ZIP 30038 Zone 8a
Georgia · USDA zone 8a, average annual extreme minimum 10°F to 15°F.
Nearest qualified station: MCDONOUGH 5 ENE, GA US (USC00095666), 14.5 miles from the Census ZCTA internal point for this ZIP.
Outside the median season Growing seasonTicks: 10%, 50%, and 90%
Last 32°F in spring
NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.
| Probability | Date | How to read it |
|---|---|---|
| 90% | March 8 | Earlier date. A last 32°F on or after this day is common. |
| 50% | March 31 | Median. |
| 10% | April 16 | Later date. A last 32°F on or after this day is uncommon. |
First 32°F in fall
NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.
| Probability | Date | How to read it |
|---|---|---|
| 10% | October 24 | Earlier date. A first 32°F on or before this day is uncommon. |
| 50% | November 6 | Median. |
| 90% | November 24 | Later date. A first 32°F on or before this day is common. |
32°F growing-season length
Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.
| Probability the season is at least this long | Days |
|---|---|
| 10% | 245 |
| 50% | 220 |
| 90% | 198 |
28°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | April 4 | March 16 | February 20 |
| First, on or before | November 1 | November 17 | December 7 |
| Season at least | 276 days | 247 days | 220 days |
36°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | April 28 | April 11 | March 25 |
| First, on or before | October 16 | October 27 | November 10 |
| Season at least | 219 days | 199 days | 178 days |
Station MCDONOUGH 5 ENE, GA US (USC00095666). Completeness flag R, 12 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 215.8 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.