TODAY DEC22
TEMPERATURE37
HUMIDITY76
PRESSURE102570
WIND COND.160 11.2
  • 6155Mon20%
  • 6348Tue60%
  • 625220%
  • 6446Thu60%20%
  • 6344Fri20%
daynightWeather update from Sherman/Denison, Grayson County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Knollwood for August is 84.4 degrees
  • The lowest monthly average temperature in Knollwood for January is 43.5 degrees
  • The most monthly precipitation in Knollwood occurs in May with 5.6 inches
  • The air quality index in Knollwood is 672% worse than the national average
  • The pollution index in Knollwood is 226% worse than the national average

Compare Knollwood, TX Weather

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      Knollwood 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
      January34°F56°F44°F2.5"
      February38°F60°F47°F2.1"
      March47°F69°F56°F2.9"
      April54°F76°F64°F4.7"
      May61°F82°F71°F5.6"
      June71°F91°F81°F4.5"
      July74°F95°F84°F3.1"
      August74°F96°F84°F3.1"
      September67°F89°F77°F2.9"
      October56°F79°F66°F3.1"
      November46°F67°F56°F2.9"
      December37°F56°F45°F2.6"

      Knollwood 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.
      IndexKnollwoodTexasNational
      Air quality index3255242
      Pollution index8,884,1902,009,3002,726,193

      Knollwood air quality

      MeasurementTotal
      Days measured138
      Days with good air quality120
      Days with moderate air quality17
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Air quality details

      PollutantTotal
      Arsenic0.030%
      Benzene0.070%
      Carbon Tetrachloride0.040%
      Lead0.260%
      Mercury0.020%

      Average monthly Knollwood temperature with heat index

      Knollwood monthly precipitation with daily maximum

      Knollwood monthly snow depth with daily maximum

      Knollwood monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Achille, OK376325550.0%
      Denison, TX24,851325550.0%
      Dorchester, TX39325550.0%
      Bells, TX1,824325550.0%
      Southmayd, TX1,510325550.0%
      Knollwood, TX405325550.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Pinedale, AZ4054412.0%
      Ila, GA4054412.0%
      Sale City, GA4054020.0%
      Plainfield, IA4053922.0%
      Good Hope, IL4052942.0%
      Knollwood, TX405325550.0%
      Source: The Knollwood, TX 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.