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Westhaven-Moonstone, CA
Full City Profile · California · Humboldt County County
2.8
/5.0
C+
Fair
1,374
Population
170/sq mi density
$63,843
Median Income
$42,485 per capita
$497,400
Home Value
$587,302 Zillow
$1,926
Median Rent
51.0% income on rent
51°F
Avg Temperature
282 sunny days/yr
439
Violent Crime/100K
3,955 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.1 / 5.0
$63,843 median income, 10.1% unemployment
C
Affordability
2.3 / 5.0
$497,400 home value, $1,926/mo rent
F
Safety
1.0 / 5.0
439 violent crimes/100K (16% above avg)
A+
Education
5.0 / 5.0
57.5% bachelor's degree or higher
Westhaven-Moonstone experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 44°F in January while summers reach 58°F in July. The area gets 282 sunny days per year. Air quality is rated Good with a median AQI of 48.
Temperature
44°F Jan (7°C)
58°F Jul (15°C)
| Annual Average | 50.9°F |
| 6% below US avg | |
| January Average | 44°F (7°C) |
| July Average | 58°F (15°C) |
| Sunny Days | 282 days/yr |
Geography
| Elevation | 599 ft (183 m) |
| Area | 8.1 sq mi (21.0 km²) |
| Population Density | 170/sq mi |
| Coordinates | 41.0361°N, 124.0908°W |
| Timezone | America/Los_Angeles |
| County | Humboldt County County |
| Nearest Airport | Redding Regional (RDD) 101 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0303 ppm |
| NO₂ (Nitrogen Dioxide) | 3.1 ppb |
| SO₂ (Sulfur Dioxide) | 0.31 ppb |
| CO (Carbon Monoxide) | 0.23 ppm |
| PM2.5 (Fine Particles) | 10.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.8 / 100 |
| Social Vulnerability | 74.7 / 100 |
| Community Resilience | 56.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively High |
| Tsunami | Relatively High |
| Volcano | No Rating |
| Avalanche | Very Low |
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 |
| 1873 | N. CALIFORNIA | Eruption + Earthquake | 3.1 m | — | 107 km |
| 1992 | CAPE MENDOCINO, N. CALIFORNIA | Earthquake | 1.8 m | — | 77 km |
| 2024 | CAPE MENDOCINO, N. CALIFORNIA | Earthquake | 0.1 m | — | 108 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Shasta (164 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Shasta | Stratovolcano | 4,317 m (14,163 ft) | 1250 | 164 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 9.0 in | Coldest |
| February | 47°F (8°C) | 7.7 in | |
| March | 48°F (9°C) | 7.8 in | |
| April | 50°F (10°C) | 4.2 in | |
| May | 53°F (12°C) | 2.2 in | |
| June | 56°F (13°C) | 0.9 in | |
| July | 58°F (15°C) | 0.2 in | Driest |
| August | 60°F (15°C) | 0.7 in | Warmest |
| September | 59°F (15°C) | 1.4 in | |
| October | 55°F (13°C) | 4.0 in | |
| November | 49°F (10°C) | 9.3 in | |
| December | 46°F (8°C) | 9.9 in | Wettest |
Westhaven-Moonstone has a seasonal temperature swing of 16°F / from 44°F in January to 60°F in August. Total annual precipitation is 57.4 inches, with December being the wettest month (9.9") and July the driest (0.2").