TODAY DEC18
TEMPERATURE48
HUMIDITY89
PRESSURE101120
WIND COND.
  • 5242Wed30%
  • 5147Thu50%60%
  • 5447Fri20%20%
  • 5347Sat
  • 5048Sun
daynightWeather update from Everett Snohomish County at
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Weather Quick Facts

  • The highest monthly average temperature in Hat Island for August is 63.5 degrees
  • The lowest monthly average temperature in Hat Island for December is 39.4 degrees
  • The most monthly precipitation in Hat Island occurs in November with 5.7 inches
  • The air quality index in Hat Island is 7% worse than the national average
  • The pollution index in Hat Island is 479% worse than the national average

Compare Hat Island, WA Weather

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      Hat Island 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
      January36°F46°F41°F3.8"
      February37°F49°F42°F2.7"
      March39°F52°F45°F4.4"
      April42°F57°F48°F2.8"
      May47°F64°F54°F2.2"
      June51°F68°F58°F1.8"
      July55°F74°F63°F0.7"
      August56°F75°F63°F0.9"
      September53°F69°F59°F2.0"
      October47°F59°F52°F3.6"
      November40°F51°F45°F5.7"
      December35°F44°F39°F4.9"

      Hat Island 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.
      IndexHat IslandWashingtonNational
      Air quality index453642
      Pollution index15,778,9004,541,8502,726,193

      Hat Island air quality

      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

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.270%
      Carbon Tetrachloride0.040%
      Lead0.160%
      Mercury0.003%

      Average monthly Hat Island temperature with heat index

      Hat Island monthly precipitation with daily maximum

      Hat Island monthly snow depth with daily maximum

      Hat Island monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Arlington Heights, WA2,4632452.0%
      Lake Cassidy, WA2,8542452.0%
      Arlington, WA19,9472452.0%
      Lake Goodwin, WA4,6132452.0%
      Lochsloy, WA2,9912452.0%
      Hat Island, WA614510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Klukwan, AK612060.0%
      Jennette, AR614510.0%
      Yucca, AZ611374.0%
      Mount Hebron, CA612942.0%
      Rodriguez Camp, CA616734.0%
      Hat Island, WA614510.0%
      Source: The Hat Island, 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.