TODAY MAR08
TEMPERATURE46
HUMIDITY76
PRESSURE30.25
WIND COND.150 16.6
  • 6343Mon
  • 6652Tue
  • 6648Wed60%40%
  • 5635Thu60%30%
  • 4931Fri
daynightWeather update from Clinton, Clinton Municipal Airport at

Key findings

  • The highest monthly average temperature in Hillsdale for July is 73 degrees
  • The lowest monthly average temperature in Hillsdale for January is 21 degrees
  • The most monthly precipitation in Hillsdale occurs in August with 9.8 inches
  • The air quality index in Hillsdale is 16% better than the national average
  • The pollution index in Hillsdale is 65% better than the national average

Compare Hillsdale, IL Weather

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      Hillsdale 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
      January13°F31°F21°F2.9"
      February15°F33°F23°F2.6"
      March29°F49°F38°F4.2"
      April39°F62°F50°F6.5"
      May51°F74°F61°F6.2"
      June61°F82°F71°F7.9"
      July64°F84°F73°F6.6"
      August61°F82°F71°F9.8"
      September53°F76°F64°F6.2"
      October42°F64°F52°F6.1"
      November30°F50°F39°F4.3"
      December19°F34°F26°F4.0"

      Hillsdale 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.
      IndexHillsdaleIllinoisNational
      Air quality index424150
      Pollution index1,753,5903,347,2955,066,862

      Hillsdale air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality268
      Days with moderate air quality96
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Hillsdale air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.070%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.001%

      Average monthly Hillsdale temperature with heat index

      Hillsdale monthly precipitation with daily maximum

      Hillsdale monthly snow depth with daily maximum

      Hillsdale monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Low Moor, IA2494216%
      Erie, IL1,5454216%
      Albany, IL9894216%
      Hooppole, IL3164216%
      McCausland, IA3264216%
      Hillsdale, IL5574216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Coleridge, NE5573530%
      Pineville, WV557295490%
      Wapella, IL5574412%
      Grand Mound, IA557468%
      Hyde Park, VT5573726%
      Hillsdale, IL5574216%
      Source: The Hillsdale, 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.