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Ocosta, WA
Full City Profile · Washington · Grays Harbor County County
2.6
/5.0
C+
Fair
167
Population
56/sq mi density
$39,688
Median Income
$29,069 per capita
$111,700
Home Value
$277,528 Zillow
51°F
Avg Temperature
226 sunny days/yr
50
Violent Crime/100K
3,917 property/100K
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.6 / 5.0
$39,688 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$111,700 home value, /mo rent
F
Safety
1.0 / 5.0
50 violent crimes/100K
D
Education
1.8 / 5.0
9.9% bachelor's degree or higher
Ocosta experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 43°F in January while summers reach 59°F in July. The area gets 226 sunny days per year. Annual precipitation totals 75.2 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 28.
Temperature
43°F Jan (6°C)
59°F Jul (15°C)
| Annual Average | 50.8°F |
| 6% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 226 days/yr |
Geography
| Elevation | 45 ft (14 m) |
| Area | 3.0 sq mi (7.8 km²) |
| Population Density | 56/sq mi |
| Coordinates | 46.8855°N, 124.0325°W |
| Timezone | America/Los_Angeles |
| County | Grays Harbor County County |
| Nearest Airport | Astoria Regional (AST) 48 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.0 / 100 |
| Social Vulnerability | 67.2 / 100 |
| Community Resilience | 62.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Coastal Flood | Very High |
| Tsunami | Very High |
| Volcano | No Rating |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
4 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 | 128 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 130 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | — | 123 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | — | 8 | 112 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: St. Helens (161 km).
| Name | Type | Elevation | Last Eruption | Distance |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 161 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 173 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 187 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 14.0 in | |
| February | 44°F (7°C) | 11.9 in | |
| March | 46°F (8°C) | 10.5 in | |
| April | 48°F (9°C) | 6.9 in | |
| May | 53°F (11°C) | 4.4 in | |
| June | 56°F (14°C) | 3.0 in | |
| July | 59°F (15°C) | 1.9 in | Driest |
| August | 60°F (16°C) | 2.1 in | Warmest |
| September | 58°F (15°C) | 4.1 in | |
| October | 52°F (11°C) | 8.3 in | |
| November | 47°F (8°C) | 14.0 in | |
| December | 43°F (6°C) | 15.1 in | Coldest, Wettest |
Ocosta has a seasonal temperature swing of 18°F / from 43°F in December to 60°F in August. Total annual precipitation is 96.1 inches, with December being the wettest month (15.1") and July the driest (1.9").