Last spring frost
Mar 29
Frost Dates for Denton, NC
First fall frost
Nov 4
Growing season
220 days
Hardiness zone
8a
In an average year around Denton, NC, the last spring frost (32°F) is about Mar 29 and the first fall frost is about Nov 4, giving roughly a 220-day growing season. To be safe most years, wait until Mar 11 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 27 | Apr 11 | Mar 27 |
| Freeze (32°F) | Apr 14 | Mar 29 | Mar 11 |
| Hard (28°F) | Apr 2 | Mar 16 | Feb 24 |
| Severe (24°F) | Mar 23 | Mar 1 | Feb 6 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 27 | Apr 21 | Apr 17 | Apr 14 | Apr 11 | Apr 7 | Apr 3 | Mar 31 | Mar 27 |
| 32°F | Apr 14 | Apr 8 | Apr 4 | Apr 1 | Mar 29 | Mar 26 | Mar 22 | Mar 18 | Mar 11 |
| 28°F | Apr 2 | Mar 28 | Mar 24 | Mar 20 | Mar 16 | Mar 12 | Mar 7 | Mar 2 | Feb 24 |
| 24°F | Mar 23 | Mar 16 | Mar 10 | Mar 6 | Mar 1 | Feb 26 | Feb 22 | Feb 14 | Feb 6 |
| 20°F | Mar 9 | Mar 1 | Feb 25 | Feb 18 | Feb 12 | Feb 6 | Jan 31 | Jan 27 | Jan 16 |
| 16°F | Feb 24 | Feb 14 | Feb 7 | Feb 2 | Jan 30 | Jan 27 | Jan 21 | Jan 13 | Jan 1 |
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 14 | Oct 27 | Nov 7 |
| Freeze (32°F) | Oct 24 | Nov 4 | Nov 20 |
| Hard (28°F) | Nov 1 | Nov 16 | Dec 7 |
| Severe (24°F) | Nov 11 | Dec 1 | Jan 1 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 14 | Oct 18 | Oct 22 | Oct 24 | Oct 27 | Oct 29 | Nov 1 | Nov 3 | Nov 7 |
| 32°F | Oct 24 | Oct 28 | Oct 31 | Nov 1 | Nov 4 | Nov 6 | Nov 9 | Nov 14 | Nov 20 |
| 28°F | Nov 1 | Nov 5 | Nov 8 | Nov 12 | Nov 16 | Nov 20 | Nov 25 | Dec 1 | Dec 7 |
| 24°F | Nov 11 | Nov 16 | Nov 21 | Nov 27 | Dec 1 | Dec 5 | Dec 11 | Dec 21 | Jan 1 |
| 20°F | Nov 25 | Dec 2 | Dec 7 | Dec 15 | Dec 23 | Dec 29 | Jan 3 | Jan 10 | Jan 19 |
| 16°F | Dec 9 | Dec 19 | Dec 27 | Jan 2 | Jan 7 | Jan 12 | Jan 18 | Jan 25 | 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: Albemarle, Nc, about 15.2 miles away@if(!empty($station['elevation_ft'])), at 610 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 Denton, NC?
On average, the last spring frost (32°F) around Denton, NC is about Mar 29. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 11.
When is the first frost in the fall?
The first fall frost around Denton, NC typically arrives about Nov 4. 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 29 on average, or Mar 11 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 220 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 27239 Planting calendar → North Carolina frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026