TODAY APR23
TEMPERATURE58
HUMIDITY37
PRESSURE101520
WIND COND. 5.4
  • 7147Wed
  • 6648Thu20%60%
  • 6446Fri70%30%
  • 6445Sat30%
  • 6643Sun
daynightWeather update from Walla Walla Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Walla Walla for July is 77.4 degrees
  • The lowest monthly average temperature in Walla Walla for December is 33.8 degrees
  • The most monthly precipitation in Walla Walla occurs in March with 2.6 inches
  • The air quality index in Walla Walla is 45% better than the national average
  • The pollution index in Walla Walla is 74% better than the national average

Compare Walla Walla, WA Weather

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      Walla Walla 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
      January29°F43°F35°F1.8"
      February33°F49°F39°F1.4"
      March38°F58°F47°F2.6"
      April42°F64°F52°F2.0"
      May49°F74°F60°F1.8"
      June55°F82°F67°F1.5"
      July63°F93°F77°F0.3"
      August62°F91°F76°F0.2"
      September54°F81°F66°F0.6"
      October44°F66°F54°F1.7"
      November36°F51°F43°F2.3"
      December28°F41°F34°F2.5"

      Walla Walla 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.
      IndexWalla WallaWashingtonNational
      Air quality index233642
      Pollution index697,9424,541,8502,726,193

      Walla Walla air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality318
      Days with moderate air quality47
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Walla Walla air quality information

      PollutantTotal
      Arsenic0.020%
      Benzene0.004%
      Carbon Tetrachloride0.001%
      Lead0.010%
      Mercury0.010%

      Average monthly Walla Walla temperature with heat index

      Walla Walla monthly precipitation with daily maximum

      Walla Walla monthly snow depth with daily maximum

      Walla Walla monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Waitsburg, WA1,1772354.0%
      Milton-Freewater, OR7,0442354.0%
      College Place, WA9,3112354.0%
      Umapine, OR5372354.0%
      Garrett, WA1,8152354.0%
      Walla Walla, WA32,9512354.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Copperas Cove, TX32,9604216.0%
      Springfield, VA32,960476.0%
      Baldwin, NY32,939512.0%
      Fort Erie, ON32,970n/a 
      Fair Lawn, NJ32,986512.0%
      Walla Walla, WA32,9512354.0%
      Source: The Walla Walla, 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.