ZIP 30501 Zone 8a

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

Nearest qualified station: GAINESVILLE, GA US (USC00093621), 2.9 miles from the Census ZCTA internal point for this ZIP.

Median last 32°F is March 27. Median first 32°F is November 12. 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 6Earlier date. A last 32°F on or after this day is common.
50%March 27Median.
10%April 11Later 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 31Earlier date. A first 32°F on or before this day is uncommon.
50%November 12Median.
90%December 1Later 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%257
50%231
90%209

28°F threshold

10%50%90%
Last, on or afterMarch 31March 12February 19
First, on or beforeNovember 7November 26December 20
Season at least291 days260 days233 days

36°F threshold

10%50%90%
Last, on or afterApril 23April 7March 22
First, on or beforeOctober 20November 1November 14
Season at least228 days207 days187 days

Station GAINESVILLE, GA US (USC00093621). Completeness flag S, 27 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 356.6 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