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

Planting zone for 93042 — Point Mugu Nawc, CA

ZIP code 93042 (Point Mugu Nawc, Ventura County) is in USDA zone 10b: the coldest winter night averages 35 to 40 °F.

Where ZIP 93042 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.

Zone10b35 to 40 °F
Coldest night1.7 to 4.4 °C
Last frostrare
First frostrare
2012 zone10a

Was 10a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 10b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Point Mugu Nawc, 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 Point Mugu Nf, CA — 63 miles away, elevation 13 ft) the median growing season is 365 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 93042 came on Jan 17 — 5 days earlier than the 1991–2020 average (Jan 22).

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 Point Mugu Nawc, CA

The soil mapped at the center of ZIP 93042 is Vizcapoint — sandy loam, well drained.

TextureSandy loamdrains and warms fast; dries out and needs more feeding
pH6.8neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.5%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Vizcapoint-Nicolas hummocky, complex, 2 to 9 percent slopes.

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 93042; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Point Mugu Nawc, CA

Summer high74 °Faverage high, August
Winter low44 °Faverage low, December
Hot days2days a year at 90 °F or more
Freezing nights1nights a year at 32 °F or less
Growing degree days3,754base 50 °F — the season’s usable heat
Longest day14 h 21 mindaylight on June 21
Shortest day9 h 57 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Average high and low, by month

30°40°50°60°70°80°32 °FJanuary: average high 66 °F, low 46 °F 66°46° JanFebruary: average high 65 °F, low 46 °F 65°46° FebMarch: average high 66 °F, low 48 °F 66°48° MarApril: average high 67 °F, low 48 °F 67°48° AprMay: average high 68 °F, low 52 °F 68°52° MayJune: average high 70 °F, low 56 °F 70°56° JunJuly: average high 73 °F, low 58 °F 73°58° JulAugust: average high 74 °F, low 58 °F 74°58° AugSeptember: average high 73 °F, low 57 °F 73°57° SepOctober: average high 73 °F, low 54 °F 73°54° OctNovember: average high 71 °F, low 48 °F 71°48° NovDecember: average high 66 °F, low 44 °F 66°44° Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Point Mugu Nf, CA (63 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.

California planting zones →

Questions about 93042

What planting zone is ZIP code 93042?

ZIP code 93042 (Point Mugu Nawc, CA) is in USDA hardiness zone 10b on the 2023 map: the coldest night of an average winter reaches 35 to 40 °F (1.7 to 4.4 °C).

How hot do summers get in Point Mugu Nawc, CA?

The average high peaks at 74 °F in August, with about 2 days a year at 90 °F or more.

What kind of soil does 93042 have?

The USDA soil survey maps Vizcapoint at the center of ZIP 93042: sandy loam, well drained, pH about 6.8 (neutral).

Did spring come early in Point Mugu Nawc, CA in 2026?

Spring leaf-out near 93042 came on Jan 17 in 2026, 5 days earlier than the 1991–2020 average (Jan 22), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Point Mugu Nawc, CA?

Intermediate onions: the longest day near 93042 is 14 h 21 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 93042 change?

Yes. The 2012 USDA map put 93042 in zone 10a; the 2023 map puts it in zone 10b. The newer map uses 1991–2020 data and more weather stations.