TODAY AUG21
TEMPERATURE67
HUMIDITY79
PRESSURE30.08
WIND COND.
  • 7856Wed
  • 7055Thu
  • 6855Fri20%
  • 6955Sat
  • 6554Sun
daynightWeather update from Everett Snohomish County at

Delta 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
January36°F46°F41°F3.8"
February37°F49°F42°F2.7"
March39°F52°F45°F4.4"
April42°F57°F48°F2.8"
May47°F64°F54°F2.2"
June51°F68°F58°F1.8"
July55°F74°F63°F0.7"
August56°F75°F63°F0.9"
September53°F69°F59°F2.0"
October47°F59°F52°F3.6"
November40°F51°F45°F5.7"
December35°F44°F39°F4.9"

Did you know?

  • The highest monthly average temperature in Delta for August is 63 degrees.
  • The lowest monthly average temperature in Delta for December is 39 degrees.
  • The most monthly precipitation in Delta occurs in November with 5.7 inches.
  • The air quality index in Delta is 1% better than the national average.
  • The pollution index in Delta is 211% worse than the national average.

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Compare Everett, WA Weather To Other Cities

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.
IndexDeltaEverettWashington
Air quality index494936
Pollution index15,778,90043,367,4008,596,989

Delta 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

Delta air quality information

PollutantTotal
Arsenic0.020%
Benzene0.790%
Carbon Tetrachloride0.120%
Lead0.210%
Mercury0.180%

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, StatePopulationAir Quality IndexNational Avg.
Arlington Heights, WA2,7863138%
Kayak Point, WA1,8003138%
Lake Goodwin, WA3,6403138%
Langley, WA1,3003138%
Cavalero, WA5,1193138%
Everett, WA106,580492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Palm Bay, FL106,5733530%
Highlands Ranch, CO106,596548%
Norwalk, CA106,3607448%
Pearland, TX106,238524%
North Charleston, SC106,1133628%
Everett, WA106,580492%
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.