TODAY APR25
TEMPERATURE50
HUMIDITY93
PRESSURE100950
WIND COND.120 14.8
  • 5747Fri90%50%
  • 5546Sat80%70%
  • 5542Sun90%
  • 5442Mon
  • 5643Tue
daynightWeather update from Whidbey Island Naval Air Station - Ault Field at
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Weather Quick Facts

  • The highest monthly average temperature in Port Townsend for August is 59.4 degrees
  • The lowest monthly average temperature in Port Townsend for December is 40.2 degrees
  • The most monthly precipitation in Port Townsend occurs in November with 3.5 inches
  • The air quality index in Port Townsend is 43% better than the national average
  • The pollution index in Port Townsend is 40% better than the national average

Compare Port Townsend, WA Weather

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      Port Townsend 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°F2.9"
      February35°F49°F41°F1.9"
      March38°F52°F45°F2.3"
      April41°F55°F47°F2.0"
      May46°F60°F52°F1.8"
      June50°F63°F55°F1.8"
      July53°F68°F59°F0.7"
      August53°F68°F59°F1.5"
      September49°F65°F56°F1.4"
      October45°F58°F51°F1.8"
      November40°F51°F45°F3.5"
      December35°F46°F40°F2.2"

      Port Townsend 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.
      IndexPort TownsendWashingtonNational
      Air quality index243642
      Pollution index1,626,1604,541,8502,726,193

      Port Townsend air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality361
      Days with moderate air quality4
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Port Townsend air quality information

      PollutantTotal
      Arsenic0.005%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.020%
      Mercury0.001%

      Average monthly Port Townsend temperature with heat index

      Port Townsend monthly precipitation with daily maximum

      Port Townsend monthly snow depth with daily maximum

      Port Townsend monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Oak Harbor, WA23,3582452.0%
      Cavalero, WA5,3952452.0%
      Freeland, WA1,8832452.0%
      Coupeville, WA1,8502452.0%
      Marrowstone, WA9432452.0%
      Port Townsend, WA9,7102452.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      North Bend, OR9,7081962.0%
      Safford, AZ9,707476.0%
      East Rutherford, NJ9,707512.0%
      Rio del Mar, CA9,7133530.0%
      Decatur, IN9,7004510.0%
      Port Townsend, WA9,7102452.0%
      Source: The Port Townsend, 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.