Highgrove, CA
Full City Profile · California · Orange County County
4.0
/5.0
A
Great
7,164
Population
2,225/sq mi density
$109,657
Median Income
$40,390 per capita
$594,400
Home Value
$580,391 Zillow
$1,338
Median Rent
23.5% income on rent
63°F
Avg Temperature
A
Overall
4.0 / 5.0
Strong
A
Economy
4.3 / 5.0
$109,657 median income, 4.5% unemployment
B+
Affordability
3.6 / 5.0
$594,400 home value, $1,338/mo rent
A
Education
4.1 / 5.0
38.8% bachelor's degree or higher
Highgrove enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 52°F in January while summers reach 78°F in July. Annual precipitation totals 10.7 inches. The area receives 0.0 inches of snow annually. Air quality is rated Moderate with a median AQI of 54.
Temperature
52°F Jan (11°C)
78°F Jul (26°C)
| Annual Average | 63.3°F |
| 17% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 78°F (26°C) |
Geography
| Elevation | 1,153 ft (351 m) |
| Area | 3.2 sq mi (8.3 km²) |
| Population Density | 2,225/sq mi |
| Coordinates | 34.0106°N, 117.3098°W |
| Timezone | America/Los_Angeles |
| County | Orange County County |
| Nearest Airport | San Bernardino International (SBD) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 54.0 |
| Rating | Moderate |
| Good Days % | 32.5% |
| Unhealthy Days | 16 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0440 ppm |
| NO₂ (Nitrogen Dioxide) | 18.4 ppb |
| CO (Carbon Monoxide) | 0.35 ppm |
| PM2.5 (Fine Particles) | 9.7 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.8 / 100 |
| Social Vulnerability | 24.9 / 100 |
| Community Resilience | 16.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | No Rating |
| Earthquake | Very High |
| Wildfire | Relatively High |
| Flood | Very High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively High |
| Tsunami | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 3.1 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1930 | S. CALIFORNIA | Eruption + Earthquake | 3.1 m | 1 | 123 km |
| 1862 | S. CALIFORNIA | Eruption + Earthquake | 1.2 m | - | 146 km |
| 1994 | WEST COAST, USA | Earthquake | 0.1 m | 57 | 115 km |
| 1855 | S. CALIFORNIA | Eruption + Earthquake | - | - | 74 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Salton Buttes (181 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Salton Buttes | Lava dome(s) | -40 m (-131 ft) | 210 | 181 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 2.1 in | |
| February | 52°F (11°C) | 2.4 in | Wettest |
| March | 56°F (13°C) | 1.5 in | |
| April | 59°F (15°C) | 0.8 in | |
| May | 65°F (19°C) | 0.3 in | |
| June | 71°F (22°C) | 0.1 in | Driest |
| July | 78°F (26°C) | 0.1 in | |
| August | 78°F (26°C) | 0.4 in | Warmest |
| September | 75°F (24°C) | 0.2 in | |
| October | 66°F (19°C) | 0.5 in | |
| November | 57°F (14°C) | 0.7 in | |
| December | 51°F (11°C) | 1.8 in | Coldest |
Highgrove has a seasonal temperature swing of 27°F / from 51°F in December to 78°F in August. Total annual precipitation is 10.7 inches, with February being the wettest month (2.4") and June the driest (0.1").