TODAY NOV21
TEMPERATURE31
HUMIDITY89
PRESSURE100750
WIND COND.260 24.1
  • 4436Fri20%
  • 4633Sat
  • 5347Sun30%
  • 5529Mon40%50%
  • 4026Tue
daynightWeather update from Lafayette, Purdue University Airport at
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Weather Quick Facts

  • The highest monthly average temperature in West Lafayette for July is 74.2 degrees
  • The lowest monthly average temperature in West Lafayette for January is 27.2 degrees
  • The most monthly precipitation in West Lafayette occurs in June with 5.8 inches
  • The air quality index in West Lafayette is equal to the national average
  • The pollution index in West Lafayette is 75% better than the national average

Compare West Lafayette, IN Weather

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      West Lafayette 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
      January19°F36°F27°F2.6"
      February20°F39°F29°F2.0"
      March32°F53°F42°F2.7"
      April42°F66°F53°F4.3"
      May51°F75°F63°F4.4"
      June61°F84°F72°F5.8"
      July64°F85°F74°F4.8"
      August62°F85°F73°F3.6"
      September55°F79°F66°F3.2"
      October44°F67°F55°F3.3"
      November33°F53°F43°F3.1"
      December24°F40°F31°F3.1"

      West Lafayette 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.
      IndexWest LafayetteIndianaNational
      Air quality index425642
      Pollution index680,4922,719,4532,726,193

      West Lafayette air quality

      MeasurementTotal
      Days measured365
      Days with good air quality276
      Days with moderate air quality89
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly West Lafayette temperature with heat index

      West Lafayette monthly precipitation with daily maximum

      West Lafayette monthly snow depth with daily maximum

      West Lafayette monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Battle Ground, IN1,7964216.0%
      Delphi, IN2,9794216.0%
      Mulberry, IN1,3194216.0%
      West Point, IN984216.0%
      Brookston, IN1,3984216.0%
      West Lafayette, IN49,6684216.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Mishawaka, IN49,6754216.0%
      North Bethesda, MD49,719476.0%
      Azusa, CA49,5847244.0%
      Poway, CA49,7806428.0%
      Kannapolis, NC49,7884020.0%
      West Lafayette, IN49,6684216.0%
      Source: The West Lafayette, IN 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.