TODAY APR02
TEMPERATURE28
HUMIDITY96
PRESSURE30.01
WIND COND.
  • 4024Thu30%20%
  • 4426Fri
  • 5034Sat20%40%
  • 5233Sun60%30%
  • 5330Mon
daynightWeather update from Grant County Regional Airport at
How would you rate the weather in John Day?
Write a review to give others more information about this area.
How would you rate the air quality in John Day?
Write a review to give others more information about this area.

John Day 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
January28°F43°F34°F1.8"
February30°F47°F38°F1.0"
March34°F54°F42°F1.4"
April36°F59°F46°F1.7"
May42°F68°F54°F2.7"
June49°F77°F62°F2.4"
July56°F90°F73°F2.0"
August55°F88°F71°F2.1"
September48°F80°F63°F1.7"
October41°F64°F51°F2.1"
November33°F50°F40°F1.4"
December26°F40°F32°F1.2"

Did you know?

  • The highest monthly average temperature in John Day for July is 73 degrees.
  • The lowest monthly average temperature in John Day for December is 32 degrees.
  • The most monthly precipitation in John Day occurs in May with 2.7 inches.
  • The air quality index in John Day is 34% better than the national average.
  • The pollution index in John Day is 32% better than the national average.

Compare John Day, OR Weather To Other Cities

      vs

      John Day air quality index & pollution index

      m->air_qu[$ndxs[0]]; $r1 =& $this->m->air_qu[$ndxs[1]]; $r0 =& $this->m->air_qu[$ndxs[2]]; echo ''; $r2 =& $this->m->air_po[$ndxs[0]]; $r1 =& $this->m->air_po[$ndxs[1]]; $r0 =& $this->m->air_po[$ndxs[2]]; echo ''; ?>
      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexJohn DayOregonNational
      Air quality index',number_format( $r2->med_aqi ),'',number_format( $r1->med_aqi ),'',number_format( $r0->med_aqi ),'
      Pollution index',number_format( $r2->sum188 ),'',number_format( $r1->sum188 ),'',number_format( $r0->sum188 ),'

      John Day air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality275
      Days with moderate air quality85
      Days w/ poor A.Q. for sensitive groups5
      Days with unhealthy air quality

      John Day air quality information

      PollutantTotal
      Arsenic0.003%
      Benzene0.070%
      Carbon Tetrachloride0.010%
      Lead0.004%
      Mercury0.002%

      Average monthly John Day temperature with heat index

      John Day monthly precipitation with daily maximum

      John Day monthly snow depth with daily maximum

      John Day monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Prairie City, OR8683334%
      Canyon City, OR8053334%
      Mount Vernon, OR6013334%
      John Day, OR1,7213334%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Harwich Port, MA1,7213334%
      Bayou L'Ourse, LA1,7213432%
      Marble Hill, MO1,7213628%
      Le Grand, CA1,721548%
      Mexico, NY1,7203236%
      John Day, OR1,7213334%
      Source: The John Day, 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.