Frost dates for Concordia Muni Airport, KS
At Concordia Muni Airport, the median last spring frost (32°F) is Apr 18 and the median first fall frost is Oct 19, for a typical growing season of 183 days. For a 90% chance that the last frost has passed, wait until May 2. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 18Last spring frost (median)50% chance of 32°F after this date
- May 2Safer planting date10% chance of 32°F after this date
- Oct 19First 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 15 | Apr 29 | May 11 |
| 32°F | Apr 3 | Apr 18 | May 2 |
| 28°F | Mar 22 | Apr 7 | Apr 22 |
| 24°F | Mar 12 | Mar 30 | Apr 14 |
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 26 | Oct 10 | Oct 22 |
| 32°F | Oct 3 | Oct 19 | Nov 1 |
| 28°F | Oct 15 | Oct 29 | Nov 12 |
| 24°F | Oct 23 | Nov 6 | Nov 23 |
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 | 143 days | 163 days | 183 days |
| 32°F | 162 days | 183 days | 203 days |
| 28°F | 181 days | 203 days | 224 days |
| 24°F | 201 days | 222 days | 245 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 |
|---|---|---|---|
| 66901 | 6b | -5 to 0°F | 1 km |
| 67417 | 6b | -5 to 0°F | 16 km |
| 66938 | 6b | -5 to 0°F | 18 km |
| 67466 | 6b | -5 to 0°F | 29 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 USW00013984, at 39.5514, -97.6508, elevation 448 m (1,469 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 121.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Concordia 1 W (2 km)
- Belleville (30 km)
- Courtland (33 km)
- Beloit (41 km)
- Minneapolis (48 km)
- Clay Center (49 km)
- Lovewell Dam (50 km)
- Mankato (54 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.