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Interlaken, CA
Full City Profile · California · San Benito County County
2.8
/5.0
C+
Fair
8,191
Population
836/sq mi density
$111,021
Median Income
$36,003 per capita
$787,400
Home Value
$816,554 Zillow
$2,080
Median Rent
41.0% income on rent
58°F
Avg Temperature
323 sunny days/yr
502
Violent Crime/100K
2,821 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$111,021 median income, 2.8% unemployment
C+
Affordability
2.7 / 5.0
$787,400 home value, $2,080/mo rent
F
Safety
1.0 / 5.0
502 violent crimes/100K (32% above avg)
C
Education
2.4 / 5.0
18.0% bachelor's degree or higher
Interlaken enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 51°F in January while summers reach 63°F in July. The area gets 323 sunny days per year. Annual precipitation totals 22.7 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
51°F Jan (11°C)
63°F Jul (17°C)
| Annual Average | 57.6°F |
| 7% above US avg | |
| January Average | 51°F (11°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 323 days/yr |
Geography
| Elevation | 131 ft (40 m) |
| Area | 10.2 sq mi (26.4 km²) |
| Population Density | 836/sq mi |
| Coordinates | 36.9506°N, 121.7375°W |
| Timezone | America/Los_Angeles |
| County | San Benito County County |
| Nearest Airport | Monterey Regional (MRY) 26 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0408 ppm |
| PM2.5 (Fine Particles) | 4.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 85.2 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 56.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1868 | N. CALIFORNIA | Eruption + Earthquake | 4.5 m | 30 | 89 km |
| 1989 | N. CALIFORNIA | Earthquake | 1.0 m | 62 | 16 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | — | 79 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | — | 107 km |
| 1865 | N. CALIFORNIA | Eruption + Earthquake | — | — | 31 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (11°C) | 4.7 in | Wettest |
| February | 52°F (11°C) | 3.9 in | |
| March | 54°F (12°C) | 3.6 in | |
| April | 56°F (14°C) | 1.6 in | |
| May | 59°F (15°C) | 0.4 in | |
| June | 62°F (17°C) | 0.1 in | |
| July | 63°F (17°C) | 0.1 in | |
| August | 64°F (18°C) | 0.1 in | Warmest, Driest |
| September | 64°F (18°C) | 0.3 in | |
| October | 61°F (16°C) | 1.1 in | |
| November | 55°F (13°C) | 3.2 in | |
| December | 50°F (10°C) | 3.5 in | Coldest |
Interlaken has a seasonal temperature swing of 15°F / from 50°F in December to 64°F in August. Total annual precipitation is 22.7 inches, with January being the wettest month (4.7") and August the driest (0.1").