TODAY DEC27
TEMPERATURE43
HUMIDITY57
PRESSURE102133.48
WIND COND.160 5.5
  • 5142Sat30%30%
  • 5438Sun100%80%
  • 4431Mon70%
  • 4534Tue90%
  • 382680%70%
daynightWeather update from Cattaraugus County-Olean Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Olean for July is 66.8 degrees
  • The lowest monthly average temperature in Olean for February is 22.8 degrees
  • The most monthly precipitation in Olean occurs in June with 5.3 inches
  • The air quality index in Olean is 79% better than the national average
  • The pollution index in Olean is 6% worse than the national average

Compare Olean, NY Weather

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      Olean 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
      January15°F31°F23°F2.8"
      February14°F32°F23°F2.1"
      March23°F43°F32°F3.0"
      April33°F58°F45°F3.5"
      May43°F68°F55°F4.4"
      June51°F75°F63°F5.3"
      July55°F79°F67°F4.7"
      August53°F77°F65°F5.0"
      September47°F71°F59°F3.4"
      October39°F59°F48°F4.9"
      November29°F47°F38°F3.0"
      December22°F35°F28°F3.5"

      Olean 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.
      IndexOleanNew YorkNational
      Air quality index94342
      Pollution index2,885,1406,179,2752,726,193

      Olean air quality

      MeasurementTotal
      Days measured365
      Days with good air quality357
      Days with moderate air quality6
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.004%
      Benzene0.030%
      Carbon Tetrachloride0.005%
      Lead0.010%
      Mercury0.002%

      Average monthly Olean temperature with heat index

      Olean monthly precipitation with daily maximum

      Olean monthly snow depth with daily maximum

      Olean monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Weston Mills, NY1,297982.0%
      Limestone, NY458982.0%
      Bradford, PA8,284982.0%
      Foster Brook, PA1,115982.0%
      Lewis Run, PA732982.0%
      Olean, NY13,580982.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Jasper, AL13,584536.0%
      Roselle Park, NJ13,574512.0%
      South Glengarry, ON13,573n/a 
      Iona, FL13,5883628.0%
      Oatfield, OR13,5883824.0%
      Olean, NY13,580982.0%
      Source: The Olean, NY 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.