Delta, Everett, WA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Delta for August is 63.5 degrees
The lowest monthly average temperature in Delta for December is 39.4 degrees
The most monthly precipitation in Delta occurs in November with 5.7 inches
The air quality index in Delta is 7% worse than the national average
The pollution index in Delta is 479% worse than the national average

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Delta 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	46°F	41°F	3.8"
February	37°F	49°F	42°F	2.7"
March	39°F	52°F	45°F	4.4"
April	42°F	57°F	48°F	2.8"
May	47°F	64°F	54°F	2.2"
June	51°F	68°F	58°F	1.8"
July	55°F	74°F	63°F	0.7"
August	56°F	75°F	63°F	0.9"
September	53°F	69°F	59°F	2.0"
October	47°F	59°F	52°F	3.6"
November	40°F	51°F	45°F	5.7"
December	35°F	44°F	39°F	4.9"

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Delta 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	Delta	Everett	Washington
Air quality index	45	45	36
Pollution index	15,778,900	43,367,400	4,541,850

Delta 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	0.020%
Benzene	0.790%
Carbon Tetrachloride	0.120%
Lead	0.210%
Mercury	0.180%

Average monthly Delta temperature with heat index

Delta monthly precipitation with daily maximum

Delta monthly snow depth with daily maximum

Delta monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Lake Bosworth, WA	1,071	24	52.0%
Lake Goodwin, WA	4,613	24	52.0%
Lochsloy, WA	2,991	24	52.0%
Warm Beach, WA	2,934	24	52.0%
Lake Cassidy, WA	2,854	24	52.0%
Everett, WA	110,840	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Miami Gardens, FL	110,767	41	18.0%
West Palm Beach, FL	111,006	36	28.0%
Pompano Beach, FL	111,202	41	18.0%
Gresham, OR	110,456	38	24.0%
Downey, CA	111,263	72	44.0%
Everett, WA	110,840	45	10.0%

Source: The Delta, Everett, 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.