Frost dates for Sweet Springs, MO
At Sweet Springs, the median last spring frost (32°F) is Apr 17 and the median first fall frost is Oct 20, for a typical growing season of 184 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 17Last spring frost (median)50% chance of 32°F after this date
- May 2Safer planting date10% chance of 32°F after this date
- Oct 20First fall frost (median)50% chance of 32°F by this date
- 184 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 14 | Apr 28 | May 11 |
| 32°F | Apr 3 | Apr 17 | May 2 |
| 28°F | Mar 19 | Apr 4 | Apr 20 |
| 24°F | Mar 5 | Mar 24 | 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 24 | Oct 9 | Oct 22 |
| 32°F | Oct 1 | Oct 20 | Nov 1 |
| 28°F | Oct 15 | Oct 29 | Nov 10 |
| 24°F | Oct 26 | Nov 6 | Nov 22 |
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 | 182 days |
| 32°F | 162 days | 184 days | 205 days |
| 28°F | 186 days | 207 days | 227 days |
| 24°F | 207 days | 228 days | 252 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 |
|---|---|---|---|
| 65351 | 6b | -5 to 0°F | 5 km |
| 65327 | 6b | -5 to 0°F | 6 km |
| 65333 | 6b | -5 to 0°F | 11 km |
| 65321 | 6b | -5 to 0°F | 12 km |
| 65337 | 6b | -5 to 0°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 USC00238223, at 38.9664, -93.4194, elevation 206 m (675 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 112.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Marshall (25 km)
- Higginsville (28 km)
- Waverly (29 km)
- Sedalia Mem Airport (36 km)
- Sedalia Water Plant (37 km)
- Warrensburg 4nw (39 km)
- Carrollton (44 km)
- Lexington 3e (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.