Garden Climate for San Diego, CA 92119

Zone 10b · Last frost ~Jan 6 · Soil 67.8°F today (modeled) · See your place on the 2023 USDA zone map

This ZIP is part of El Cajon, La Mesa, Lakeside area, where nearby ZIPs share the same stations and zone. That page compares every ZIP in the area.

Public NOAA/USDA data, updated 2026-10-16 19:24 UTC.

USDA Plant Hardiness Zone Map · San Diego focus

2023 USDA Plant Hardiness Zone Map around ZIP 92119, marker at San Diego, CA
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USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture. Accessed from https://planthardiness.ars.usda.gov/. Rendered unaltered from the PRISM Group, Oregon State University GIS data (https://prism.oregonstate.edu, accessed 15 Oct 2026) with official zone colors. Roads (TIGER/Line 2023 primary roads), place names (2023 Gazetteer) and state lines (2023 cartographic boundaries 1:500k) are drawn on top. Source: U.S. Census Bureau.

Zone
10b
USDA 2023 · 35 to 40°F
Last frost
Jan 6
avg last frost (50%)
Soil temp Modeled
67.8°F
↓ 8.2° in 7 days
Chill hours
—
starts Nov 1
Rain
1.31″
since Oct 1 · normal 0.19″

Frost dates for 92119

Last spring frost
Jan 6
50% odds
First fall frost
Dec 21
50% odds
Safer spring date
Feb 7
10% chance of later frost
Growing season
350
days (50%)

Earliest-risk fall date (10%): Dec 1.

NOAA NCEI U.S. Climate Normals 1991-2020, annual/seasonal freeze probabilities (32F) · CA EL CAJON (USC00042706) 9.2 km away 27 yrs of record · 164 ft lower than this ZIP

Newsletter · 92119

Frost alerts and planting reminders for 92119. Coming soon.

Ad strip · leaderboard 970×90 / 728×90

7-day forecast · High / Low / Rain / Frost / Wind

Fri 16
92° 70° gust 36 mph 💧6%
Clear
Sat 17
89° 63° gust 23 mph 💧6%
Clear
Sun 18
87° 63° gust 17 mph 💧1%
Clear
Mon 19
83° 61° gust 17 mph 💧9%
Clear
Tue 20
73° 58° gust 26 mph 💧68% · 0.04″
Rain
Wed 21
70° 56° gust 24 mph 💧68% · 0.46″
Rain
Thu 22
68° 55° gust 18 mph 💧31% · 0.11″
Clear

NOAA NWS api.weather.gov (SGX). Frost = low ≤32°F · High wind = gust ≥40 mph · 💧 = chance of precipitation and expected amount (NWS quantitative precipitation forecast; blank when NWS gives none) · Rain = chance ≥50%.

What to grow when · 92119

Calendar: San Diego County, inland valleys (guide Regions 3-4). Planting months from UC Master Gardeners of San Diego County; Master Gardener Association of San Diego County. Harvest months add typical days-to-harvest. This month also checks live soil temperature and the 7-day frost forecast. The harvest planner uses the same calendar. Rules: methodology.

Affiliate links (disclosed). Placeholders, no partners yet:Frost clothSoil thermometer

Questions about 92119

What USDA hardiness zone is 92119?

ZIP 92119 (San Diego, CA) is in USDA zone 10b (35 to 40°F average annual extreme minimum), per the 2023 USDA Plant Hardiness Zone Map.

When is the last frost in 92119?

Based on NOAA 1991–2020 normals at Ca El Cajon (9.2 km away), the median last 32°F freeze is Jan 6. In 1 of 10 years it is after Feb 7. The median first fall freeze is Dec 21.

Nearby ZIP codes

91942 La Mesa 92120 San Diego 92071 Santee 92124 San Diego 92182 San Diego 92020 El Cajon

Sources for this page

  • Location: US Census Bureau 2023 Gazetteer, ZCTA internal point
  • Zone: USDA Plant Hardiness Zone Map 2023, ZIP datasets (USDA ARS + PRISM Climate Group, Oregon State University)
  • Frost: NOAA NCEI U.S. Climate Normals 1991-2020, annual/seasonal freeze probabilities (32F) CA EL CAJON (USC00042706) 9.2 km away 27 yrs of record · 164 ft lower than this ZIP
  • Forecast: NOAA National Weather Service api.weather.gov (7-day forecast + gridpoint wind gusts)
  • Soil: Open-Meteo forecast API soil model (non-commercial terms)
  • Chill: Iowa Environmental Mesonet ASOS archive (NWS/FAA METAR routine + special obs; one value per clock hour)
  • Raw data: /data/zip/92119.json