TODAY FEB27
TEMPERATURE34
HUMIDITY93
PRESSURE29.82
WIND COND.130 14.8
  • 4132Sat30%
  • 4019Sun
  • 3215Mon
  • 4128Tue
  • 4426Wed
daynightWeather update from Monticello Municipal at

Key findings

  • The highest monthly average temperature in Onslow for July is 72 degrees
  • The lowest monthly average temperature in Onslow for January is 19 degrees
  • The most monthly precipitation in Onslow occurs in July with 6.9 inches
  • The air quality index in Onslow is 22% better than the national average
  • The pollution index in Onslow is 89% better than the national average

Compare Onslow, IA Weather

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      Onslow 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°F29°F19°F1.4"
      February12°F32°F22°F1.9"
      March25°F47°F36°F2.3"
      April36°F62°F49°F4.9"
      May47°F72°F59°F4.5"
      June58°F81°F69°F5.3"
      July61°F84°F72°F6.9"
      August59°F81°F70°F4.2"
      September51°F76°F63°F3.2"
      October40°F63°F51°F3.4"
      November28°F49°F38°F2.2"
      December15°F33°F24°F2.5"

      Onslow 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.
      IndexOnslowIowaNational
      Air quality index393950
      Pollution index551,5541,643,8365,066,862

      Onslow air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality287
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Onslow air quality information

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

      Average monthly Onslow temperature with heat index

      Onslow monthly precipitation with daily maximum

      Onslow monthly snow depth with daily maximum

      Onslow monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Bernard, IA1272942%
      Cascade, IA1,9782942%
      Stanwood, IA5623530%
      Center Junction, IA793922%
      Mechanicsville, IA1,0523922%
      Onslow, IA2193922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Camp Sherman, OR2192060%
      Meno, OK2194020%
      Bureau Junction, IL2190100%
      Prichard, WV2194216%
      Branch, LA2194118%
      Onslow, IA2193922%
      Source: The Onslow, 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.