TODAY MAY18
TEMPERATURE63
HUMIDITY77
PRESSURE29.96
WIND COND.120 13
  • 7562Wed30%60%
  • 7863Thu30%50%
  • 8065Fri30%
  • 8463Sat30%
  • 8264Sun30%40%
daynightWeather update from Quentin Aanenson Field Airport at

Key findings

  • The highest monthly average temperature in Larchwood for July is 74.7 degrees
  • The lowest monthly average temperature in Larchwood for January is 18 degrees
  • The most monthly precipitation in Larchwood occurs in June with 5.2 inches
  • The air quality index in Larchwood is 28% better than the national average
  • The pollution index in Larchwood is 51% better than the national average

Compare Larchwood, IA Weather

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      Larchwood 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
      January8°F29°F18°F0.6"
      February10°F34°F21°F0.9"
      March24°F48°F35°F1.3"
      April35°F62°F48°F3.0"
      May45°F73°F59°F3.9"
      June57°F82°F70°F5.2"
      July61°F87°F75°F3.2"
      August59°F84°F71°F4.4"
      September51°F78°F64°F3.2"
      October38°F64°F50°F3.1"
      November24°F49°F36°F1.0"
      December11°F32°F21°F1.4"

      Larchwood 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.
      IndexLarchwoodIowaNational
      Air quality index363950
      Pollution index2,464,5701,643,8365,066,862

      Larchwood air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality321
      Days with moderate air quality43
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Larchwood air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.030%
      Carbon Tetrachloride0.010%
      Lead0.020%
      Mercury0.001%

      Average monthly Larchwood temperature with heat index

      Larchwood monthly precipitation with daily maximum

      Larchwood monthly snow depth with daily maximum

      Larchwood monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Alvord, IA2363628%
      Rock Rapids, IA2,5693628%
      Steen, MN2283628%
      Pine Lakes Addition, SD3053628%
      Canton, SD3,3063628%
      Larchwood, IA8653628%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sterrett, AL865536%
      Rimersburg, PA8653824%
      Faith, NC8654020%
      Arena, WI8653530%
      Blue Mounds, WI8653922%
      Larchwood, IA8653628%
      Source: The Larchwood, 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.