ZIP 95776 Zone 9b

California · USDA zone 9b, average annual extreme minimum 25°F to 30°F.

Nearest qualified station: WOODLAND 1 WNW, CA US (USC00049781), 5.2 miles from the Census ZCTA internal point for this ZIP.

Median last 32°F is February 7. Median first 32°F is December 5. The 50% growing-season length is 301 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%January 9Earlier date. A last 32°F on or after this day is common.
50%February 7Median.
10%March 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%November 19Earlier date. A first 32°F on or before this day is uncommon.
50%December 5Median.
90%January 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%336
50%301
90%260

28°F threshold

10%50%90%
Last, on or afterFebruary 2January 10December 14
First, on or beforeDecember 1December 18January 16
Season at least365 days347 days320 days

36°F threshold

10%50%90%
Last, on or afterApril 12March 15February 15
First, on or beforeNovember 4November 20December 5
Season at least280 days246 days215 days

Station WOODLAND 1 WNW, CA US (USC00049781). 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 97.9%. Freeze dates are conditional on that threshold occurring. Elevation 20.4 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Methodology · California cities