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Mount Vernon, OR
Full City Profile · Oregon · Grant County County
2.9
/5.0
C+
Fair
429
Population
631/sq mi density
$44,844
Median Income
$44,163 per capita
$132,600
Home Value
$329,948 Zillow
$708
Median Rent
39.3% income on rent
47°F
Avg Temperature
311 sunny days/yr
59
Violent Crime/100K
2,239 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.7 / 5.0
$44,844 median income, 3.5% unemployment
A+
Affordability
5.0 / 5.0
$132,600 home value, $708/mo rent
F
Safety
1.0 / 5.0
59 violent crimes/100K
D
Education
1.9 / 5.0
11.4% bachelor's degree or higher
Mount Vernon experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 31°F in January while summers reach 67°F in July. The area gets 311 sunny days per year. Annual precipitation totals 12.3 inches. The area receives 9.6 inches of snow annually. Air quality is rated Good with a median AQI of 32.
Temperature
31°F Jan (-1°C)
67°F Jul (19°C)
| Annual Average | 46.8°F |
| 13% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 2,861 ft (872 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 631/sq mi |
| Coordinates | 44.4169°N, 119.1132°W |
| Timezone | America/Los_Angeles |
| County | Grant County County |
| Nearest Airport | Grant County Regional/Ogilvie Field (JDA) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 32.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 32.1 / 100 |
| Social Vulnerability | 80.0 / 100 |
| Community Resilience | 30.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Diamond Craters (149 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Diamond Craters | Volcanic field | 1,435 m (4,708 ft) | -5610 | 149 km |
| Devils Garden | Volcanic field | 1,698 m (5,571 ft) | Unknown | 172 km |
| Newberry | Shield | 2,434 m (7,986 ft) | 690 | 186 km |
| Jordan Craters | Volcanic field | 1,473 m (4,833 ft) | -1250 | 194 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 1.3 in | Coldest |
| February | 34°F (1°C) | 0.9 in | |
| March | 38°F (3°C) | 1.2 in | |
| April | 43°F (6°C) | 1.2 in | |
| May | 50°F (10°C) | 1.5 in | Wettest |
| June | 58°F (14°C) | 1.3 in | |
| July | 67°F (19°C) | 0.6 in | Warmest, Driest |
| August | 65°F (18°C) | 0.9 in | |
| September | 57°F (14°C) | 0.8 in | |
| October | 48°F (9°C) | 1.0 in | |
| November | 38°F (3°C) | 1.5 in | |
| December | 31°F (-0°C) | 1.5 in |
Mount Vernon has a seasonal temperature swing of 36°F / from 31°F in January to 67°F in July. Total annual precipitation is 13.6 inches, with May being the wettest month (1.5") and July the driest (0.6").