TODAY APR18
TEMPERATURE53
HUMIDITY83
PRESSURE101120
WIND COND.150 25.9
  • 6546Thu20%
  • 6239Fri80%70%
  • 5131Sat
  • 5131Sun
  • 6036Mon
daynightWeather update from Wellsville, Wellsville Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Portville for July is 68.4 degrees
  • The lowest monthly average temperature in Portville for February is 23.6 degrees
  • The most monthly precipitation in Portville occurs in July with 4.3 inches
  • The air quality index in Portville is 17% better than the national average
  • The pollution index in Portville is 6% worse than the national average

Compare Portville, NY Weather

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      Portville 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
      January17°F32°F24°F2.1"
      February16°F32°F24°F1.9"
      March25°F43°F33°F2.5"
      April36°F58°F46°F3.1"
      May46°F69°F57°F3.5"
      June54°F75°F64°F4.2"
      July58°F79°F68°F4.3"
      August56°F77°F66°F3.9"
      September51°F71°F60°F3.5"
      October42°F60°F50°F4.3"
      November32°F48°F39°F2.2"
      December24°F37°F30°F3.1"

      Portville 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.
      IndexPortvilleNew YorkNational
      Air quality index354342
      Pollution index2,885,1406,179,2752,726,193

      Portville air quality information

      MeasurementTotal
      Days measured357
      Days with good air quality345
      Days with moderate air quality12
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Portville air quality information

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

      Average monthly Portville temperature with heat index

      Portville monthly precipitation with daily maximum

      Portville monthly snow depth with daily maximum

      Portville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Allegany, NY1,981982.0%
      St. Bonaventure, NY2,015982.0%
      Foster Brook, PA1,115982.0%
      Weston Mills, NY1,297982.0%
      Olean, NY13,580982.0%
      Portville, NY9433530.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Town Creek, AL9433726.0%
      Cascade-Chipita Park, CO9434510.0%
      Waldo, FL9433530.0%
      Dexter, GA9433824.0%
      Elk Run Heights, IA9433922.0%
      Portville, NY9433530.0%
      Source: The Portville, 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.