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Quartz Hill, CA
Full City Profile · California · Los Angeles County County
3.1
/5.0
B
Good
10,968
Population
2,917/sq mi density
$104,017
Median Income
$43,194 per capita
$455,500
Home Value
$465,145 Zillow
$1,469
Median Rent
22.8% income on rent
62°F
Avg Temperature
330 sunny days/yr
556
Violent Crime/100K
2,285 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$104,017 median income, 3.8% unemployment
A
Affordability
4.2 / 5.0
$455,500 home value, $1,469/mo rent
F
Safety
1.0 / 5.0
556 violent crimes/100K (46% above avg)
C+
Education
2.5 / 5.0
19.3% bachelor's degree or higher
Quartz Hill enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 45°F in January while summers reach 82°F in July. The area gets 330 sunny days per year. Annual precipitation totals 6.8 inches. Air quality is rated Good with a median AQI of 48.
Temperature
45°F Jan (7°C)
82°F Jul (28°C)
| Annual Average | 62.1°F |
| 15% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 2,468 ft (752 m) |
| Area | 3.8 sq mi (9.7 km²) |
| Population Density | 2,917/sq mi |
| Coordinates | 34.6520°N, 118.2159°W |
| Timezone | America/Los_Angeles |
| County | Los Angeles County County |
| Nearest Airport | Bob Hope (BUR) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0482 ppm |
| NO₂ (Nitrogen Dioxide) | 17.4 ppb |
| SO₂ (Sulfur Dioxide) | 0.32 ppb |
| CO (Carbon Monoxide) | 0.32 ppm |
| PM2.5 (Fine Particles) | 10.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 100.0 / 100 |
| Social Vulnerability | 55.4 / 100 |
| Community Resilience | 13.6 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | No Rating |
| Earthquake | Very High |
| Wildfire | Very High |
| Flood | Very High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Moderate |
| Lightning | Very High |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Relatively High |
| Coastal Flood | Relatively High |
| Tsunami | Relatively Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
3 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 | 80 km |
| 1994 | WEST COAST, USA | Earthquake | 0.1 m | 57 | 57 km |
| 1855 | S. CALIFORNIA | Eruption + Earthquake | — | — | 62 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Golden Trout Creek (190 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Golden Trout Creek | Volcanic field | 2,886 m (9,469 ft) | -5550 | 190 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 2.5 in | Coldest |
| February | 48°F (9°C) | 2.7 in | Wettest |
| March | 50°F (10°C) | 2.2 in | |
| April | 55°F (13°C) | 0.8 in | |
| May | 63°F (17°C) | 0.3 in | |
| June | 71°F (22°C) | 0.1 in | Driest |
| July | 82°F (28°C) | 0.1 in | Warmest |
| August | 78°F (26°C) | 0.2 in | |
| September | 73°F (23°C) | 0.3 in | |
| October | 63°F (17°C) | 0.4 in | |
| November | 52°F (11°C) | 1.7 in | |
| December | 45°F (7°C) | 2.0 in |
Quartz Hill has a seasonal temperature swing of 37°F / from 45°F in January to 82°F in July. Total annual precipitation is 13.1 inches, with February being the wettest month (2.7") and June the driest (0.1").