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Zillah, WA
Full City Profile · Washington · Yakima County County
3.6
/5.0
B+
Good
3,163
Population
1,738/sq mi density
$72,461
Median Income
$32,161 per capita
$297,000
Home Value
$374,696 Zillow
$1,235
Median Rent
25.8% income on rent
52°F
Avg Temperature
279 sunny days/yr
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$72,461 median income, 1.9% unemployment
A
Affordability
4.4 / 5.0
$297,000 home value, $1,235/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
B
Education
3.1 / 5.0
26.7% bachelor's degree or higher
Zillah experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 32°F in January while summers reach 75°F in July. The area gets 279 sunny days per year. Annual precipitation totals 7.8 inches. The area receives 20.4 inches of snow annually. Air quality is rated Good with a median AQI of 28.
Temperature
32°F Jan (-0°C)
75°F Jul (24°C)
| Annual Average | 52.3°F |
| 3% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 279 days/yr |
Geography
| Elevation | 820 ft (250 m) |
| Area | 1.7 sq mi (4.5 km²) |
| Population Density | 1,738/sq mi |
| Coordinates | 46.4084°N, 120.2727°W |
| Timezone | America/Los_Angeles |
| County | Yakima County County |
| Nearest Airport | Tri-Cities (PSC) 56 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 9.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 94.0 / 100 |
| Social Vulnerability | 63.9 / 100 |
| Community Resilience | 13.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively High |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively High |
| Volcano | Relatively Low |
| Avalanche | Very 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 | 148 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
7 volcanoes within 200 km. Closest: Adams (96 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 96 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 124 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 131 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 148 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 151 km |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 159 km |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 200 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 1.0 in | |
| February | 37°F (3°C) | 0.7 in | |
| March | 45°F (7°C) | 0.6 in | |
| April | 51°F (11°C) | 0.5 in | |
| May | 59°F (15°C) | 0.5 in | |
| June | 66°F (19°C) | 0.4 in | |
| July | 75°F (24°C) | 0.2 in | Warmest, Driest |
| August | 71°F (22°C) | 0.4 in | |
| September | 62°F (17°C) | 0.4 in | |
| October | 52°F (11°C) | 0.5 in | |
| November | 40°F (4°C) | 1.0 in | |
| December | 31°F (-0°C) | 1.1 in | Coldest, Wettest |
Zillah has a seasonal temperature swing of 44°F / from 31°F in December to 75°F in July. Total annual precipitation is 7.3 inches, with December being the wettest month (1.1") and July the driest (0.2").