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Middletown, CA
Full City Profile · California · Sonoma County County
3.0
/5.0
B
Good
1,659
Population
902/sq mi density
$170,605
Median Income
$45,965 per capita
$481,900
Home Value
$284,033 Zillow
$2,197
Median Rent
16.8% income on rent
60°F
Avg Temperature
302 sunny days/yr
57
Violent Crime/100K
1,383 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$170,605 median income, 7.3% unemployment
A+
Affordability
5.0 / 5.0
$481,900 home value, $2,197/mo rent
F
Safety
1.0 / 5.0
57 violent crimes/100K
C
Education
2.0 / 5.0
12.8% bachelor's degree or higher
Middletown enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 49°F in January while summers reach 72°F in July. The area gets 302 sunny days per year. Annual precipitation totals 38.6 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
49°F Jan (10°C)
72°F Jul (22°C)
| Annual Average | 60.1°F |
| 11% above US avg | |
| January Average | 49°F (10°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 1,107 ft (337 m) |
| Area | 1.8 sq mi (4.8 km²) |
| Population Density | 902/sq mi |
| Coordinates | 38.7519°N, 122.6221°W |
| Timezone | America/Los_Angeles |
| County | Sonoma County County |
| Nearest Airport | Sacramento International (SMF) 56 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0321 ppm |
| NO₂ (Nitrogen Dioxide) | 5.8 ppb |
| CO (Carbon Monoxide) | 0.29 ppm |
| PM2.5 (Fine Particles) | 5.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.1 / 100 |
| Social Vulnerability | 29.8 / 100 |
| Community Resilience | 66.2 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very Low |
| Volcano | Relatively 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 | 126 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | — | 142 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | — | 117 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (27 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 27 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (10°C) | 8.5 in | Wettest |
| February | 47°F (8°C) | 6.3 in | |
| March | 49°F (10°C) | 5.4 in | |
| April | 53°F (12°C) | 2.4 in | |
| May | 60°F (15°C) | 0.6 in | |
| June | 67°F (19°C) | 0.2 in | |
| July | 72°F (22°C) | 0.0 in | Warmest, Driest |
| August | 72°F (22°C) | 0.2 in | |
| September | 68°F (20°C) | 0.6 in | |
| October | 60°F (16°C) | 2.2 in | |
| November | 50°F (10°C) | 5.8 in | |
| December | 45°F (7°C) | 6.7 in | Coldest |
Middletown has a seasonal temperature swing of 28°F / from 45°F in December to 72°F in July. Total annual precipitation is 38.9 inches, with January being the wettest month (8.5") and July the driest (0.0").