TODAY DEC22
TEMPERATURE50
HUMIDITY71
PRESSURE102240
WIND COND.350 11.2
  • 6850Sun
  • 7456Mon
  • 7658Tue
  • 776230%
  • 7862Thu
daynightWeather update from Tampa, Tampa International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Keystone for August is 83 degrees
  • The lowest monthly average temperature in Keystone for January is 61.2 degrees
  • The most monthly precipitation in Keystone occurs in August with 9.7 inches
  • The air quality index in Keystone is 2% worse than the national average
  • The pollution index in Keystone is 114% worse than the national average

Compare Keystone, FL Weather

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      Keystone 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
      January51°F73°F61°F2.6"
      February52°F74°F63°F2.8"
      March57°F79°F67°F2.9"
      April64°F84°F73°F2.9"
      May69°F88°F78°F3.3"
      June74°F90°F82°F8.5"
      July76°F91°F83°F8.5"
      August76°F92°F83°F9.7"
      September75°F91°F81°F6.3"
      October68°F86°F76°F2.3"
      November59°F80°F68°F1.6"
      December56°F76°F65°F1.4"

      Keystone 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.
      IndexKeystoneFloridaNational
      Air quality index433542
      Pollution index5,828,3807,570,7852,726,193

      Keystone air quality

      MeasurementTotal
      Days measured365
      Days with good air quality267
      Days with moderate air quality92
      Days w/ poor A.Q. for sensitive groups6
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.004%
      Benzene0.080%
      Carbon Tetrachloride0.010%
      Lead0.050%
      Mercury0.001%

      Average monthly Keystone temperature with heat index

      Keystone monthly precipitation with daily maximum

      Keystone monthly snow depth with daily maximum

      Keystone monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Hudson, FL11,2434314.0%
      Jasmine Estates, FL22,5724314.0%
      Safety Harbor, FL17,8934314.0%
      Citrus Park, FL27,3334314.0%
      Lutz, FL22,8714314.0%
      Keystone, FL25,3774314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Bay Point, CA25,3784020.0%
      Thetford Mines, QC25,383n/a 
      Kingsville, TX25,3673040.0%
      Tarpon Springs, FL25,3894314.0%
      Woodstock, IL25,3914216.0%
      Keystone, FL25,3774314.0%
      Source: The Keystone, FL 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.