Fort Irwin, CA
Full City Profile · California · San Bernardino County County
3.4
/5.0
B
Good
8,791
Population
1,261/sq mi density
$66,964
Median Income
$28,872 per capita
$1,601
Median Rent
29.3% income on rent
68°F
Avg Temperature
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.0 / 5.0
$66,964 median income, 9.2% unemployment
B+
Affordability
3.8 / 5.0
B
Education
3.5 / 5.0
30.7% bachelor's degree or higher
Fort Irwin enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 49°F in January while summers reach 90°F in July. Annual precipitation totals 5.2 inches. The area receives 0.2 inches of snow annually. Air quality is rated Moderate with a median AQI of 87.
Temperature
49°F Jan (9°C)
90°F Jul (32°C)
| Annual Average | 68.0°F |
| 26% above US avg | |
| January Average | 49°F (9°C) |
| July Average | 90°F (32°C) |
Geography
| Elevation | 2,463 ft (751 m) |
| Area | 7.0 sq mi (18.1 km²) |
| Population Density | 1,261/sq mi |
| Coordinates | 35.2477°N, 116.6834°W |
| Timezone | America/Los_Angeles |
| County | San Bernardino County County |
| Nearest Airport | San Bernardino International (SBD) 86 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 87.0 |
| Rating | Moderate |
| Good Days % | 10.9% |
| Unhealthy Days | 144 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0529 ppm |
| NO₂ (Nitrogen Dioxide) | 22.1 ppb |
| SO₂ (Sulfur Dioxide) | 0.25 ppb |
| CO (Carbon Monoxide) | 0.28 ppm |
| PM2.5 (Fine Particles) | 9.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.8 / 100 |
| Social Vulnerability | 33.2 / 100 |
| Community Resilience | 20.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | No Rating |
| Earthquake | Very High |
| Wildfire | Very High |
| Flood | Very High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very High |
| Volcano | Very Low |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
1 volcano within 200 km. Closest: Golden Trout Creek (192 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Golden Trout Creek | Volcanic field | 2,886 m (9,469 ft) | -5550 | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (9°C) | 0.9 in | |
| February | 53°F (12°C) | 1.2 in | Wettest |
| March | 59°F (15°C) | 0.6 in | |
| April | 65°F (19°C) | 0.1 in | |
| May | 74°F (23°C) | 0.1 in | |
| June | 84°F (29°C) | 0.0 in | Driest |
| July | 90°F (32°C) | 0.5 in | Warmest |
| August | 89°F (31°C) | 0.2 in | |
| September | 81°F (27°C) | 0.2 in | |
| October | 69°F (20°C) | 0.4 in | |
| November | 56°F (13°C) | 0.5 in | |
| December | 47°F (9°C) | 0.6 in | Coldest |
Fort Irwin has a seasonal temperature swing of 42°F / from 47°F in December to 90°F in July. Total annual precipitation is 5.2 inches, with February being the wettest month (1.2") and June the driest (0.0").