Warm-summer Mediterranean
Black Diamond, Washington
King County, Washington · Population 5.7k · 676 ft elevation
Living in Black Diamond
Black Diamond has a warm-summer mediterranean climate: pleasantly warm summers (July highs around 77°F) and chilly winters (January lows around 33°F).
Precipitation is very wet at about 60″ a year, and it gets light snow (18″ a season).
Skies are partly sunny (55% of possible sunshine). It never gets truly muggy.
Air quality is moderate: a median AQI of 43 and virtually no unhealthy-air days.
Black Diamond is an outdoor hub: about 29% of the land within 30 miles is public (parks, national forest and the like), and the terrain rises and falls about 4,200 ft around town.
Black Diamond at a glance
- Population
- 5.7k
- Elevation
- 676 ft
- Average daily high
- 60°F18th percentile
- Average daily low
- 40°F19th percentile
- Annual precipitation
- 60″95th percentile
- Annual snowfall
- 18″56th percentile
- Sunshine hours per year
- 2,573 hrs19th percentile
- Median AQI
- 4356th percentile
- Median home value
- $776k93th percentile
- Median rent
- $2,340/mo93th percentile
- Median household income
- $145k92th percentile
- Property tax rate
- 0.76%32th percentile
- Top state income-tax rate
- 0.0%
- Sales tax (state + local)
- 9.4%
- Unemployment rate
- 1.1%
- Homes with broadband
- 93%62th percentile
- Walkability index
- 5.911th percentile
- Average commute
- 37 min
- Math proficiency (8th grade)
- 61%73th percentile
- Reading proficiency (8th grade)
- 71%
- Violent crime rate
- 41 per 100k12th percentile
- Property crime rate
- 447 per 100k
- Overall natural-hazard risk
- 10093th percentile
- Outdoor access
- 9594th percentile
- Public land within 10 miles
- 17%
- Public land within 30 miles
- 29%
- Mountain relief within 30 miles
- 4,232 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 45°F | 33°F | 8.0″ | 6.1″ | 105 hrs |
| Feb | 48°F | 32°F | 5.4″ | 4.0″ | 139 hrs |
| Mar | 53°F | 34°F | 6.2″ | 2.0″ | 170 hrs |
| Apr | 58°F | 38°F | 5.5″ | 0.4″ | 217 hrs |
| May | 65°F | 43°F | 3.9″ | — | 270 hrs |
| Jun | 70°F | 48°F | 3.1″ | — | 297 hrs |
| Jul | 77°F | 51°F | 1.3″ | — | 381 hrs |
| Aug | 77°F | 51°F | 1.6″ | — | 345 hrs |
| Sep | 70°F | 46°F | 2.8″ | — | 262 hrs |
| Oct | 59°F | 41°F | 5.8″ | — | 186 hrs |
| Nov | 49°F | 35°F | 8.5″ | 0.9″ | 112 hrs |
| Dec | 44°F | 32°F | 7.5″ | 4.1″ | 89 hrs |
Near Black Diamond
- Maple Valley, WA · 28k
- Lake Morton-Berrydale, WA · 11k
- Lake Holm, WA · 3.7k
- Covington, WA · 21k
- Hobart, WA · 6.8k
- Enumclaw, WA · 13k
- Auburn, WA · 85k
- Maple Heights-Lake Desire, WA · 3.7k
Largest places in Washington
- Seattle, WA · 741k
- Spokane, WA · 229k
- Tacoma, WA · 220k
- Vancouver, WA · 193k
- Bellevue, WA · 151k
- Kent, WA · 135k
- Everett, WA · 111k
- Spokane Valley, WA · 105k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology