Tranquillity, CA
Full City Profile · California · Fresno County County
2.5
/5.0
C+
Fair
707
Population
1,140/sq mi density
$61,250
Median Income
$30,118 per capita
$350,000
Home Value
$290,743 Zillow
$1,230
Median Rent
28.3% income on rent
63°F
Avg Temperature
C+
Overall
2.5 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.9 / 5.0
$61,250 median income, 18.9% unemployment
B
Affordability
3.4 / 5.0
$350,000 home value, $1,230/mo rent
F
Education
1.3 / 5.0
3.6% bachelor's degree or higher
Tranquillity enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 48°F in January while summers reach 80°F in July. Annual precipitation totals 10.8 inches. The area receives 0.0 inches of snow annually. Air quality is rated Moderate with a median AQI of 67.
Temperature
48°F Jan (9°C)
80°F Jul (27°C)
| Annual Average | 63.3°F |
| 17% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 80°F (27°C) |
Geography
| Elevation | 156 ft (48 m) |
| Area | 0.6 sq mi (1.6 km²) |
| Population Density | 1,140/sq mi |
| Coordinates | 36.6480°N, 120.2525°W |
| Timezone | America/Los_Angeles |
| County | Fresno County County |
| Nearest Airport | Fresno Yosemite International (FAT) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 67.0 |
| Rating | Moderate |
| Good Days % | 19.4% |
| Unhealthy Days | 79 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0471 ppm |
| NO₂ (Nitrogen Dioxide) | 13.6 ppb |
| SO₂ (Sulfur Dioxide) | 0.54 ppb |
| CO (Carbon Monoxide) | 0.32 ppm |
| PM2.5 (Fine Particles) | 9.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.3 / 100 |
| Social Vulnerability | 60.3 / 100 |
| Community Resilience | 16.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Relatively High |
| Strong Wind | Very Low |
| Heat Wave | Relatively High |
| Winter Weather | Very Low |
| Lightning | Relatively High |
| Drought | Very High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1901 | MONTEREY BAY, N. CALIFORNIA | Eruption + Earthquake | - | - | 75 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Mammoth Mountain (154 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Mammoth Mountain | Lava dome(s) | 3,369 m (11,053 ft) | 1260 | 154 km |
| Mono-Inyo Craters | Lava dome(s) | 2,796 m (9,173 ft) | 1380 | 168 km |
| Golden Trout Creek | Volcanic field | 2,886 m (9,469 ft) | -5550 | 176 km |
| Mono Lake Volcanic Field | Pyroclastic cone(s) | 2,121 m (6,959 ft) | 1790 | 185 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 2.1 in | Wettest |
| February | 52°F (11°C) | 2.0 in | |
| March | 56°F (13°C) | 2.0 in | |
| April | 61°F (16°C) | 0.9 in | |
| May | 68°F (20°C) | 0.5 in | |
| June | 75°F (24°C) | 0.2 in | |
| July | 80°F (27°C) | 0.0 in | Warmest |
| August | 79°F (26°C) | 0.0 in | Driest |
| September | 75°F (24°C) | 0.0 in | |
| October | 65°F (18°C) | 0.4 in | |
| November | 54°F (12°C) | 0.9 in | |
| December | 47°F (8°C) | 1.8 in | Coldest |
Tranquillity has a seasonal temperature swing of 33°F / from 47°F in December to 80°F in July. Total annual precipitation is 10.8 inches, with January being the wettest month (2.1") and August the driest (0.0").