Oxnard Ventura County, CA Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Oxnard Ventura County's primary NOAA station, OXNARD VENTURA CO AP.
The climate verdict for Oxnard Ventura County
Dryness leads the climate profile for Oxnard Ventura County, California, with 12.9 inches of precipitation a year. NOAA records an annual average of 61°F. August is the warmest month at 67°F and January the coldest at 56°F.
- 61°F
- average temperature, NOAA 1991-2020 normal
- 12.9"
- precipitation, annual total
Oxnard Ventura County: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00093110 · Oxnard Ventura County, CA 61°F mean · 12.9" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-DRY · SWING-NARROW · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 61°F
- RANK-UPPER #5,352
- PHOTO-FINISH ≈ Oxnard
- PRCP-DRY 12.9"
- SWING-NARROW 11°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 1,692 HDD
- STN-1 USW00093110
- BOOK-FULL 5/6 fields
Nearest mean-temperature peer: Oxnard, CA (+ 0.3 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every CA station list.
- Hot San Diego Seawo…, CA 62°F
- Near Oxnard, CA 62°F
- Oxnard Ventura… (this station) 61°F
- Cold Santa Monica Pi…, CA 61°F
- Near Oceanside Marina, CA 61°F
Climate Living Index · Oxnard Ventura County
Oxnard Ventura County: 74/100 · grade B
Oxnard Ventura County publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Oxnard Ventura County, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Annual temperature balance | 61.2°F · 6.3° from 67.5°F | 80/100 · B |
| Precipitation balance | 12.9 in · 22.1 from 35 in | 21/100 · F |
Oxnard Ventura County · 2026-08-04 · NOAA NCEI Climate Normals · method .
Oxnard Ventura County is a temperate Köppen climate: Csb
Coldest-month mean 56.0°F and warmest-month mean 67.1°F place this station in temperate, dry-summer, warm summer climates (Csb). Class Csb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, warm summer.
- Köppen code
- Csb
- Group
- Temperate
- Warmest month
- 67.1°F
- Coldest month
- 56.0°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Oxnard Ventura County sits across the climate record
Three NOAA fields for Oxnard Ventura County's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 22% warmest
- Among 6,861 stations, Oxnard Ventura County sits in the warmer third of annual means.
- Annual precipitation
- Drier than 88%
- Oxnard Ventura County's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 99%
- Warmest-to-coldest month gap for Oxnard Ventura County is compact versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 66°F (19°C) | 46°F (8°C) | 56°F (13°C) | 2.9" | 0.2 | 0.0 |
| February | 65°F (19°C) | 48°F (9°C) | 57°F (14°C) | 3.3" | 0.0 | 0.1 |
| March | 66°F (19°C) | 49°F (10°C) | 57°F (14°C) | 2.3" | 0.0 | 0.1 |
| April | 67°F (19°C) | 51°F (10°C) | 59°F (15°C) | 0.7" | 0.0 | 0.1 |
| May | 68°F (20°C) | 54°F (12°C) | 61°F (16°C) | 0.3" | 0.0 | 0.0 |
| June | 70°F (21°C) | 58°F (14°C) | 64°F (18°C) | 0.1" | 0.0 | 0.0 |
| July | 73°F (23°C) | 61°F (16°C) | 67°F (19°C) | 0.0" | 0.0 | 0.0 |
| August | 74°F (23°C) | 61°F (16°C) | 67°F (19°C) | 0.0" | 0.0 | 0.0 |
| September | 74°F (23°C) | 60°F (15°C) | 67°F (19°C) | 0.1" | 0.0 | 0.3 |
| October | 74°F (23°C) | 55°F (13°C) | 65°F (18°C) | 0.5" | 0.0 | 1.2 |
| November | 70°F (21°C) | 50°F (10°C) | 60°F (16°C) | 0.7" | 0.0 | 0.6 |
| December | 66°F (19°C) | 47°F (8°C) | 56°F (14°C) | 2.1" | 0.1 | 0.0 |
The year, day by day
The calendar barely moves in Oxnard Ventura County: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 46°F near January 5 and 74°F near October 8.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 46°F around January 5.
Where the wet dates fall
The likeliest wet date is February 20, when 23% of years recorded at least a hundredth of an inch. The driest is July 1 at 3%. Summed across the calendar, that is about 44 wet dates a year.
The widest day
November 7 carries the biggest normal gap between afternoon and dawn, 20°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Oxnard Ventura County.
Where Oxnard Ventura County Stands Nationally
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 20°F.
A drier-than-most normal water year — around 13 inches, below what four out of five ranked stations collect.
Oxnard Ventura County earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
5.9 days with precipitation
6.6 days with precipitation
5.6 days with precipitation
3.7 days with precipitation
2.3 days with precipitation
1.1 days with precipitation
0.8 days with precipitation
0.9 days with precipitation
2.3 days with precipitation
4.5 days with precipitation
4.6 days with precipitation
5.7 days with precipitation
Oxnard Ventura County's wet season runs through the cold months
December, January and February carry 64% of the year's precipitation here, while June through August contribute 1%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows an unusually narrow 11.1°F seasonal spread.
- Wettest month
- February, 3.3"
- Driest month
- August, 0.0"
- Wettest three months
- February, January, March (66% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
How Oxnard Ventura County's precipitation splits across the calendar
About 44 days a year record measurable precipitation here, carrying 12.9" between them, or roughly 0.29 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,692
Higher = more heating needed
Cooling Degree Days
324
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside CA closest to Oxnard Ventura County on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (61°F here).
- Camden, SC 61°F · 0.0°F off
- Camp Hill, AL 61°F · 0.0°F off
- Chickamauga, GA 61°F · 0.0°F off
- Dallas, GA 61°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (12.9" here), excluding temperature-peer places.
- Mountainair, NM 12.9" · 0.0" off
- Ennis, MT 12.9" · 0.0" off
- Jordan, MT 12.9" · 0.0" off
- Malta, MT 12.9" · 0.0" off
Scarce-water calendar
Where Oxnard Ventura County's limited precipitation lands
heating led · dry · low swing
Heating is the larger measured load in Oxnard Ventura County, at 1,692 degree days versus 324 for cooling. Unlike a strongly continental record, however, its 11.1°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
A frost-free growing-season length is not available for Oxnard Ventura County. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
The calendar stays thermally compact and dry. August and January mark the typical warm and cold ends of the calendar, only 11.1°F apart, while the annual precipitation total remains below PlainClimate's dry threshold. The annual average is 61°F. The monthly rows show whether that limited precipitation is spread through the year or concentrated in a shorter interval.
Oxnard Ventura County's cold-season load does not imply a wet climate. Annual precipitation is 12.9 inches, which places the station in PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
Oxnard Ventura County wettest normal
February
February concentrates the scarce annual total (12.9 inches).
Oxnard Ventura County driest normal
August
August is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Oxnard Ventura County's climate
How dry is Oxnard Ventura County? ▼
How much energy does heating and cooling require in Oxnard Ventura County? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Oxnard Ventura County's primary station: OXNARD VENTURA CO AP (USW00093110). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Oxnard Ventura County; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Oxnard Ventura County comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.