Last spring frost
Mar 31
Frost Dates for Pangburn, AR
First fall frost
Nov 6
Growing season
222 days
Hardiness zone
8a
In an average year around Pangburn, AR, the last spring frost (32°F) is about Mar 31 and the first fall frost is about Nov 6, giving roughly a 222-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 28 | Apr 11 | Mar 28 |
| Freeze (32°F) | Apr 16 | Mar 31 | Mar 11 |
| Hard (28°F) | Apr 2 | Mar 16 | Feb 28 |
| Severe (24°F) | Mar 20 | Mar 3 | Feb 14 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 28 | Apr 22 | Apr 18 | Apr 14 | Apr 11 | Apr 8 | Apr 5 | Apr 2 | Mar 28 |
| 32°F | Apr 16 | Apr 9 | Apr 5 | Apr 2 | Mar 31 | Mar 27 | Mar 23 | Mar 18 | Mar 11 |
| 28°F | Apr 2 | Mar 29 | Mar 23 | Mar 19 | Mar 16 | Mar 12 | Mar 8 | Mar 3 | Feb 28 |
| 24°F | Mar 20 | Mar 15 | Mar 11 | Mar 7 | Mar 3 | Mar 1 | Feb 26 | Feb 21 | Feb 14 |
| 20°F | Mar 12 | Mar 5 | Mar 1 | Feb 26 | Feb 22 | Feb 17 | Feb 12 | Feb 5 | Jan 29 |
| 16°F | Mar 2 | Feb 23 | Feb 16 | Feb 10 | Feb 4 | Feb 1 | Jan 28 | Jan 20 | Jan 9 |
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 16 | Oct 28 | Nov 10 |
| Freeze (32°F) | Oct 26 | Nov 6 | Nov 24 |
| Hard (28°F) | Nov 3 | Nov 19 | Dec 6 |
| Severe (24°F) | Nov 12 | Nov 30 | Dec 24 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 16 | Oct 20 | Oct 23 | Oct 25 | Oct 28 | Oct 30 | Nov 1 | Nov 4 | Nov 10 |
| 32°F | Oct 26 | Oct 30 | Nov 1 | Nov 4 | Nov 6 | Nov 10 | Nov 14 | Nov 19 | Nov 24 |
| 28°F | Nov 3 | Nov 7 | Nov 11 | Nov 15 | Nov 19 | Nov 22 | Nov 26 | Dec 1 | Dec 6 |
| 24°F | Nov 12 | Nov 17 | Nov 22 | Nov 26 | Nov 30 | Dec 4 | Dec 8 | Dec 14 | Dec 24 |
| 20°F | Nov 23 | Nov 30 | Dec 5 | Dec 12 | Dec 18 | Dec 24 | Dec 29 | Jan 4 | Jan 12 |
| 16°F | Dec 3 | Dec 14 | Dec 23 | Dec 28 | Jan 1 | Jan 5 | Jan 9 | Jan 16 | Jan 28 |
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: Greers Ferry Dam, Ar, about 12.9 miles away@if(!empty($station['elevation_ft'])), at 527 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 Pangburn, AR?
On average, the last spring frost (32°F) around Pangburn, AR is about Mar 31. 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 Pangburn, AR 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 31 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 222 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 72121 Planting calendar → Arkansas frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026