TODAY JUL19
TEMPERATURE58
HUMIDITY80
PRESSURE
WIND COND.
  • 7253Thu
  • 7352Fri
  • 7855Sat
  • 8559Sun
  • 8961Mon
daynightWeather update from ENUMCLAW at

Black Diamond Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January18°F64°F41°F5.2"
February19°F63°F42°F1.8"
March25°F72°F46°F3.5"
April30°F79°F50°F2.6"
May38°F91°F57°F2.3"
June45°F90°F61°F1.6"
July48°F106°F68°F0.5"
August48°F91°F66°F1.2"
September42°F90°F61°F1.5"
October28°F81°F53°F3.1"
November18°F65°F46°F7.4"
December15°F62°F40°F5.0"

Did you know?

  • The highest monthly average temperature in Black Diamond for July is 68 degrees.
  • The lowest monthly average temperature in Black Diamond for December is 40 degrees.
  • The most monthly precipitation in Black Diamond occurs in November with 7.4 inches.
  • The air quality index in Black Diamond is 1% better than the national average.
  • The pollution index in Black Diamond is 249% worse than the national average.

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Compare Black Diamond, WA Weather To Other Cities

Black Diamond air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexBlack DiamondWashingtonNational
Air quality index493650
Pollution index17,693,8008,596,9895,066,862

Black Diamond air quality information

MeasurementTotal
Days measured365
Days with good air quality195
Days with moderate air quality162
Days w/ poor A.Q. for sensitive groups8
Days with unhealthy air quality

Black Diamond air quality information

PollutantTotal
Arsenic0.010%
Benzene0.300%
Carbon Tetrachloride0.050%
Lead0.110%
Mercury0.020%

Average monthly Black Diamond temperature with heat index

Black Diamond monthly precipitation with daily maximum

Black Diamond monthly snow depth with daily maximum

Black Diamond monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
McMillin, WA1,6183138%
South Hill, WA55,1943138%
Puyallup, WA39,2743138%
Auburn, WA75,607492%
Buckley, WA4,516492%
Black Diamond, WA4,321492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Amite City, LA4,3212844%
Magnolia, NJ4,3215714%
North Kansas City, MO4,3215816%
Kensington Park, FL4,3203824%
Isle of Palms, SC4,3203628%
Black Diamond, WA4,321492%
Source: The Black Diamond, WA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.