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Duvall, WA
Full City Profile · Washington · King County County
3.8
/5.0
B+
Good
8,279
Population
3,379/sq mi density
$178,821
Median Income
$65,389 per capita
$758,100
Home Value
$968,503 Zillow
$2,602
Median Rent
29.8% income on rent
50°F
Avg Temperature
237 sunny days/yr
61
Violent Crime/100K
558 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$178,821 median income, 1.2% unemployment
A
Affordability
4.3 / 5.0
$758,100 home value, $2,602/mo rent
F
Safety
1.0 / 5.0
61 violent crimes/100K
A+
Education
5.0 / 5.0
56.9% bachelor's degree or higher
Duvall experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 38°F in January while summers reach 63°F in July. The area gets 237 sunny days per year. Annual precipitation totals 50.8 inches. The area receives 3.0 inches of snow annually. Air quality is rated Good with a median AQI of 28.
Temperature
38°F Jan (3°C)
63°F Jul (17°C)
| Annual Average | 49.5°F |
| 8% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 237 days/yr |
Geography
| Elevation | 405 ft (123 m) |
| Area | 2.5 sq mi (6.3 km²) |
| Population Density | 3,379/sq mi |
| Coordinates | 47.7355°N, 121.9722°W |
| Timezone | America/Los_Angeles |
| County | King County County |
| Nearest Airport | Seattle Paine Field International (PAE) 19 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0367 ppm |
| NO₂ (Nitrogen Dioxide) | 18.2 ppb |
| SO₂ (Sulfur Dioxide) | 0.59 ppb |
| CO (Carbon Monoxide) | 0.27 ppm |
| PM2.5 (Fine Particles) | 6.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.7 / 100 |
| Social Vulnerability | 14.8 / 100 |
| Community Resilience | 87.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Very High |
| Wildfire | Relatively Low |
| Flood | Very High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively High |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Relatively Low |
| Volcano | Relatively High |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1894 | PUYALLUP RIVER DELTA, TACOMA, WA | Meteorological | 3.0 m | 2 | 61 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | - | 118 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | - | 64 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | - | 8 | 80 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | - | - | 46 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Glacier Peak (77 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 77 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 99 km |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 116 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 172 km |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 174 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 8.0 in | Coldest |
| February | 42°F (5°C) | 5.9 in | |
| March | 44°F (7°C) | 6.0 in | |
| April | 48°F (9°C) | 4.8 in | |
| May | 54°F (12°C) | 3.8 in | |
| June | 59°F (15°C) | 2.9 in | |
| July | 63°F (17°C) | 1.7 in | Driest |
| August | 64°F (18°C) | 1.8 in | Warmest |
| September | 59°F (15°C) | 3.2 in | |
| October | 51°F (10°C) | 5.1 in | |
| November | 43°F (6°C) | 8.6 in | Wettest |
| December | 39°F (4°C) | 8.5 in |
Duvall has a seasonal temperature swing of 26°F / from 38°F in January to 64°F in August. Total annual precipitation is 60.2 inches, with November being the wettest month (8.6") and July the driest (1.7").