Frost dates for Mountain Grove 2 N, MO
At Mountain Grove 2 N, the median last spring frost (32°F) is Apr 11 and the median first fall frost is Oct 28, for a typical growing season of 196 days. For a 90% chance that the last frost has passed, wait until Apr 29. Nearby ZIP codes are in USDA hardiness zones 6b to 7a.
- Apr 11Last spring frost (median)50% chance of 32°F after this date
- Apr 29Safer planting date10% chance of 32°F after this date
- Oct 28First fall frost (median)50% chance of 32°F by this date
- 196 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 6 | Apr 25 | May 10 |
| 32°F | Mar 25 | Apr 11 | Apr 29 |
| 28°F | Mar 12 | Mar 31 | Apr 15 |
| 24°F | Mar 1 | Mar 19 | Apr 6 |
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 | Oct 3 | Oct 18 | Oct 29 |
| 32°F | Oct 15 | Oct 28 | Nov 9 |
| 28°F | Oct 23 | Nov 5 | Nov 23 |
| 24°F | Nov 1 | Nov 15 | Dec 5 |
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 | 152 days | 173 days | 193 days |
| 32°F | 173 days | 196 days | 218 days |
| 28°F | 196 days | 218 days | 243 days |
| 24°F | 216 days | 241 days | 267 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 |
|---|---|---|---|
| 65711 | 7a | 0 to 5°F | 3 km |
| 65689 | 7a | 0 to 5°F | 15 km |
| 65660 | 6b | -5 to 0°F | 19 km |
| 65484 | 6b | -5 to 0°F | 23 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 USC00235834, at 37.1542, -92.2619, elevation 447 m (1,466 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 103.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Mansfield (29 km)
- Houston (32 km)
- Gentryville (33 km)
- Grovespring 1ne (41 km)
- Wasola 5n (44 km)
- West Plains Muni Airport (44 km)
- Dora 3se (46 km)
- Ava 6nw (47 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.