Frost dates for Mount Vernon Univ Mo - SW Center, MO
At Mount Vernon Univ Mo - SW Center, the median last spring frost (32°F) is Apr 14 and the median first fall frost is Oct 21, for a typical growing season of 188 days. For a 90% chance that the last frost has passed, wait until May 1. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 14Last spring frost (median)50% chance of 32°F after this date
- May 1Safer planting date10% chance of 32°F after this date
- Oct 21First fall frost (median)50% chance of 32°F by this date
- 188 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 10 | Apr 27 | May 10 |
| 32°F | Mar 29 | Apr 14 | May 1 |
| 28°F | Mar 16 | Apr 3 | Apr 20 |
| 24°F | Mar 4 | Mar 23 | Apr 9 |
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 10 | Oct 24 |
| 32°F | Oct 6 | Oct 21 | Nov 2 |
| 28°F | Oct 17 | Oct 30 | Nov 13 |
| 24°F | Oct 25 | Nov 8 | Nov 27 |
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 | 146 days | 165 days | 186 days |
| 32°F | 165 days | 188 days | 211 days |
| 28°F | 188 days | 212 days | 234 days |
| 24°F | 208 days | 232 days | 256 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 |
|---|---|---|---|
| 65654 | 7a | 0 to 5°F | 6 km |
| 65756 | 7a | 0 to 5°F | 8 km |
| 65712 | 7a | 0 to 5°F | 8 km |
| 65605 | 7a | 0 to 5°F | 15 km |
| 64848 | 7a | 0 to 5°F | 16 km |
| 64873 | 7a | 0 to 5°F | 17 km |
| 65707 | 7a | 0 to 5°F | 18 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 USC00235862, at 37.0733, -93.8789, elevation 363 m (1,190 ft).
- Data quality: Representative (10+ years), 17 years of freeze data.
- Average days per year at or below 32°F: 111.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Monett 4sw (25 km)
- Billings 1sw (27 km)
- Ash Grove 4s (33 km)
- Lockwood (36 km)
- Carthage (39 km)
- Cassville (43 km)
- Diamond 2w (43 km)
- Springfield (46 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.