Frost dates for Grand Island Airport, NE
At Grand Island Airport, the median last spring frost (32°F) is Apr 23 and the median first fall frost is Oct 15, for a typical growing season of 174 days. For a 90% chance that the last frost has passed, wait until May 6. Nearby ZIP codes are in USDA hardiness zone 5b.
- Apr 23Last spring frost (median)50% chance of 32°F after this date
- May 6Safer planting date10% chance of 32°F after this date
- Oct 15First fall frost (median)50% chance of 32°F by this date
- 174 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 21 | May 3 | May 15 |
| 32°F | Apr 9 | Apr 23 | May 6 |
| 28°F | Mar 31 | Apr 12 | Apr 27 |
| 24°F | Mar 18 | Apr 3 | Apr 18 |
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 22 | Oct 5 | Oct 18 |
| 32°F | Sep 29 | Oct 15 | Oct 27 |
| 28°F | Oct 9 | Oct 23 | Nov 5 |
| 24°F | Oct 18 | Nov 1 | Nov 16 |
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 | 137 days | 155 days | 172 days |
| 32°F | 154 days | 174 days | 194 days |
| 28°F | 173 days | 193 days | 211 days |
| 24°F | 191 days | 212 days | 233 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 |
|---|---|---|---|
| 68801 | 5b | -15 to -10°F | 2 km |
| 68803 | 5b | -15 to -10°F | 8 km |
| 68865 | 5b | -15 to -10°F | 13 km |
| 68827 | 5b | -15 to -10°F | 14 km |
| 68872 | 5b | -15 to -10°F | 15 km |
| 68810 | 5b | -15 to -10°F | 17 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 USW00014935, at 40.9611, -98.3136, elevation 561 m (1,840 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 145.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Aurora (29 km)
- Central City (30 km)
- Saint Paul (30 km)
- Hastings 4n (35 km)
- Hastings Muni Airport (41 km)
- Ravenna (52 km)
- Clay Center (54 km)
- York 3n (60 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.