St. Helens, OR
Full City Profile · Oregon · Clark County County
2.9
/5.0
C+
Fair
14,152
Population
2,912/sq mi density
$82,123
Median Income
$35,240 per capita
$350,900
Home Value
$476,758 Zillow
$1,269
Median Rent
29.4% income on rent
53°F
Avg Temperature
274
Violent Crime/100K
944 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$82,123 median income, 4.5% unemployment
A
Affordability
4.3 / 5.0
$350,900 home value, $1,269/mo rent
F
Safety
1.0 / 5.0
274 violent crimes/100K
C
Education
2.3 / 5.0
16.0% bachelor's degree or higher
St. Helens experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 40°F in January while summers reach 68°F in July. Annual precipitation totals 42.3 inches. The area receives 3.0 inches of snow annually.
Temperature
40°F Jan (5°C)
68°F Jul (20°C)
| Annual Average | 53.0°F |
| 2% below US avg | |
| January Average | 40°F (5°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 95 ft (29 m) |
| Area | 4.9 sq mi (12.6 km²) |
| Population Density | 2,912/sq mi |
| Coordinates | 45.8568°N, 122.8163°W |
| Timezone | America/Los_Angeles |
| County | Clark County County |
| Nearest Airport | Southwest Washington Regional (KLS) 18 miles away |
Precipitation & Snow
Air Quality
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 | 62 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | - | 8 | 147 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
9 volcanoes within 200 km. Closest: West Crater (57 km).
| Name | Type | Elevation | Last Eruption | Distance |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 57 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 62 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 78 km |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 102 km |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 110 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 137 km |
| Jefferson | Stratovolcano | 3,199 m (10,495 ft) | 950 | 154 km |
| Sand Mountain Field | Pyroclastic cone(s) | 1,664 m (5,459 ft) | -950 | 178 km |
| Belknap | Shield(s) | 2,095 m (6,873 ft) | 480 | 191 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 6.5 in | |
| February | 43°F (6°C) | 4.6 in | |
| March | 47°F (8°C) | 4.5 in | |
| April | 51°F (10°C) | 3.1 in | |
| May | 57°F (14°C) | 2.5 in | |
| June | 62°F (17°C) | 1.4 in | |
| July | 68°F (20°C) | 0.5 in | Driest |
| August | 68°F (20°C) | 0.5 in | Warmest |
| September | 63°F (17°C) | 1.6 in | |
| October | 53°F (12°C) | 3.6 in | |
| November | 45°F (7°C) | 6.3 in | |
| December | 40°F (4°C) | 7.3 in | Coldest, Wettest |
St. Helens has a seasonal temperature swing of 28°F / from 40°F in December to 68°F in August. Total annual precipitation is 42.3 inches, with December being the wettest month (7.3") and July the driest (0.5").