TODAY SEP18
TEMPERATURE61
HUMIDITY80
PRESSURE101110
WIND COND.86
  • 6751Wed20%
  • 6651Thu30%
  • 6448Fri20%
  • 6552Sat
  • 6653Sun
daynightWeather update from DW2629 Snohomish at
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Weather Quick Facts

  • The highest monthly average temperature in Cathcart for July is 62.9 degrees
  • The lowest monthly average temperature in Cathcart for December is 39.5 degrees
  • The most monthly precipitation in Cathcart occurs in December with 8.6 inches
  • The air quality index in Cathcart is 7% worse than the national average
  • The pollution index in Cathcart is 1491% worse than the national average

Compare Cathcart, WA Weather

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      Cathcart 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°F45°F40°F2.5"
      February36°F50°F42°F2.8"
      March41°F55°F47°F3.5"
      April43°F58°F49°F3.5"
      May48°F65°F55°F3.0"
      June51°F66°F57°F2.2"
      July55°F74°F63°F2.0"
      August55°F74°F62°F1.7"
      September50°F66°F57°F2.8"
      October46°F59°F51°F3.4"
      November38°F48°F43°F4.8"
      December35°F45°F39°F8.6"

      Cathcart 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.
      IndexCathcartWashingtonNational
      Air quality index453642
      Pollution index43,367,4004,541,8502,726,193

      Cathcart air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality236
      Days with moderate air quality127
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Cathcart air quality information

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

      Average monthly Cathcart temperature with heat index

      Cathcart monthly precipitation with daily maximum

      Cathcart monthly snow depth with daily maximum

      Cathcart monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Lake Cassidy, WA2,8542452.0%
      Langley, WA1,2012452.0%
      Marysville, WA69,6292452.0%
      Lake Bosworth, WA1,0712452.0%
      Lochsloy, WA2,9912452.0%
      Cathcart, WA2,2784510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Marked Tree, AR2,2774510.0%
      North York, PA2,2774118.0%
      East Quincy, CA2,279468.0%
      Upton, MA2,2794020.0%
      Central Manitoulin, ON2,279n/a 
      Cathcart, WA2,2784510.0%
      Source: The Cathcart, 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.