TODAY JUN06
TEMPERATURE88
HUMIDITY59
PRESSURE29.97
WIND COND.150 10.3
  • 9172Sun
  • 9170Mon
  • 8157Tue50%70%
  • 7758Wed30%
  • 7756Thu
daynightWeather update from Creston at
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Diagonal 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
January17°F33°F24°F2.8"
February20°F37°F27°F3.3"
March33°F55°F43°F3.3"
April42°F63°F51°F6.4"
May53°F74°F63°F7.9"
June63°F82°F72°F9.5"
July66°F87°F76°F3.7"
August67°F87°F76°F10.2"
September57°F79°F67°F7.1"
October46°F66°F55°F5.5"
November32°F52°F41°F3.2"
December18°F33°F25°F3.4"

Did you know?

  • The highest monthly average temperature in Diagonal for July is 76 degrees.
  • The lowest monthly average temperature in Diagonal for January is 24 degrees.
  • The most monthly precipitation in Diagonal occurs in August with 10.2 inches.
  • The air quality index in Diagonal is 18% better than the national average.
  • The pollution index in Diagonal is 73% better than the national average.

Compare Diagonal, IA Weather To Other Cities

      vs

      Diagonal 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.
      IndexDiagonalIowaNational
      Air quality index413950
      Pollution index1,369,8901,643,8365,066,862

      Diagonal air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality267
      Days with moderate air quality98
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Diagonal air quality information

      PollutantTotal
      Arsenic0.002%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.000%
      Mercury0.000%

      Average monthly Diagonal temperature with heat index

      Diagonal monthly precipitation with daily maximum

      Diagonal monthly snow depth with daily maximum

      Diagonal monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Shannon City, IA544118%
      Ellston, IA364118%
      Mount Ayr, IA1,9584118%
      Sun Valley Lake, IA2244118%
      Afton, IA9674118%
      Diagonal, IA3194118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Morgan's Point, TX319524%
      Amboy, IN3193236%
      Newcomb, NM3194216%
      Scott, OH319476%
      Montgomery, MI3193824%
      Diagonal, IA3194118%
      Source: The Diagonal, 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.