ZIP 30314 Zone 8a

Georgia · USDA zone 8a, average annual extreme minimum 10°F to 15°F.

Nearest qualified station: ATLANTA FULTON CO AP, GA US (USW00003888), 5.3 miles from the Census ZCTA internal point for this ZIP.

Median last 32°F is March 24. Median first 32°F is November 8. The 50% growing-season length is 231 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

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.

ProbabilityDateHow to read it
90%March 2Earlier date. A last 32°F on or after this day is common.
50%March 24Median.
10%April 10Later 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.

ProbabilityDateHow to read it
10%October 27Earlier date. A first 32°F on or before this day is uncommon.
50%November 8Median.
90%November 26Later 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 longDays
10%258
50%231
90%207

28°F threshold

10%50%90%
Last, on or afterMarch 27March 9February 15
First, on or beforeNovember 4November 20December 14
Season at least290 days259 days231 days

36°F threshold

10%50%90%
Last, on or afterApril 22April 7March 21
First, on or beforeOctober 17October 29November 11
Season at least228 days206 days186 days

Station ATLANTA FULTON CO AP, GA US (USW00003888). Completeness flag R, 22 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 256 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Methodology · Georgia cities