ZIP 72116 Zone 8a

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

Nearest qualified station: LITTLE ROCK, AR US (USW00003952), 2.7 miles from the Census ZCTA internal point for this ZIP.

Median last 32°F is March 16. Median first 32°F is November 16. The 50% growing-season length is 245 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%February 27Earlier date. A last 32°F on or after this day is common.
50%March 16Median.
10%April 2Later 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 16Median.
90%December 2Later 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%269
50%245
90%221

28°F threshold

10%50%90%
Last, on or afterMarch 21March 4February 16
First, on or beforeNovember 10November 27December 17
Season at least296 days268 days241 days

36°F threshold

10%50%90%
Last, on or afterApril 16March 28March 10
First, on or beforeOctober 23November 6November 21
Season at least246 days222 days200 days

Station LITTLE ROCK, AR US (USW00003952). Completeness flag S, 25 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 173.1 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