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How would you rate the air quality in Washington?View resultsWrite a review to give others more information about this area.

Washington 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
January35°F49°F41°F7.8"
February35°F47°F40°F8.4"
March36°F49°F41°F10.1"
April38°F54°F45°F5.7"
May46°F62°F53°F3.7"
June55°F71°F62°F1.4"
July64°F79°F71°F0.1"
August63°F79°F70°F0.1"
September58°F74°F65°F1.4"
October48°F63°F54°F4.8"
November40°F53°F46°F7.3"
December34°F46°F39°F11.7"

Did you know?

  • The highest monthly average temperature in Washington for July is 71 degrees.
  • The lowest monthly average temperature in Washington for December is 39 degrees.
  • The most monthly precipitation in Washington occurs in December with 11.7 inches.
  • The air quality index in Washington is 12% better than the national average.
  • The pollution index in Washington is 15% better than the national average.

Compare Washington, CA Weather To Other Cities

Washington 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.
IndexWashingtonCaliforniaNational
Air quality index445550
Pollution index4,289,31018,106,7265,066,862

Washington air quality information

MeasurementTotal
Days measured363
Days with good air quality238
Days with moderate air quality120
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Washington air quality information

PollutantTotal
Arsenic0.050%
Benzene0.070%
Carbon Tetrachloride0.001%
Lead0.060%
Mercury0.010%

Average monthly Washington temperature with heat index

Washington monthly precipitation with daily maximum

Washington monthly snow depth with daily maximum

Washington monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Pike, CA654216%
Camptonville, CA1714216%
Grass Valley, CA12,8614216%
Nevada City, CA3,1174216%
Alleghany, CA1344412%
Washington, CA794412%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Eccles, WV79295490%
Glen Lyn, VA793530%
Katherine, AZ791864%
Foundryville, PA794020%
Flowella, TX793138%
Washington, CA794412%
Source: The Washington, CA 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.
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