TODAY APR19
TEMPERATURE43°F
HUMIDITYNA%
PRESSURENA inHg
WIND COND.289° 1.2 mph
  • 6143Today
  • 6044Fri70%
  • 5740Sat50% | 30%
  • 5741Sun
  • 6544Mon
daynightWeather update from SEATTLE DUWAMISH EAST MARGINAL, on 19 Apr 4:00 am PDT

Pioneer Square 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
January25°F57°F42°Fn/a
February29°F59°F44°Fn/a
March31°F64°F46°Fn/a
April36°F77°F50°Fn/a
May43°F87°F56°Fn/a
June47°F87°F59°Fn/a
July53°F91°F64°Fn/a
August53°F84°F63°Fn/a
September46°F85°F60°Fn/a
October36°F73°F54°Fn/a
November32°F64°F48°Fn/a
December22°F62°F42°Fn/a

Did you know?

  • The highest monthly average temperature in Pioneer Square for July is 64 degrees.
  • The lowest monthly average temperature in Pioneer Square for December is 42 degrees.
  • The most monthly precipitation in Pioneer Square occurs in January with 0 inches.
  • The air quality index in Pioneer Square is 1% better than the national average.
  • The pollution index in Pioneer Square is 78% better than the national average.

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Compare Seattle, WA Weather To Other Cities

Pioneer Square 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.
IndexPioneer SquareSeattleWashington
Air quality index494936
Pollution index1,081,4301,081,4308,596,989

Pioneer Square air quality information

MeasurementTotal
Days measured365
Days with good air quality195
Days with moderate air quality162
Days w/ poor A.Q. for sensitive groups8
Days with unhealthy air quality

Pioneer Square air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Pioneer Square temperature with heat index

Pioneer Square monthly precipitation with daily maximum

Pioneer Square monthly snow depth with daily maximum

Pioneer Square monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bremerton, WA39,3881766%
Burley, WA1,8351766%
East Port Orchard, WA5,3011766%
Keyport, WA4421766%
Lofall, WA2,2571766%
Seattle, WA668,849492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Denver, CO663,303548%
El Paso, TX678,058512%
Washington, DC659,009492%
Boston, MA658,279476%
Memphis, TN655,8574412%
Seattle, WA668,849492%
Source: The Pioneer Square, Seattle, 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.