TODAY MAY15
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 7259Sun60%60%
  • 7361Mon50%60%
  • 7562Tue70%70%
  • 8264Wed
  • 8363Thu
daynightWeather update from Carmi Municipal Airport at

Key findings

  • The highest monthly average temperature in New Haven for July is 76.5 degrees
  • The lowest monthly average temperature in New Haven for January is 33.5 degrees
  • The most monthly precipitation in New Haven occurs in April with 6.1 inches
  • The air quality index in New Haven is 10% better than the national average
  • The pollution index in New Haven is 11% better than the national average

Compare New Haven, IL Weather

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      New Haven 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
      January26°F43°F34°F2.0"
      February28°F46°F36°F2.7"
      March38°F59°F47°F3.6"
      April48°F71°F58°F6.1"
      May57°F78°F67°F4.7"
      June66°F88°F76°F3.8"
      July67°F88°F76°F5.7"
      August65°F87°F75°F2.8"
      September57°F82°F68°F3.2"
      October46°F71°F57°F4.2"
      November36°F57°F46°F4.1"
      December30°F46°F37°F2.7"

      New Haven 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.
      IndexNew HavenIllinoisNational
      Air quality index454150
      Pollution index4,489,3403,347,2955,066,862

      New Haven air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality244
      Days with moderate air quality111
      Days w/ poor A.Q. for sensitive groups10
      Days with unhealthy air quality0

      New Haven air quality information

      PollutantTotal
      Arsenic0.080%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.020%
      Mercury0.050%

      Average monthly New Haven temperature with heat index

      New Haven monthly precipitation with daily maximum

      New Haven monthly snow depth with daily maximum

      New Haven monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Enfield, IL5334314%
      Norris City, IL1,3014314%
      Junction, IL1144510%
      Old Shawneetown, IL1304510%
      Shawneetown, IL1,3404510%
      New Haven, IL3824510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Bay View Gardens, IL3824118%
      Ute, IA3823530%
      Akeley, MN3822942%
      Stanardsville, VA3824020%
      Arenzville, IL3824020%
      New Haven, IL3824510%
      Source: The New Haven, 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.