TODAY NOV21
TEMPERATURE31
HUMIDITY90
PRESSURE
WIND COND.
  • 4028Fri100%100%
  • 3618Sat90%20%
  • 3422Sun20%40%
  • 3523Mon70%50%
  • 3524Tue60%40%
daynightWeather update from OR7 SB at Sumpter MP 25.07 at
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Weather Quick Facts

  • The highest monthly average temperature in Sumpter for July is 67.7 degrees
  • The lowest monthly average temperature in Sumpter for December is 25 degrees
  • The most monthly precipitation in Sumpter occurs in May with 1.6 inches
  • The air quality index in Sumpter is 52% better than the national average
  • The pollution index in Sumpter is 27% worse than the national average

Compare Sumpter, OR Weather

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      Sumpter 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
      January17°F34°F25°F0.6"
      February22°F42°F32°F0.6"
      March26°F52°F38°F0.9"
      April29°F59°F44°F0.8"
      May36°F69°F52°F1.6"
      June42°F76°F59°F1.4"
      July47°F88°F68°F0.5"
      August44°F88°F66°F0.5"
      September37°F78°F57°F0.4"
      October30°F62°F45°F0.8"
      November24°F46°F34°F0.7"
      December16°F34°F25°F1.0"

      Sumpter 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.
      IndexSumpterOregonNational
      Air quality index203242
      Pollution index3,459,5407,156,3562,726,193

      Sumpter air quality

      MeasurementTotal
      Days measured365
      Days with good air quality344
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Sumpter temperature with heat index

      Sumpter monthly precipitation with daily maximum

      Sumpter monthly snow depth with daily maximum

      Sumpter monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Granite, OR232060.0%
      Greenhorn, OR02060.0%
      Haines, OR2672060.0%
      Sumpter, OR2452060.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Knobel, AR2452648.0%
      Kite, GA245476.0%
      Montour, IA2453922.0%
      Otwell, IN245688.0%
      Mize, MS2453530.0%
      Sumpter, OR2452060.0%
      Source: The Sumpter, 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.