All Countries
Prosser, WA
Full City Profile · Washington · Benton County County
2.8
/5.0
C+
Fair
6,213
Population
1,202/sq mi density
$66,406
Median Income
$28,552 per capita
$269,300
Home Value
$411,325 Zillow
$894
Median Rent
29.6% income on rent
53°F
Avg Temperature
279 sunny days/yr
110
Violent Crime/100K
1,941 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$66,406 median income, 5.8% unemployment
A
Affordability
4.4 / 5.0
$269,300 home value, $894/mo rent
F
Safety
1.0 / 5.0
110 violent crimes/100K
C+
Education
2.6 / 5.0
20.5% bachelor's degree or higher
Prosser experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 34°F in January while summers reach 75°F in July. The area gets 279 sunny days per year. Annual precipitation totals 8.7 inches. Air quality is rated Good with a median AQI of 28.
Temperature
34°F Jan (1°C)
75°F Jul (24°C)
| Annual Average | 53.0°F |
| 2% below US avg | |
| January Average | 34°F (1°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 279 days/yr |
Geography
| Elevation | 659 ft (201 m) |
| Area | 4.5 sq mi (11.7 km²) |
| Population Density | 1,202/sq mi |
| Coordinates | 46.2090°N, 119.7677°W |
| Timezone | America/Los_Angeles |
| County | Benton County County |
| Nearest Airport | Tri-Cities (PSC) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0469 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.1 / 100 |
| Social Vulnerability | 30.3 / 100 |
| Community Resilience | 58.6 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Adams (133 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 133 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 161 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 168 km |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 176 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 182 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 186 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 1.0 in | |
| February | 37°F (3°C) | 0.8 in | |
| March | 45°F (7°C) | 0.8 in | |
| April | 51°F (11°C) | 0.6 in | |
| May | 59°F (15°C) | 0.6 in | |
| June | 66°F (19°C) | 0.4 in | |
| July | 75°F (24°C) | 0.2 in | Warmest, Driest |
| August | 71°F (22°C) | 0.3 in | |
| September | 62°F (17°C) | 0.4 in | |
| October | 51°F (11°C) | 0.6 in | |
| November | 40°F (4°C) | 1.1 in | |
| December | 32°F (-0°C) | 1.1 in | Coldest, Wettest |
Prosser has a seasonal temperature swing of 43°F / from 32°F in December to 75°F in July. Total annual precipitation is 7.9 inches, with December being the wettest month (1.1") and July the driest (0.2").