TODAY APR01
TEMPERATURE44
HUMIDITY42
PRESSURE
WIND COND.272 14
  • 5333Wed20%20%
  • 5432Thu
  • 5530Fri
  • 5537Sat
  • 5738Sun30%20%
daynightWeather update from OTHELLO at
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Mattawa 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
January23°F37°F30°F0.7"
February28°F49°F38°F1.2"
March37°F61°F49°F1.8"
April40°F67°F54°F0.9"
May50°F78°F65°F1.7"
June55°F83°F69°F1.4"
July64°F95°F80°F1.1"
August60°F92°F76°F1.4"
September51°F80°F66°F2.3"
October42°F64°F53°F1.8"
November32°F47°F40°F1.5"
December25°F37°F31°F2.1"

Did you know?

  • The highest monthly average temperature in Mattawa for July is 80 degrees.
  • The lowest monthly average temperature in Mattawa for January is 30 degrees.
  • The most monthly precipitation in Mattawa occurs in September with 2.3 inches.
  • The air quality index in Mattawa is 20% better than the national average.
  • The pollution index in Mattawa is 47% better than the national average.

Compare Mattawa, WA Weather To Other Cities

      vs

      Mattawa 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.
      IndexMattawaWashingtonNational
      Air quality index403650
      Pollution index2,683,4108,596,9895,066,862

      Mattawa air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality231
      Days with moderate air quality116
      Days w/ poor A.Q. for sensitive groups14
      Days with unhealthy air quality4

      Mattawa air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.040%
      Carbon Tetrachloride0.004%
      Lead0.030%
      Mercury0.000%

      Average monthly Mattawa temperature with heat index

      Mattawa monthly precipitation with daily maximum

      Mattawa monthly snow depth with daily maximum

      Mattawa monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Vantage, WA161864%
      Royal City, WA1,6292452%
      Desert Aire, WA2,2784020%
      Mattawa, WA4,4164020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Dumas, AR4,4163726%
      Jacksboro, TX4,4152648%
      Lindale, GA4,415524%
      Maize, KS4,4143922%
      Lamar, MO4,420325550%
      Mattawa, WA4,4164020%
      Source: The Mattawa, 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.