Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 92887 — Yorba Linda, CA

ZIP code 92887 (Yorba Linda, Orange County) is in USDA zone 10a: the coldest winter night averages 30 to 35 °F.

Where ZIP 92887 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone10a30 to 35 °F
Coldest night−1.1 to 1.7 °C
Last frostrare
First frostrare
2012 zone10a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 10a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Yorba Linda, CA…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates

A 32 °F frost doesn't happen here in most winters. At the nearest station (NOAA station Chino Airport, CA — 8 miles away, elevation 650 ft) the median growing season is 335 days. When frost does come, it is a midwinter night or two; cover tender plants when a freeze is forecast.

Frost data: NOAA NCEI U.S. Climate Normals 1991–2020.

When spring arrived in 2026

In 2026, spring leaf-out near 92887 came on Jan 16 — 5 days earlier than the 1991–2020 average (Jan 21).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Yorba Linda, CA

The soil mapped at the center of ZIP 92887 is Calleguas — clay loam, well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up
pH8.2alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Calleguas clay loam, 50 to 75 percent slopes, eroded.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 92887; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Yorba Linda, CA

Summer high89 °Faverage high, August
Winter low48 °Faverage low, December
Hot days47days a year at 90 °F or more
Freezing nights0nights a year at 32 °F or less
Growing degree days6,498base 50 °F — the season’s usable heat
Longest day14 h 25 mindaylight on June 21
Shortest day9 h 54 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation14.2 inper year, rain and melted snow

Average high and low, by month

40°50°60°70°80°90°100°January: average high 71 °F, low 49 °F 71°49° JanFebruary: average high 71 °F, low 49 °F 71°49° FebMarch: average high 74 °F, low 51 °F 74°51° MarApril: average high 77 °F, low 54 °F 77°54° AprMay: average high 78 °F, low 58 °F 78°58° MayJune: average high 82 °F, low 62 °F 82°62° JunJuly: average high 87 °F, low 66 °F 87°66° JulAugust: average high 89 °F, low 66 °F 89°66° AugSeptember: average high 88 °F, low 64 °F 88°64° SepOctober: average high 83 °F, low 59 °F 83°59° OctNovember: average high 77 °F, low 53 °F 77°53° NovDecember: average high 71 °F, low 48 °F 71°48° Dec

Precipitation by month inches

0″1″2″3″4″January: 3.21 in precipitation 3.2 JanFebruary: 3.74 in precipitation 3.7 FebMarch: 2.08 in precipitation 2.1 MarApril: 0.66 in precipitation 0.7 AprMay: 0.30 in precipitation 0.3 MayJune: 0.08 in precipitation 0.1 JunJuly: 0.06 in precipitation 0.1 JulAugust: 0.01 in precipitation 0.0 AugSeptember: 0.11 in precipitation 0.1 SepOctober: 0.59 in precipitation 0.6 OctNovember: 1.00 in precipitation 1.0 NovDecember: 2.36 in precipitation 2.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Anaheim, CA (6 mi away); precipitation: Anaheim 7.3 E, CA (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

1 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

9280810a
Anaheim, CA · 2 mi
9288610a
Yorba Linda, CA · 4 mi
9170910a
Chino Hills, CA · 4 mi
9280710a
Anaheim, CA · 4 mi
9281710a
Anaheim, CA · 4 mi
9282310a
Brea, CA · 5 mi
9288510a
Yorba Linda, CA · 5 mi
9281110b
Atwood, CA · 6 mi

All 3 ZIP codes in Yorba Linda → · California planting zones →

Questions about 92887

What planting zone is ZIP code 92887?

ZIP code 92887 (Yorba Linda, CA) is in USDA hardiness zone 10a on the 2023 map: the coldest night of an average winter reaches 30 to 35 °F (−1.1 to 1.7 °C).

How much rain and snow does 92887 get?

About 14.2 inches of precipitation a year (NOAA 1991–2020 normals, Anaheim 7.3 E station).

How hot do summers get in Yorba Linda, CA?

The average high peaks at 89 °F in August, with about 47 days a year at 90 °F or more.

What kind of soil does 92887 have?

The USDA soil survey maps Calleguas at the center of ZIP 92887: clay loam, well drained, pH about 8.2 (alkaline).

Did spring come early in Yorba Linda, CA in 2026?

Spring leaf-out near 92887 came on Jan 16 in 2026, 5 days earlier than the 1991–2020 average (Jan 21), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Yorba Linda, CA?

Intermediate onions: the longest day near 92887 is 14 h 25 min, so day-neutral types bulb best; long-day varieties may not bulb fully.