Black Diamond, WA Weather - Forecast & Monthly Averages

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TEMPERATURE	56
HUMIDITY	92
PRESSURE
WIND COND.	123 4.8

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

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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.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	36°F	48°F	41°F	4.7"
February	37°F	51°F	44°F	3.2"
March	40°F	55°F	46°F	4.5"
April	43°F	61°F	50°F	2.9"
May	48°F	68°F	57°F	2.1"
June	53°F	73°F	62°F	1.6"
July	58°F	80°F	67°F	0.5"
August	58°F	80°F	67°F	0.9"
September	53°F	73°F	62°F	1.8"
October	47°F	62°F	53°F	3.9"
November	40°F	53°F	46°F	5.7"
December	36°F	47°F	41°F	4.5"

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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.
Index	Black Diamond	Washington	National
Air quality index	45	36	42
Pollution index	17,693,800	4,541,850	2,726,193

Black Diamond air quality

Measurement	Total
Days measured	365
Days with good air quality	236
Days with moderate air quality	127
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.300%
Carbon Tetrachloride	0.050%
Lead	0.110%
Mercury	0.020%

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	Population	Air Quality Index	National Avg.
Puyallup, WA	41,666	30	40.0%
McMillin, WA	1,236	30	40.0%
South Hill, WA	64,104	30	40.0%
Bonney Lake, WA	21,247	45	10.0%
Lake Holm, WA	3,332	45	10.0%
Black Diamond, WA	4,703	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Baxley, GA	4,703	26	48.0%
Mountain Grove, MO	4,703	39	22.0%
North Braddock, PA	4,703	56	12.0%
Hyde Park, UT	4,703	44	12.0%
Vandercook Lake, MI	4,702	39	22.0%
Black Diamond, WA	4,703	45	10.0%

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.