TODAY MAY13
TEMPERATURE44
HUMIDITY53
PRESSURE30.37
WIND COND.190 16.6
  • 6847Thu
  • 5845Fri70%30%
  • 6848Sat
  • 6752Sun40%60%
  • 7352Mon
daynightWeather update from Spencer, Spencer Municipal Airport at

Key findings

  • The highest monthly average temperature in Spencer for July is 74.5 degrees
  • The lowest monthly average temperature in Spencer for December is 17.2 degrees
  • The most monthly precipitation in Spencer occurs in August with 7.9 inches
  • The air quality index in Spencer is 30% better than the national average
  • The pollution index in Spencer is 69% better than the national average

Compare Spencer, IA Weather

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      Spencer 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
      January9°F26°F17°F1.0"
      February13°F30°F21°F1.0"
      March27°F48°F36°F6.5"
      April37°F62°F49°F6.0"
      May51°F73°F61°F5.9"
      June61°F84°F72°F4.4"
      July63°F87°F75°F7.6"
      August61°F83°F71°F7.9"
      September54°F79°F65°F6.8"
      October41°F65°F52°F3.1"
      November25°F47°F35°F3.7"
      December9°F25°F17°F1.0"

      Spencer 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.
      IndexSpencerIowaNational
      Air quality index353950
      Pollution index1,563,5601,643,8365,066,862

      Spencer air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality322
      Days with moderate air quality42
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Spencer air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Spencer temperature with heat index

      Spencer monthly precipitation with daily maximum

      Spencer monthly snow depth with daily maximum

      Spencer monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Ruthven, IA7301570%
      Terril, IA3793236%
      Dickens, IA2043530%
      Everly, IA6243530%
      Gillett Grove, IA353530%
      Spencer, IA11,1723530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Westwood, NJ11,170512%
      Spearfish, SD11,1764412%
      Raymondville, TX11,1654216%
      Seymour, TN11,1644412%
      Pompton Lakes, NJ11,163512%
      Spencer, IA11,1723530%
      Source: The Spencer, IA 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.