Frost dates for Monticello, MS
At Monticello, the median last spring frost (32°F) is Mar 12 and the median first fall frost is Nov 10, for a typical growing season of 242 days. For a 90% chance that the last frost has passed, wait until Apr 3. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 12Last spring frost (median)50% chance of 32°F after this date
- Apr 3Safer planting date10% chance of 32°F after this date
- Nov 10First fall frost (median)50% chance of 32°F by this date
- 242 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 | Mar 6 | Mar 27 | Apr 15 |
| 32°F | Feb 22 | Mar 12 | Apr 3 |
| 28°F | Jan 30 | Feb 27 | Mar 17 |
| 24°F | Jan 6 | Feb 6 | Mar 5 |
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 16 | Nov 1 | Nov 18 |
| 32°F | Oct 23 | Nov 10 | Dec 3 |
| 28°F | Oct 31 | Nov 22 | Dec 25 |
| 24°F | Nov 9 | Dec 12 | Jan 16 |
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 | 194 days | 217 days | 245 days |
| 32°F | 212 days | 242 days | 270 days |
| 28°F | 241 days | 272 days | 307 days |
| 24°F | 270 days | 309 days | 349 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 97% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 39654 | 8b | 15 to 20°F | 4 km |
| 39663 | 8b | 15 to 20°F | 8 km |
| 39665 | 8b | 15 to 20°F | 14 km |
| 39656 | 8b | 15 to 20°F | 20 km |
| 39641 | 8b | 15 to 20°F | 23 km |
| 39140 | 8b | 15 to 20°F | 23 km |
| 39474 | 8b | 15 to 20°F | 25 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 USC00225987, at 31.5519, -90.1058, elevation 58 m (191 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 45.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Brookhaven City (33 km)
- Columbia (42 km)
- Hazlehurst 5 SW (45 km)
- D'lo 2 SW (48 km)
- Crystal Springs Exp. Station (51 km)
- Tylertown 5ese (53 km)
- Collins (53 km)
- McComb/pike Co/john E Lewis Airport (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.