ZIP 72204 Zone 8a

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

Nearest qualified station: LITTLE ROCK AP ADAMS FLD, AR US (USW00013963), 6.8 miles from the Census ZCTA internal point for this ZIP.

Median last 32°F is March 21. Median first 32°F is November 10. The 50% growing-season length is 234 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 21Median.
10%April 6Later 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 29Earlier date. A first 32°F on or before this day is uncommon.
50%November 10Median.
90%November 25Later 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%234
90%210

28°F threshold

10%50%90%
Last, on or afterMarch 26March 8February 20
First, on or beforeNovember 6November 21December 8
Season at least281 days256 days233 days

36°F threshold

10%50%90%
Last, on or afterApril 21April 3March 16
First, on or beforeOctober 20October 31November 14
Season at least234 days211 days190 days

Station LITTLE ROCK AP ADAMS FLD, AR US (USW00013963). Completeness flag S, 30 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 78.6 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Methodology · Arkansas cities