Last spring frost
Mar 11
Frost Dates for Magnolia, MS
First fall frost
Nov 18
Growing season
253 days
Hardiness zone
8b
In an average year around Magnolia, MS, the last spring frost (32°F) is about Mar 11 and the first fall frost is about Nov 18, giving roughly a 253-day growing season. To be safe most years, wait until Feb 17 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 17 | Mar 28 | Mar 8 |
| Freeze (32°F) | Apr 2 | Mar 11 | Feb 17 |
| Hard (28°F) | Mar 18 | Feb 25 | Jan 27 |
| Severe (24°F) | Mar 5 | Feb 4 | Jan 1 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 17 | Apr 9 | Apr 5 | Apr 1 | Mar 28 | Mar 24 | Mar 19 | Mar 14 | Mar 8 |
| 32°F | Apr 2 | Mar 26 | Mar 20 | Mar 15 | Mar 11 | Mar 8 | Mar 2 | Feb 25 | Feb 17 |
| 28°F | Mar 18 | Mar 11 | Mar 6 | Mar 1 | Feb 25 | Feb 19 | Feb 13 | Feb 5 | Jan 27 |
| 24°F | Mar 5 | Feb 26 | Feb 19 | Feb 11 | Feb 4 | Jan 31 | Jan 25 | Jan 16 | Jan 1 |
| 20°F | Feb 19 | Feb 9 | Feb 2 | Jan 28 | Jan 22 | Jan 16 | Jan 10 | Jan 3 | Dec 25 |
| 16°F | Feb 9 | Feb 1 | Jan 27 | Jan 21 | Jan 15 | Jan 10 | Jan 5 | Dec 31 | Dec 22 |
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 24 | Nov 7 | Nov 25 |
| Freeze (32°F) | Nov 1 | Nov 18 | Dec 7 |
| Hard (28°F) | Nov 9 | Dec 1 | Jan 1 |
| Severe (24°F) | Nov 25 | Dec 23 | Jan 27 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 24 | Oct 30 | Nov 1 | Nov 5 | Nov 7 | Nov 11 | Nov 14 | Nov 19 | Nov 25 |
| 32°F | Nov 1 | Nov 6 | Nov 11 | Nov 15 | Nov 18 | Nov 22 | Nov 26 | Dec 1 | Dec 7 |
| 28°F | Nov 9 | Nov 17 | Nov 22 | Nov 28 | Dec 1 | Dec 5 | Dec 11 | Dec 20 | Jan 1 |
| 24°F | Nov 25 | Dec 2 | Dec 8 | Dec 15 | Dec 23 | Dec 31 | Jan 4 | Jan 11 | Jan 27 |
| 20°F | Dec 9 | Dec 19 | Dec 27 | Jan 1 | Jan 5 | Jan 10 | Jan 16 | Jan 24 | Feb 2 |
| 16°F | Dec 18 | Dec 27 | Jan 1 | Jan 5 | Jan 9 | Jan 13 | Jan 17 | Jan 23 | Feb 2 |
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: Mccomb/Pike Co/John E Lewis Ap, Ms, about 5 miles away@if(!empty($station['elevation_ft'])), at 413 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 Magnolia, MS?
On average, the last spring frost (32°F) around Magnolia, MS is about Mar 11. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 17.
When is the first frost in the fall?
The first fall frost around Magnolia, 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 11 on average, or Feb 17 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 253 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 39652 Planting calendar → Mississippi frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026