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Gervais, OR
Full City Profile · Oregon · Clackamas County County
2.9
/5.0
C+
Fair
2,588
Population
6,312/sq mi density
$86,250
Median Income
$34,339 per capita
$330,400
Home Value
$426,659 Zillow
$1,688
Median Rent
37.5% income on rent
53°F
Avg Temperature
251 sunny days/yr
72
Violent Crime/100K
467 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$86,250 median income, 6.2% unemployment
A+
Affordability
4.5 / 5.0
$330,400 home value, $1,688/mo rent
F
Safety
1.0 / 5.0
72 violent crimes/100K
D
Education
1.9 / 5.0
10.7% bachelor's degree or higher
Gervais experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 41°F in January while summers reach 68°F in July. The area gets 251 sunny days per year. Annual precipitation totals 47.2 inches. The area receives 1.1 inches of snow annually. Air quality is rated Good with a median AQI of 32.
Temperature
41°F Jan (5°C)
68°F Jul (20°C)
| Annual Average | 53.1°F |
| 2% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 251 days/yr |
Geography
| Elevation | 186 ft (57 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 6,312/sq mi |
| Coordinates | 45.1080°N, 122.8964°W |
| Timezone | America/Los_Angeles |
| County | Clackamas County County |
| Nearest Airport | Portland International (PDX) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 32.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0447 ppm |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 94.9 / 100 |
| Social Vulnerability | 13.4 / 100 |
| Community Resilience | 69.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Moderate |
| Coastal Flood | Very Low |
| Volcano | Relatively Moderate |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami 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 | 134 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
11 volcanoes within 200 km. Closest: Hood (99 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 99 km |
| Jefferson | Stratovolcano | 3,199 m (10,495 ft) | 950 | 99 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 107 km |
| Sand Mountain Field | Pyroclastic cone(s) | 1,664 m (5,459 ft) | -950 | 111 km |
| Belknap | Shield(s) | 2,095 m (6,873 ft) | 480 | 124 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 124 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 134 km |
| Three Sisters | Complex | 3,159 m (10,364 ft) | 440 | 141 km |
| Bachelor | Stratovolcano | 2,763 m (9,065 ft) | -5800 | 158 km |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 164 km |
| Davis Lake | Volcanic field | 2,163 m (7,096 ft) | -2790 | 191 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 6.1 in | |
| February | 43°F (6°C) | 4.8 in | |
| March | 47°F (8°C) | 4.4 in | |
| April | 51°F (10°C) | 2.6 in | |
| May | 56°F (13°C) | 2.0 in | |
| June | 61°F (16°C) | 1.4 in | |
| July | 68°F (20°C) | 0.6 in | Warmest, Driest |
| August | 67°F (19°C) | 0.8 in | |
| September | 62°F (17°C) | 1.6 in | |
| October | 53°F (12°C) | 3.0 in | |
| November | 45°F (7°C) | 6.3 in | |
| December | 40°F (4°C) | 7.0 in | Coldest, Wettest |
Gervais has a seasonal temperature swing of 28°F / from 40°F in December to 68°F in July. Total annual precipitation is 40.6 inches, with December being the wettest month (7.0") and July the driest (0.6").