Harper, OR
Full City Profile · Oregon · Malheur County County
3.4
/5.0
B
Good
159
Population
23/sq mi density
$50,000
Median Income
$28,200 per capita
$173,400
Home Value
$329,399 Zillow
50°F
Avg Temperature
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$50,000 median income, 0.0% unemployment
A+
Affordability
4.7 / 5.0
$173,400 home value, /mo rent
F
Education
1.5 / 5.0
5.9% bachelor's degree or higher
Harper experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 30°F in January while summers reach 75°F in July. Annual precipitation totals 10.0 inches. The area receives 6.0 inches of snow annually.
Temperature
30°F Jan (-1°C)
75°F Jul (24°C)
| Annual Average | 50.4°F |
| 7% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 2,564 ft (782 m) |
| Area | 2.7 sq mi (7.0 km²) |
| Population Density | 23/sq mi |
| Coordinates | 43.8570°N, 117.6265°W |
| Timezone | America/Los_Angeles |
| County | Malheur County County |
| Nearest Airport | Boise Air Trml/Gowen Field (BOI) 73 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 34.8 / 100 |
| Social Vulnerability | 42.2 / 100 |
| Community Resilience | 2.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| 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
2 volcanoes within 200 km. Closest: Jordan Craters (80 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Jordan Craters | Volcanic field | 1,473 m (4,833 ft) | -1250 | 80 km |
| Diamond Craters | Volcanic field | 1,435 m (4,708 ft) | -5610 | 124 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 1.2 in | |
| February | 35°F (1°C) | 0.9 in | |
| March | 43°F (6°C) | 0.9 in | |
| April | 49°F (9°C) | 0.9 in | |
| May | 58°F (14°C) | 1.1 in | |
| June | 65°F (18°C) | 0.7 in | |
| July | 75°F (24°C) | 0.4 in | Warmest |
| August | 73°F (23°C) | 0.5 in | |
| September | 63°F (17°C) | 0.3 in | Driest |
| October | 50°F (10°C) | 0.7 in | |
| November | 37°F (3°C) | 1.0 in | |
| December | 30°F (-1°C) | 1.4 in | Coldest, Wettest |
Harper has a seasonal temperature swing of 45°F / from 30°F in December to 75°F in July. Total annual precipitation is 10.0 inches, with December being the wettest month (1.4") and September the driest (0.3").