TODAY JUN19
TEMPERATURE62
HUMIDITY72
PRESSURE30.11
WIND COND.280 5.8
  • 7557Wed
  • 6754Thu
  • 6554Fri20%
  • 6754Sat
  • 6752Sun
daynightWeather update from Whidbey Island, Naval Air Station at

Port Townsend Average Weather

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
January31°F51°F41°Fn/a
February32°F56°F42°Fn/a
March29°F53°F42°Fn/a
April37°F64°F48°Fn/a
May43°F69°F52°Fn/a
June47°F82°F58°Fn/a
July50°F81°F61°Fn/a
August50°F79°F59°Fn/a
September46°F73°F58°Fn/a
October41°F63°F52°Fn/a
November38°F57°F47°Fn/a
December21°F54°F40°Fn/a

Did you know?

  • The highest monthly average temperature in Port Townsend for July is 61 degrees.
  • The lowest monthly average temperature in Port Townsend for December is 40 degrees.
  • The most monthly precipitation in Port Townsend occurs in January with 0 inches.
  • The air quality index in Port Townsend is 37% better than the national average.
  • The pollution index in Port Townsend is 67% better than the national average.

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Compare Port Townsend, WA Weather To Other Cities

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 index313650
Pollution index1,626,1608,596,9895,066,862

Port Townsend air quality information

MeasurementTotal
Days measured365
Days with good air quality344
Days with moderate air quality21
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

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

City, StatePopulationAir Quality IndexNational Avg.
Coupeville, WA2,1043138%
Oak Harbor, WA22,5443138%
Freeland, WA1,6423138%
Camano, WA15,9683138%
Cavalero, WA5,1193138%
Port Townsend, WA9,2863138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Pecos, TX9,2853040%
Brewer, ME9,2843138%
Sugar Grove, IL9,288198%
Rockingham, NC9,2893726%
Greenwood, AR9,2963530%
Port Townsend, WA9,2863138%
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.