TODAY MAR19
TEMPERATURE63
HUMIDITY59
PRESSURE
WIND COND.
  • 6743Tue
  • 5445Wed50%80%
  • 5544Thu80%60%
  • 5742Fri
  • 5139Sat
daynightWeather update from ENUMCLAW at
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Weather Quick Facts

  • The highest monthly average temperature in Black Diamond for August is 67.5 degrees
  • The lowest monthly average temperature in Black Diamond for December is 40.6 degrees
  • The most monthly precipitation in Black Diamond occurs in November with 5.7 inches
  • The air quality index in Black Diamond is 7% worse than the national average
  • The pollution index in Black Diamond is 549% worse than the national average

Compare Black Diamond, WA Weather

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      Black Diamond Average Temperature

      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
      January36°F48°F41°F4.7"
      February37°F51°F44°F3.2"
      March40°F55°F46°F4.5"
      April43°F61°F50°F2.9"
      May48°F68°F57°F2.1"
      June53°F73°F62°F1.6"
      July58°F80°F67°F0.5"
      August58°F80°F67°F0.9"
      September53°F73°F62°F1.8"
      October47°F62°F53°F3.9"
      November40°F53°F46°F5.7"
      December36°F47°F41°F4.5"

      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 index453642
      Pollution index17,693,8004,541,8502,726,193

      Black Diamond air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality236
      Days with moderate air quality127
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      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

      CityPopulationAir Quality IndexNational Avg.
      Puyallup, WA41,6663040.0%
      McMillin, WA1,2363040.0%
      South Hill, WA64,1043040.0%
      Bonney Lake, WA21,2474510.0%
      Lake Holm, WA3,3324510.0%
      Black Diamond, WA4,7034510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Baxley, GA4,7032648.0%
      Mountain Grove, MO4,7033922.0%
      North Braddock, PA4,7035612.0%
      Hyde Park, UT4,7034412.0%
      Vandercook Lake, MI4,7023922.0%
      Black Diamond, WA4,7034510.0%
      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.