TODAY DEC23
TEMPERATURE39
HUMIDITY45
PRESSURE
WIND COND.205 3.2
  • 4424Mon60%
  • 4524Tue80%
  • 3820
  • 3621Thu
  • 3722Fri
daynightWeather update from RUBY VALLEY at
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Weather Quick Facts

  • The highest monthly average temperature in Alder for July is 67.1 degrees
  • The lowest monthly average temperature in Alder for December is 20.1 degrees
  • The most monthly precipitation in Alder occurs in June with 2.2 inches
  • The air quality index in Alder is 52% better than the national average
  • The pollution index in Alder is 89% better than the national average

Compare Alder, MT Weather

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      Alder 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
      January14°F34°F23°F0.1"
      February18°F40°F27°F0.3"
      March23°F47°F33°F0.7"
      April29°F55°F40°F1.6"
      May37°F65°F50°F1.9"
      June43°F72°F57°F2.2"
      July50°F85°F67°F1.3"
      August47°F83°F64°F0.9"
      September40°F73°F55°F1.2"
      October32°F57°F42°F1.3"
      November23°F45°F33°F0.5"
      December11°F31°F20°F0.2"

      Alder 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.
      IndexAlderMontanaNational
      Air quality index203442
      Pollution index293,782834,4732,726,193

      Alder air quality

      MeasurementTotal
      Days measured363
      Days with good air quality319
      Days with moderate air quality44
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Alder temperature with heat index

      Alder monthly precipitation with daily maximum

      Alder monthly snow depth with daily maximum

      Alder monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Sheridan, MT8692060.0%
      Virginia City, MT1692550.0%
      Alder, MT932060.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Diomede, AK933824.0%
      Sun Valley, AZ934412.0%
      Glasgow, IL934020.0%
      Sims, IN933726.0%
      Highland Beach, MD93468.0%
      Alder, MT932060.0%
      Source: The Alder, MT 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.