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Monument Hills, CA
Full City Profile · California · Yolo County County
3.9
/5.0
B+
Good
1,500
Population
376/sq mi density
$240,833
Median Income
$121,085 per capita
$903,200
Home Value
$549,728 Zillow
62°F
Avg Temperature
326 sunny days/yr
524
Violent Crime/100K
3,089 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$240,833 median income, 0.9% unemployment
A+
Affordability
4.6 / 5.0
$903,200 home value, /mo rent
F
Safety
1.0 / 5.0
524 violent crimes/100K (38% above avg)
A+
Education
4.9 / 5.0
49.1% bachelor's degree or higher
Monument Hills enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 47°F in January while summers reach 77°F in July. The area gets 326 sunny days per year. Annual precipitation totals 20.5 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
47°F Jan (8°C)
77°F Jul (25°C)
| Annual Average | 62.2°F |
| 15% above US avg | |
| January Average | 47°F (8°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 326 days/yr |
Geography
| Elevation | 135 ft (41 m) |
| Area | 1.6 sq mi (4.0 km²) |
| Population Density | 376/sq mi |
| Coordinates | 38.6641°N, 121.8754°W |
| Timezone | America/Los_Angeles |
| County | Yolo County County |
| Nearest Airport | Sacramento International (SMF) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0410 ppm |
| NO₂ (Nitrogen Dioxide) | 5.7 ppb |
| PM2.5 (Fine Particles) | 7.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 91.4 / 100 |
| Social Vulnerability | 24.2 / 100 |
| Community Resilience | 69.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Very High |
| Cold Wave | No Rating |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
3 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 | 109 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | — | 135 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | — | 120 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (85 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 85 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 47°F (8°C) | 4.6 in | Wettest |
| February | 51°F (10°C) | 3.9 in | |
| March | 55°F (13°C) | 3.1 in | |
| April | 59°F (15°C) | 1.0 in | |
| May | 67°F (19°C) | 0.5 in | |
| June | 72°F (22°C) | 0.2 in | |
| July | 77°F (25°C) | 0.0 in | Warmest, Driest |
| August | 75°F (24°C) | 0.0 in | |
| September | 72°F (22°C) | 0.3 in | |
| October | 64°F (18°C) | 1.1 in | |
| November | 53°F (12°C) | 3.0 in | |
| December | 46°F (8°C) | 3.2 in | Coldest |
Monument Hills has a seasonal temperature swing of 31°F / from 46°F in December to 77°F in July. Total annual precipitation is 20.7 inches, with January being the wettest month (4.6") and July the driest (0.0").