TODAY MAR07
TEMPERATURE41
HUMIDITY81
PRESSURE30.06
WIND COND.180 16.6
  • 6836Sun
  • 6747Mon
  • 7145Tue
  • 5433Wed50%
  • 5229Thu
daynightWeather update from Le Mars, Le Mars Municipal Airport at

Key findings

  • The highest monthly average temperature in Merrill for July is 76 degrees
  • The lowest monthly average temperature in Merrill for January is 21 degrees
  • The most monthly precipitation in Merrill occurs in August with 5.6 inches
  • The air quality index in Merrill is 30% better than the national average
  • The pollution index in Merrill is 86% better than the national average

Compare Merrill, IA Weather

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      Merrill 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
      January10°F33°F21°F0.7"
      February13°F38°F24°F0.8"
      March26°F53°F38°F1.5"
      April37°F66°F51°F3.5"
      May48°F77°F62°F4.2"
      June59°F86°F72°F4.9"
      July63°F89°F76°F3.5"
      August60°F86°F73°F5.6"
      September51°F81°F65°F3.1"
      October38°F68°F52°F3.0"
      November25°F53°F38°F1.1"
      December13°F36°F24°F1.7"

      Merrill 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.
      IndexMerrillIowaNational
      Air quality index353950
      Pollution index731,1451,643,8365,066,862

      Merrill 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

      Merrill air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.002%
      Lead0.002%
      Mercury0.000%

      Average monthly Merrill temperature with heat index

      Merrill monthly precipitation with daily maximum

      Merrill monthly snow depth with daily maximum

      Merrill monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Remsen, IA1,8243530%
      Hinton, IA8093530%
      Chatsworth, IA823530%
      Struble, IA1113530%
      Kingsley, IA1,4363530%
      Merrill, IA8293530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Forest Hill, LA8293040%
      Great Bend, PA8293824%
      Indian Lake, TX8294412%
      Bantam, CT8293726%
      Norwood Court, MO829548%
      Merrill, IA8293530%
      Source: The Merrill, 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.