Last spring frost
Mar 28
Frost Dates for Polkville, MS
First fall frost
Nov 3
Growing season
221 days
Hardiness zone
8b
In an average year around Polkville, MS, the last spring frost (32°F) is about Mar 28 and the first fall frost is about Nov 3, giving roughly a 221-day growing season. To be safe most years, wait until Mar 6 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 28 | Apr 10 | Mar 22 |
| Freeze (32°F) | Apr 15 | Mar 28 | Mar 6 |
| Hard (28°F) | Apr 3 | Mar 12 | Feb 18 |
| Severe (24°F) | Mar 19 | Feb 23 | Jan 28 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 28 | Apr 23 | Apr 17 | Apr 13 | Apr 10 | Apr 7 | Apr 3 | Mar 30 | Mar 22 |
| 32°F | Apr 15 | Apr 9 | Apr 5 | Apr 1 | Mar 28 | Mar 24 | Mar 19 | Mar 13 | Mar 6 |
| 28°F | Apr 3 | Mar 27 | Mar 22 | Mar 17 | Mar 12 | Mar 7 | Mar 2 | Feb 26 | Feb 18 |
| 24°F | Mar 19 | Mar 11 | Mar 5 | Feb 28 | Feb 23 | Feb 19 | Feb 13 | Feb 4 | Jan 28 |
| 20°F | Mar 5 | Feb 27 | Feb 18 | Feb 9 | Feb 3 | Jan 30 | Jan 25 | Jan 16 | Jan 3 |
| 16°F | Feb 22 | Feb 7 | Feb 1 | Jan 29 | Jan 24 | Jan 19 | Jan 13 | Jan 5 | Dec 29 |
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 12 | Oct 25 | Nov 9 |
| Freeze (32°F) | Oct 20 | Nov 3 | Nov 22 |
| Hard (28°F) | Oct 30 | Nov 15 | Dec 7 |
| Severe (24°F) | Nov 8 | Dec 1 | Jan 3 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 12 | Oct 16 | Oct 19 | Oct 22 | Oct 25 | Oct 28 | Nov 1 | Nov 4 | Nov 9 |
| 32°F | Oct 20 | Oct 24 | Oct 28 | Nov 1 | Nov 3 | Nov 6 | Nov 10 | Nov 15 | Nov 22 |
| 28°F | Oct 30 | Nov 3 | Nov 7 | Nov 11 | Nov 15 | Nov 19 | Nov 24 | Dec 1 | Dec 7 |
| 24°F | Nov 8 | Nov 15 | Nov 21 | Nov 26 | Dec 1 | Dec 5 | Dec 11 | Dec 22 | Jan 3 |
| 20°F | Nov 23 | Dec 2 | Dec 8 | Dec 15 | Dec 24 | Dec 31 | Jan 4 | Jan 11 | Jan 24 |
| 16°F | Dec 7 | Dec 20 | Dec 29 | Jan 1 | Jan 6 | Jan 12 | Jan 18 | Jan 26 | Feb 3 |
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: Raleigh 6N, Ms, about 4.8 miles away@if(!empty($station['elevation_ft'])), at 446 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 Polkville, MS?
On average, the last spring frost (32°F) around Polkville, MS is about Mar 28. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 6.
When is the first frost in the fall?
The first fall frost around Polkville, MS typically arrives about Nov 3. 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 28 on average, or Mar 6 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 221 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 39152 Planting calendar → Mississippi frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026