River Road, WA
Full City Profile · Washington · San Juan County County
3.7
/5.0
B+
Good
952
Population
2,720/sq mi density
$116,087
Median Income
$25,977 per capita
$394,200
Home Value
$555,387 Zillow
49°F
Avg Temperature
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$116,087 median income, 9.2% unemployment
A+
Affordability
4.8 / 5.0
$394,200 home value, /mo rent
C+
Education
2.7 / 5.0
20.8% bachelor's degree or higher
River Road experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 39°F in January while summers reach 61°F in July. Annual precipitation totals 16.9 inches. The area receives 1.4 inches of snow annually.
Temperature
39°F Jan (4°C)
61°F Jul (16°C)
| Annual Average | 48.9°F |
| 9% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 61°F (16°C) |
Geography
| Elevation | 317 ft (97 m) |
| Area | 0.1 sq mi (0.3 km²) |
| Population Density | 2,720/sq mi |
| Coordinates | 48.0677°N, 123.1276°W |
| Timezone | America/Los_Angeles |
| County | San Juan County County |
| Nearest Airport | Jefferson County International (TWD) 15 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 35.4 / 100 |
| Social Vulnerability | 61.0 / 100 |
| Community Resilience | 95.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Low |
| Tsunami | Very Low |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1894 | PUYALLUP RIVER DELTA, TACOMA, WA | Meteorological | 3.0 m | 2 | 101 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | - | 29 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | - | 96 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | - | 8 | 107 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | - | - | 57 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Baker (125 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 125 km |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 150 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 170 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 198 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 2.2 in | |
| February | 40°F (4°C) | 1.4 in | |
| March | 43°F (6°C) | 1.5 in | |
| April | 47°F (8°C) | 1.2 in | |
| May | 53°F (12°C) | 1.2 in | |
| June | 57°F (14°C) | 0.9 in | |
| July | 61°F (16°C) | 0.5 in | Warmest, Driest |
| August | 61°F (16°C) | 0.6 in | |
| September | 56°F (13°C) | 0.9 in | |
| October | 49°F (9°C) | 1.6 in | |
| November | 43°F (6°C) | 2.6 in | Wettest |
| December | 39°F (4°C) | 2.3 in | Coldest |
River Road has a seasonal temperature swing of 22°F / from 39°F in December to 61°F in July. Total annual precipitation is 16.9 inches, with November being the wettest month (2.6") and July the driest (0.5").