5b.
- May 7Last spring frost (median)50% chance of 32°F after this date
- May 21Safer planting date10% chance of 32°F after this date
- Sep 30First fall frost (median)50% chance of 32°F by this date
- 144 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 3 | May 16 | May 30 |
| 32°F | Apr 24 | May 7 | May 21 |
| 28°F | Apr 14 | Apr 29 | May 12 |
| 24°F | Apr 2 | Apr 18 | May 3 |
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 6 | Sep 21 | Oct 3 |
| 32°F | Sep 14 | Sep 30 | Oct 13 |
| 28°F | Sep 23 | Oct 7 | Oct 22 |
| 24°F | Sep 30 | Oct 18 | Nov 2 |
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 | 106 days | 128 days | 146 days |
| 32°F | 125 days | 144 days | 162 days |
| 28°F | 141 days | 162 days | 183 days |
| 24°F | 159 days | 183 days | 205 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 |
|---|---|---|---|
| 68726 | 5a | -20 to -15°F | 14 km |
| 68735 | 5a | -20 to -15°F | 15 km |
| 68742 | 5a | -20 to -15°F | 16 km |
| 68764 | 5a | -20 to -15°F | 18 km |
| 68766 | 5b | -15 to -10°F | 19 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 USC00252805, at 42.2611, -98.3417, elevation 565 m (1,854 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 162.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Chambers (34 km)
- O'neill (34 km)
- Elgin (38 km)
- Oakdale (38 km)
- Creighton (42 km)
- Bartlett 1w (46 km)
- Verdel 6sse (52 km)
- Niobrara (59 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.