Last spring frost
Mar 14
Frost Dates for New Augusta, MS
First fall frost
Nov 18
Growing season
249 days
Hardiness zone
8b
In an average year around New Augusta, MS, the last spring frost (32°F) is about Mar 14 and the first fall frost is about Nov 18, giving roughly a 249-day growing season. To be safe most years, wait until Feb 21 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Apr 15 | Mar 29 | Mar 8 |
| Freeze (32°F) | Apr 2 | Mar 14 | Feb 21 |
| Hard (28°F) | Mar 20 | Feb 27 | Jan 30 |
| Severe (24°F) | Mar 13 | Feb 11 | Jan 10 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 15 | Apr 8 | Apr 4 | Apr 1 | Mar 29 | Mar 25 | Mar 20 | Mar 15 | Mar 8 |
| 32°F | Apr 2 | Mar 27 | Mar 23 | Mar 18 | Mar 14 | Mar 9 | Mar 4 | Feb 28 | Feb 21 |
| 28°F | Mar 20 | Mar 14 | Mar 8 | Mar 2 | Feb 27 | Feb 23 | Feb 18 | Feb 9 | Jan 30 |
| 24°F | Mar 13 | Mar 4 | Feb 26 | Feb 20 | Feb 11 | Feb 4 | Jan 31 | Jan 22 | Jan 10 |
| 20°F | Mar 1 | Feb 19 | Feb 9 | Feb 2 | Jan 29 | Jan 23 | Jan 15 | Jan 9 | Dec 31 |
| 16°F | Feb 11 | Feb 2 | Jan 31 | Jan 25 | Jan 20 | Jan 14 | Jan 9 | Jan 2 | Dec 28 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 23 | Nov 7 | Nov 24 |
| Freeze (32°F) | Nov 1 | Nov 18 | Dec 9 |
| Hard (28°F) | Nov 9 | Dec 3 | Jan 4 |
| Severe (24°F) | Nov 28 | Dec 29 | Jan 25 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 23 | Oct 29 | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 14 | Nov 18 | Nov 24 |
| 32°F | Nov 1 | Nov 5 | Nov 10 | Nov 15 | Nov 18 | Nov 22 | Nov 26 | Dec 1 | Dec 9 |
| 28°F | Nov 9 | Nov 18 | Nov 24 | Nov 30 | Dec 3 | Dec 8 | Dec 17 | Dec 28 | Jan 4 |
| 24°F | Nov 28 | Dec 5 | Dec 12 | Dec 21 | Dec 29 | Jan 1 | Jan 6 | Jan 12 | Jan 25 |
| 20°F | Dec 9 | Dec 21 | Dec 30 | Jan 2 | Jan 6 | Jan 10 | Jan 17 | Jan 27 | Feb 4 |
| 16°F | Dec 19 | Dec 29 | Jan 1 | Jan 8 | Jan 11 | Jan 15 | Jan 21 | Jan 30 | Feb 4 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Wiggins, Ms, about 14.1 miles away@if(!empty($station['elevation_ft'])), at 160 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in New Augusta, MS?
On average, the last spring frost (32°F) around New Augusta, MS is about Mar 14. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 21.
When is the first frost in the fall?
The first fall frost around New Augusta, MS typically arrives about Nov 18. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Mar 14 on average, or Feb 21 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 249 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 39425 Planting calendar → Mississippi frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026