Last spring frost
Mar 22
Frost Dates for Canton, MS
First fall frost
Nov 6
Growing season
230 days
Hardiness zone
8b
In an average year around Canton, MS, the last spring frost (32°F) is about Mar 22 and the first fall frost is about Nov 6, giving roughly a 230-day growing season. To be safe most years, wait until Feb 28 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 21 | Apr 4 | Mar 16 |
| Freeze (32°F) | Apr 9 | Mar 22 | Feb 28 |
| Hard (28°F) | Mar 27 | Mar 7 | Feb 15 |
| Severe (24°F) | Mar 15 | Feb 23 | Jan 29 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 21 | Apr 15 | Apr 10 | Apr 7 | Apr 4 | Apr 1 | Mar 29 | Mar 24 | Mar 16 |
| 32°F | Apr 9 | Apr 3 | Mar 31 | Mar 27 | Mar 22 | Mar 17 | Mar 13 | Mar 7 | Feb 28 |
| 28°F | Mar 27 | Mar 20 | Mar 16 | Mar 11 | Mar 7 | Mar 3 | Feb 28 | Feb 23 | Feb 15 |
| 24°F | Mar 15 | Mar 9 | Mar 3 | Feb 28 | Feb 23 | Feb 17 | Feb 12 | Feb 5 | Jan 29 |
| 20°F | Mar 4 | Feb 25 | Feb 17 | Feb 10 | Feb 4 | Jan 31 | Jan 26 | Jan 17 | Jan 4 |
| 16°F | Feb 24 | Feb 9 | Feb 3 | Jan 30 | Jan 25 | Jan 18 | Jan 11 | Jan 5 | Dec 27 |
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 15 | Oct 28 | Nov 11 |
| Freeze (32°F) | Oct 23 | Nov 6 | Nov 25 |
| Hard (28°F) | Nov 1 | Nov 19 | Dec 9 |
| Severe (24°F) | Nov 10 | Dec 2 | Jan 2 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 15 | Oct 20 | Oct 22 | Oct 25 | Oct 28 | Oct 31 | Nov 2 | Nov 6 | Nov 11 |
| 32°F | Oct 23 | Oct 27 | Oct 31 | Nov 2 | Nov 6 | Nov 9 | Nov 13 | Nov 18 | Nov 25 |
| 28°F | Nov 1 | Nov 6 | Nov 11 | Nov 15 | Nov 19 | Nov 23 | Nov 29 | Dec 2 | Dec 9 |
| 24°F | Nov 10 | Nov 18 | Nov 24 | Nov 29 | Dec 2 | Dec 6 | Dec 12 | Dec 23 | Jan 2 |
| 20°F | Nov 23 | Dec 1 | Dec 8 | Dec 14 | Dec 24 | Dec 31 | Jan 3 | Jan 9 | Jan 20 |
| 16°F | Dec 5 | Dec 17 | Dec 28 | Jan 1 | Jan 5 | Jan 9 | Jan 15 | Jan 22 | 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: Canton 4N, Ms, about 3.8 miles away@if(!empty($station['elevation_ft'])), at 250 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 Canton, MS?
On average, the last spring frost (32°F) around Canton, MS is about Mar 22. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 28.
When is the first frost in the fall?
The first fall frost around Canton, MS typically arrives about Nov 6. 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 22 on average, or Feb 28 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 230 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 39046 Planting calendar → Mississippi frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026