Frost dates for Valley NWS, NE
At Valley NWS, the median last spring frost (32°F) is Apr 15 and the median first fall frost is Oct 21, for a typical growing season of 187 days. For a 90% chance that the last frost has passed, wait until Apr 29. Nearby ZIP codes are in USDA hardiness zones 5b to 6a.
- Apr 15Last spring frost (median)50% chance of 32°F after this date
- Apr 29Safer planting date10% chance of 32°F after this date
- Oct 21First fall frost (median)50% chance of 32°F by this date
- 187 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 | Apr 12 | Apr 25 | May 7 |
| 32°F | Apr 2 | Apr 15 | Apr 29 |
| 28°F | Mar 22 | Apr 5 | Apr 20 |
| 24°F | Mar 11 | Mar 28 | Apr 10 |
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 27 | Oct 12 | Oct 24 |
| 32°F | Oct 6 | Oct 21 | Nov 2 |
| 28°F | Oct 17 | Oct 31 | Nov 13 |
| 24°F | Oct 25 | Nov 8 | Nov 25 |
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 | 148 days | 168 days | 187 days |
| 32°F | 167 days | 187 days | 206 days |
| 28°F | 187 days | 207 days | 228 days |
| 24°F | 205 days | 226 days | 248 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 |
|---|---|---|---|
| 68064 | 5b | -15 to -10°F | 3 km |
| 68069 | 5b | -15 to -10°F | 10 km |
| 68073 | 5b | -15 to -10°F | 10 km |
| 68022 | 6a | -10 to -5°F | 11 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 USC00258795, at 41.3197, -96.3672, elevation 349 m (1,145 ft).
- Data quality: Representative (10+ years), 26 years of freeze data.
- Average days per year at or below 32°F: 136.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fremont (15 km)
- Mead 6s (22 km)
- Gretna 4ne (23 km)
- Wahoo (24 km)
- Fort Calhoun 4w (27 km)
- Omaha #1 (29 km)
- Ashland #2 (31 km)
- Blair (32 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.