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Deer Island, OR
Full City Profile · Oregon · Clark County County
2.0
/5.0
C
Fair
191
Population
390/sq mi density
52°F
Avg Temperature
258 sunny days/yr
C
Overall
2.0 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Safety
2.5 / 5.0
0 violent crimes/100K
D
Education
1.6 / 5.0
7.4% bachelor's degree or higher
Deer Island experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 38°F in January while summers reach 67°F in July. The area gets 258 sunny days per year. Air quality is rated Good with a median AQI of 32.
Temperature
38°F Jan (3°C)
67°F Jul (19°C)
| Annual Average | 51.6°F |
| 4% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 27 ft (8 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 390/sq mi |
| Coordinates | 45.9330°N, 122.8498°W |
| Timezone | America/Los_Angeles |
| County | Clark County County |
| Nearest Airport | Southwest Washington Regional (KLS) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 32.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0412 ppm |
| PM2.5 (Fine Particles) | 6.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.2 / 100 |
| Social Vulnerability | 12.2 / 100 |
| Community Resilience | 70.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | Very Low |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 250.0 m (820 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1980 | WASHINGTON | Explosion | 250.0 m | 61 | 60 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | — | 8 | 138 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
9 volcanoes within 200 km. Closest: St. Helens (60 km).
| Name | Type | Elevation | Last Eruption | Distance |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 60 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 60 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 80 km |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 109 km |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 109 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 132 km |
| Jefferson | Stratovolcano | 3,199 m (10,495 ft) | 950 | 162 km |
| Sand Mountain Field | Pyroclastic cone(s) | 1,664 m (5,459 ft) | -950 | 187 km |
| Belknap | Shield(s) | 2,095 m (6,873 ft) | 480 | 200 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 9.0 in | Coldest |
| February | 41°F (5°C) | 7.1 in | |
| March | 45°F (7°C) | 6.0 in | |
| April | 48°F (9°C) | 4.3 in | |
| May | 53°F (12°C) | 3.1 in | |
| June | 58°F (14°C) | 2.3 in | |
| July | 67°F (19°C) | 1.0 in | Warmest, Driest |
| August | 63°F (17°C) | 1.4 in | |
| September | 59°F (15°C) | 2.6 in | |
| October | 51°F (11°C) | 4.7 in | |
| November | 44°F (6°C) | 9.1 in | |
| December | 39°F (4°C) | 9.7 in | Wettest |
Deer Island has a seasonal temperature swing of 29°F / from 38°F in January to 67°F in July. Total annual precipitation is 60.1 inches, with December being the wettest month (9.7") and July the driest (1.0").