TODAY MAR28
TEMPERATURE49
HUMIDITY71
PRESSURE100850
WIND COND.140 11.2
  • 5939Fri30%
  • 6440Sat
  • 6441Sun
  • 6544Mon
  • 6343Tue
daynightWeather update from Pearson Airfield at
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Weather Quick Facts

  • The highest monthly average temperature in Saintjohns for August is 69.5 degrees
  • The lowest monthly average temperature in Saintjohns for December is 39.9 degrees
  • The most monthly precipitation in Saintjohns occurs in November with 6.2 inches
  • The air quality index in Saintjohns is 10% better than the national average
  • The pollution index in Saintjohns is 19% worse than the national average

Compare Portland, OR Weather

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      Saintjohns 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
      January34°F48°F40°F4.9"
      February36°F53°F43°F3.4"
      March39°F58°F48°F4.8"
      April42°F63°F52°F3.0"
      May48°F71°F58°F2.8"
      June53°F76°F63°F1.7"
      July57°F84°F69°F0.5"
      August58°F85°F70°F0.5"
      September53°F78°F64°F1.8"
      October47°F66°F55°F3.7"
      November40°F55°F47°F6.2"
      December34°F47°F40°F6.2"

      Saintjohns 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.
      IndexSaintjohnsPortlandOregon
      Air quality index383832
      Pollution index3,247,5801,899,4107,156,356

      Saintjohns air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Saintjohns air quality information

      PollutantTotal
      Arsenic0.003%
      Benzene0.020%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.002%

      Average monthly Saintjohns temperature with heat index

      Saintjohns monthly precipitation with daily maximum

      Saintjohns monthly snow depth with daily maximum

      Saintjohns monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Duluth, WA1,2493824.0%
      Minnehaha, WA11,3873824.0%
      Vancouver, WA182,7923824.0%
      Gresham, OR110,4563824.0%
      Hockinson, WA6,1593824.0%
      Portland, OR650,3803824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Memphis, TN650,9104510.0%
      Oklahoma City, OK649,821484.0%
      Las Vegas, NV644,594548.0%
      Nashville, TN667,0704510.0%
      Detroit, MI672,3515612.0%
      Portland, OR650,3803824.0%
      Source: The Saintjohns, Portland, OR 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.