ZIP 02780 Zone 6b

Massachusetts · USDA zone 6b, average annual extreme minimum -5°F to 0°F.

Nearest qualified station: TAUNTON, MA US (USC00198367), 2.8 miles from the Census ZCTA internal point for this ZIP.

Median last 32°F is April 22. Median first 32°F is October 19. The 50% growing-season length is 179 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%April 10Earlier date. A last 32°F on or after this day is common.
50%April 22Median.
10%May 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 4Earlier date. A first 32°F on or before this day is uncommon.
50%October 19Median.
90%November 4Later 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%200
50%179
90%160

28°F threshold

10%50%90%
Last, on or afterApril 22April 8March 28
First, on or beforeOctober 16November 1November 16
Season at least225 days205 days183 days

36°F threshold

10%50%90%
Last, on or afterMay 18May 4April 23
First, on or beforeSeptember 27October 8October 24
Season at least177 days157 days138 days

Station TAUNTON, MA US (USC00198367). Completeness flag R, 17 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 6.1 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Methodology · Massachusetts cities