Garden Climate for Valley Center, CA 92082

Zone 9b · Last frost ~Jan 2 · Soil 72.1°F today (measured) · See your place on the 2023 USDA zone map

Public NOAA/USDA data, updated 2026-10-16 18:57 UTC.

USDA Plant Hardiness Zone Map · Valley Center focus

2023 USDA Plant Hardiness Zone Map around ZIP 92082, marker at Valley Center, 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
9b
USDA 2023 · 25 to 30°F
Last frost
Jan 2
avg last frost (50%)
Soil temp Measured
72.1°F
↓ 14.7° in 7 days
Chill hours
—
starts Nov 1
Rain
—
since Oct 1 · not enough data

Frost dates for 92082

Last spring frost
Jan 2
50% odds
First fall frost
Dec 30
50% odds
Safer spring date
Feb 4
10% chance of later frost
Growing season
365
days (50%)

Earliest-risk fall date (10%): Dec 8.

Station record: 19 of the 30 years in 1991–2020, which NOAA still uses for freeze dates. A full record would be more reliable.

NOAA NCEI U.S. Climate Normals 1991-2020, annual/seasonal freeze probabilities (32F) · CA ESCONDIDO #2 (USC00042863) 16.0 km away 19 yrs of record · 968 ft lower than this ZIP

Newsletter · 92082

Frost alerts and planting reminders for 92082. Coming soon.

Ad strip · leaderboard 970×90 / 728×90

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

High wind: 2 day(s) with gusts ≥40 mph. Stake and protect transplants.
Fri 16
87° 70° gust 58 mph 💧2%
High wind
Sat 17
84° 62° gust 41 mph 💧3%
High wind
Sun 18
85° 62° gust 16 mph 💧1%
Clear
Mon 19
82° 58° gust 12 mph 💧8%
Clear
Tue 20
72° 55° gust 18 mph 💧62% · 0.04″
Rain
Wed 21
67° 52° gust 18 mph 💧70% · 0.63″
Rain
Thu 22
67° 51° gust 14 mph 💧33% · 0.10″
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 · 92082

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 92082

What USDA hardiness zone is 92082?

ZIP 92082 (Valley Center, CA) is in USDA zone 9b (25 to 30°F average annual extreme minimum), per the 2023 USDA Plant Hardiness Zone Map.

When is the last frost in 92082?

Based on NOAA 1991–2020 normals at Ca Escondido #2 (16.0 km away), the median last 32°F freeze is Jan 2. In 1 of 10 years it is after Feb 4. The median first fall freeze is Dec 30.

Nearby ZIP codes

92061 Pauma Valley 92026 Escondido 92027 Escondido 92059 Pala 92069 San Marcos 92060 Palomar Mountain

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 ESCONDIDO #2 (USC00042863) 16.0 km away 19 yrs of record · 968 ft lower than this ZIP
  • Forecast: NOAA National Weather Service api.weather.gov (7-day forecast + gridpoint wind gusts)
  • Soil: NOAA U.S. Climate Reference Network (USCRN) hourly02, SOIL_TEMP_10
  • Chill: CIMIS, California Department of Water Resources (hourly air temperature; QC-flagged hours dropped)
  • Raw data: /data/zip/92082.json