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Frost dates / California / Encinitas

Frost dates in Encinitas, CA

The station on this page is ESCONDIDO #2, CA US (USC00042863), 11.2 miles from the city point. Population in the Census 2024 estimate is 61,137.

Zone 10aUSDA average annual extreme minimum 30°F to 35°F, from ZIP 92024 (0.6 miles from the city point used on this page).

Median last 32°F is January 2. Median first 32°F is December 30. The 50% growing-season length is 365 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%December 14Earlier date. A last 32°F on or after this day is common.
50%January 2Median.
10%February 4Later 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%December 8Earlier date. A first 32°F on or before this day is uncommon.
50%December 30Median.
90%January 29Later 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%365
50%365
90%339

36°F threshold

10%50%90%
Last, on or afterMarch 1January 31December 29
First, on or beforeNovember 27December 18January 19
Season at least356 days324 days284 days

Station ESCONDIDO #2, CA US (USC00042863). Completeness flag R, 19 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 38.6%. Freeze dates are conditional on that threshold occurring. Elevation 182.9 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Planting calendar for Encinitas · Zone 10a

Check a crop against this station

Encinitas, CA

Zone 10aAverage annual extreme minimum 30°F to 35°F

Median last 32°F is January 2. Median first 32°F is December 30. The 50% growing-season length is 365 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%

California. Nearest qualified station: ESCONDIDO #2, CA US (USC00042863), 11.2 miles. Median last 32°F January 2. Median first 32°F December 30. The 50% growing-season length is 365 days.

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32°F probabilities at this station
10%50%90%
Last 32°F on or afterFebruary 4January 2December 14
First 32°F on or beforeDecember 8December 30January 29

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Planting calendar

Windows below are from UC ANR, UC Master Gardener Program, Time of planting, retrieved 2026-10-10. North and North Coast = Monterey County north; South Coast = San Luis Obispo County south; Interior Valleys = Sacramento, San Joaquin, and similar valleys; Desert Valleys = Imperial and Coachella Valleys. Source line on the page: California Master Gardener Handbook, Table 13.2, Adapted from Vegetable Gardening Illustrated 1994.

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