Jefferson, OR
Full City Profile · Oregon · Polk County County
3.5
/5.0
B+
Good
3,316
Population
3,856/sq mi density
$90,391
Median Income
$32,900 per capita
$333,000
Home Value
$459,531 Zillow
$1,232
Median Rent
21.3% income on rent
54°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$90,391 median income, 8.6% unemployment
A+
Affordability
4.6 / 5.0
$333,000 home value, $1,232/mo rent
C
Education
2.4 / 5.0
16.9% bachelor's degree or higher
Jefferson experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 42°F in January while summers reach 69°F in July. Annual precipitation totals 40.1 inches. The area receives 2.9 inches of snow annually.
Temperature
42°F Jan (6°C)
69°F Jul (21°C)
| Annual Average | 54.1°F |
| 0% below US avg | |
| January Average | 42°F (6°C) |
| July Average | 69°F (21°C) |
Geography
| Elevation | 237 ft (72 m) |
| Area | 0.8 sq mi (2.0 km²) |
| Population Density | 3,856/sq mi |
| Coordinates | 44.7166°N, 123.0060°W |
| Timezone | America/Los_Angeles |
| County | Polk County County |
| Nearest Airport | Mahlon Sweet Field (EUG) 42 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 72.8 / 100 |
| Social Vulnerability | 18.2 / 100 |
| Community Resilience | 64.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Coastal Flood | No Rating |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
12 volcanoes within 200 km. Closest: Sand Mountain Field (93 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Sand Mountain Field | Pyroclastic cone(s) | 1,664 m (5,459 ft) | -950 | 93 km |
| Jefferson | Stratovolcano | 3,199 m (10,495 ft) | 950 | 95 km |
| Belknap | Shield(s) | 2,095 m (6,873 ft) | 480 | 104 km |
| Three Sisters | Complex | 3,159 m (10,364 ft) | 440 | 118 km |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 126 km |
| Bachelor | Stratovolcano | 2,763 m (9,065 ft) | -5800 | 133 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 148 km |
| Davis Lake | Volcanic field | 2,163 m (7,096 ft) | -2790 | 159 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 164 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 177 km |
| Cinnamon Butte | Pyroclastic cone(s) | 1,956 m (6,417 ft) | Unknown | 179 km |
| Newberry | Shield | 2,434 m (7,986 ft) | 690 | 180 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 6.1 in | |
| February | 44°F (7°C) | 4.5 in | |
| March | 48°F (9°C) | 4.4 in | |
| April | 51°F (11°C) | 3.1 in | |
| May | 58°F (14°C) | 2.3 in | |
| June | 63°F (17°C) | 1.3 in | |
| July | 69°F (21°C) | 0.3 in | Warmest, Driest |
| August | 69°F (21°C) | 0.4 in | |
| September | 64°F (18°C) | 1.5 in | |
| October | 54°F (12°C) | 3.5 in | |
| November | 46°F (8°C) | 6.0 in | |
| December | 41°F (5°C) | 7.0 in | Coldest, Wettest |
Jefferson has a seasonal temperature swing of 28°F / from 41°F in December to 69°F in July. Total annual precipitation is 40.1 inches, with December being the wettest month (7.0") and July the driest (0.3").