TODAY MAY12
TEMPERATURE63
HUMIDITY
PRESSURE30.43
WIND COND. 9.4
  • 6843Thu
  • 6847Fri20%
  • 6650Sat20%
  • 7155Sun
  • 7354Mon
daynightWeather update from Janesville-Rock County at

Key findings

  • The highest monthly average temperature in Roscoe for July is 74 degrees
  • The lowest monthly average temperature in Roscoe for January is 22.5 degrees
  • The most monthly precipitation in Roscoe occurs in August with 5.3 inches
  • The air quality index in Roscoe is 16% better than the national average
  • The pollution index in Roscoe is 88% worse than the national average

Compare Roscoe, IL Weather

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      Roscoe 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
      January14°F32°F23°F1.7"
      February15°F35°F25°F1.6"
      March27°F50°F38°F2.7"
      April37°F64°F50°F4.3"
      May47°F75°F61°F3.4"
      June58°F84°F71°F5.1"
      July62°F86°F74°F4.9"
      August61°F84°F72°F5.3"
      September53°F79°F65°F2.8"
      October42°F66°F53°F2.9"
      November30°F51°F40°F2.4"
      December18°F36°F27°F2.5"

      Roscoe 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.
      IndexRoscoeIllinoisNational
      Air quality index424150
      Pollution index9,518,9303,347,2955,066,862

      Roscoe air quality information

      MeasurementTotal
      Days measured341
      Days with good air quality240
      Days with moderate air quality100
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Roscoe air quality information

      PollutantTotal
      Arsenic0.005%
      Benzene0.090%
      Carbon Tetrachloride0.020%
      Lead0.160%
      Mercury0.090%

      Average monthly Roscoe temperature with heat index

      Roscoe monthly precipitation with daily maximum

      Roscoe monthly snow depth with daily maximum

      Roscoe monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Clinton, WI2,2063824%
      South Beloit, IL7,5893824%
      Hanover, WI1773824%
      Sharon, WI1,7443824%
      Orfordville, WI1,3113824%
      Roscoe, IL10,6664216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Durham, NH10,6663726%
      Vidalia, GA10,6742648%
      Gulf Gate Estates, FL10,6763824%
      Darby, PA10,677512%
      Annapolis Neck, MD10,649468%
      Roscoe, IL10,6664216%
      Source: The Roscoe, IL 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.