Planting zone for 93041 — Port Hueneme, CA
ZIP code 93041 (Port Hueneme, Ventura County) is in USDA zone 10b: the coldest winter night averages 35 to 40 °F.
Where ZIP 93041 is
Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoomNot 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.
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 ServiceLoading the forecast for Port Hueneme, 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 — 5 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 93041 came on Jan 17 — 5 days earlier than the 1991–2020 average (Jan 22).
Jan 222026
Jan 17
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 Port Hueneme, CA
The soil mapped at the center of ZIP 93041 is Hueneme — sandy loam, somewhat poorly drained.
Map unit: Hueneme sandy loam, loamy substratum, 0 to 2 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 93041; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.
Climate in Port Hueneme, CA
Average high and low, by month
Precipitation by month inches
NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Oxnard, CA (2 mi away); precipitation: Oxnard Ventura Co. Airport, CA (3 mi away). Daylight is calculated from latitude.
Nearby ZIP codes
2 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.
All 2 ZIP codes in Port Hueneme → · California planting zones →
Questions about 93041
What planting zone is ZIP code 93041?
ZIP code 93041 (Port Hueneme, 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 much rain and snow does 93041 get?
About 12.9 inches of precipitation a year (NOAA 1991–2020 normals, Oxnard Ventura Co. Airport station).
How hot do summers get in Port Hueneme, CA?
The average high peaks at 76 °F in September, with about 2 days a year at 90 °F or more.
What kind of soil does 93041 have?
The USDA soil survey maps Hueneme at the center of ZIP 93041: sandy loam, somewhat poorly drained, pH about 7.5 (slightly alkaline).
Did spring come early in Port Hueneme, CA in 2026?
Spring leaf-out near 93041 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 Port Hueneme, CA?
Intermediate onions: the longest day near 93041 is 14 h 26 min, so day-neutral types bulb best; long-day varieties may not bulb fully.
Did the zone for 93041 change?
Yes. The 2012 USDA map put 93041 in zone 10a; the 2023 map puts it in zone 10b. The newer map uses 1991–2020 data and more weather stations.