TODAY MAR19
TEMPERATURE40
HUMIDITY89
PRESSURE101690
WIND COND.
  • 7746Tue
  • 7248Wed
  • 6745Thu
  • 6646Fri30%60%
  • 6241Sat
daynightWeather update from Tri-Cities Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Pasco for July is 76.9 degrees
  • The lowest monthly average temperature in Pasco for December is 32.3 degrees
  • The most monthly precipitation in Pasco occurs in December with 1.1 inches
  • The air quality index in Pasco is 12% better than the national average
  • The pollution index in Pasco is 74% better than the national average

Compare Pasco, WA Weather

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      Pasco 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
      January27°F42°F34°F1.0"
      February29°F51°F38°F0.6"
      March34°F61°F47°F0.8"
      April38°F68°F53°F0.6"
      May45°F79°F62°F0.9"
      June53°F85°F69°F0.8"
      July58°F95°F77°F0.2"
      August56°F93°F74°F0.2"
      September47°F83°F64°F0.3"
      October40°F67°F52°F0.8"
      November32°F52°F41°F0.8"
      December25°F41°F32°F1.1"

      Pasco 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.
      IndexPascoWashingtonNational
      Air quality index373642
      Pollution index697,9424,541,8502,726,193

      Pasco air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality303
      Days with moderate air quality62
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Pasco air quality information

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

      Average monthly Pasco temperature with heat index

      Pasco monthly precipitation with daily maximum

      Pasco monthly snow depth with daily maximum

      Pasco monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      West Richland, WA14,8423726.0%
      Burbank, WA3,5223726.0%
      Finley, WA5,8583726.0%
      Richland, WA57,3533726.0%
      Kennewick, WA82,6333726.0%
      Pasco, WA74,2663726.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Sault Ste. Marie, ON74,249n/a 
      Wood Buffalo, AB74,298n/a 
      Centreville, VA74,230476.0%
      Jacksonville, NC74,3134216.0%
      Bolingbrook, IL74,3195510.0%
      Pasco, WA74,2663726.0%
      Source: The Pasco, 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.