TODAY FEB28
TEMPERATURE34
HUMIDITY100
PRESSURE29.67
WIND COND.
  • 3521Sun
  • 3420Mon
  • 4930Tue
  • 5329Wed
  • 5429Thu
daynightWeather update from Carroll at

Key findings

  • The highest monthly average temperature in Ralston for July is 74 degrees
  • The lowest monthly average temperature in Ralston for January is 21 degrees
  • The most monthly precipitation in Ralston occurs in August with 2.2 inches
  • The air quality index in Ralston is 26% better than the national average
  • The pollution index in Ralston is 90% better than the national average

Compare Ralston, IA Weather

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      Ralston 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
      January12°F31°F21°F0.7"
      February15°F35°F24°F0.6"
      March29°F50°F38°F1.0"
      April40°F64°F51°F1.2"
      May50°F75°F62°F1.5"
      June61°F84°F72°F1.9"
      July63°F86°F74°F1.3"
      August61°F83°F71°F2.2"
      September53°F79°F65°F2.1"
      October41°F67°F53°F1.6"
      November30°F52°F39°F0.8"
      December18°F37°F26°F0.9"

      Ralston 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.
      IndexRalstonIowaNational
      Air quality index373950
      Pollution index517,6911,643,8365,066,862

      Ralston air quality information

      MeasurementTotal
      Days measured214
      Days with good air quality210
      Days with moderate air quality4
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Ralston air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.002%
      Mercury0.000%

      Average monthly Ralston temperature with heat index

      Ralston monthly precipitation with daily maximum

      Ralston monthly snow depth with daily maximum

      Ralston monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Bayard, IA4553726%
      Dedham, IA2563726%
      Jefferson, IA4,2073726%
      Carroll, IA9,9903726%
      Glidden, IA1,4223726%
      Ralston, IA783726%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Urbank, MN782942%
      Holliday, MO783824%
      Pageton, WV78295490%
      Big Lagoon, CA782746%
      Marrowbone, KY782550%
      Ralston, IA783726%
      Source: The Ralston, 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.