Frost dates for Omaha #1, NE
At Omaha #1, the median last spring frost (32°F) is Apr 16 and the median first fall frost is Oct 18, for a typical growing season of 183 days. For a 90% chance that the last frost has passed, wait until May 6. Nearby ZIP codes are in USDA hardiness zones 5b to 6a.
- Apr 16Last spring frost (median)50% chance of 32°F after this date
- May 6Safer planting date10% chance of 32°F after this date
- Oct 18First fall frost (median)50% chance of 32°F by this date
- 183 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 | May 2 | May 17 |
| 32°F | Apr 2 | Apr 16 | May 6 |
| 28°F | Mar 23 | Apr 5 | Apr 22 |
| 24°F | Mar 13 | Mar 29 | 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 25 | Oct 9 | Oct 21 |
| 32°F | Oct 2 | Oct 18 | Oct 29 |
| 28°F | Oct 13 | Oct 26 | Nov 8 |
| 24°F | Oct 21 | Nov 4 | Nov 20 |
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 | 139 days | 160 days | 182 days |
| 32°F | 159 days | 183 days | 203 days |
| 28°F | 184 days | 204 days | 222 days |
| 24°F | 203 days | 221 days | 241 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 |
|---|---|---|---|
| 68122 | 5b | -15 to -10°F | 3 km |
| 68152 | 5b | -15 to -10°F | 3 km |
| 68112 | 5b | -15 to -10°F | 6 km |
| 68104 | 6a | -10 to -5°F | 7 km |
| 68134 | 6a | -10 to -5°F | 7 km |
| 68142 | 6a | -10 to -5°F | 7 km |
| 68164 | 6a | -10 to -5°F | 9 km |
| 68132 | 6a | -10 to -5°F | 10 km |
| 68114 | 6a | -10 to -5°F | 10 km |
| 68182 | 6a | -10 to -5°F | 11 km |
| 68154 | 6a | -10 to -5°F | 12 km |
| 68124 | 6a | -10 to -5°F | 13 km |
| 68116 | 6a | -10 to -5°F | 13 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 USW00094918, at 41.3536, -96.0233, elevation 390 m (1,280 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 131.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Omaha Eppley Airfield (11 km)
- Fort Calhoun 4w (12 km)
- Blair (24 km)
- Gretna 4ne (26 km)
- Valley NWS (29 km)
- Springfield 7e (32 km)
- Fremont (38 km)
- Mead 6s (45 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.