TODAY OCT31
TEMPERATURE72
HUMIDITY41
PRESSURE101830
WIND COND.340 14.8
  • 7564Fri40%
  • 7666Sat80%80%
  • 8068Sun60%80%
  • 7752Mon80%50%
  • 6647Tue20%
daynightWeather update from McKinney - McKinney National Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Princeton for August is 83.3 degrees
  • The lowest monthly average temperature in Princeton for January is 44 degrees
  • The most monthly precipitation in Princeton occurs in January with 11.6 inches
  • The air quality index in Princeton is 21% worse than the national average
  • The pollution index in Princeton is 73% better than the national average

Compare Princeton, TX Weather

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      Princeton 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
      January35°F54°F44°F11.6"
      February39°F60°F49°F2.6"
      March48°F70°F58°F6.5"
      April51°F73°F62°F5.8"
      May63°F81°F71°F8.0"
      June70°F90°F79°F11.0"
      July71°F92°F80°F4.1"
      August73°F96°F83°F1.9"
      September67°F91°F78°F4.9"
      October54°F80°F66°F6.8"
      November47°F70°F58°F4.2"
      December34°F60°F46°F5.3"

      Princeton 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.
      IndexPrincetonTexasNational
      Air quality index515242
      Pollution index723,8562,009,3002,726,193

      Princeton air quality

      MeasurementTotal
      Days measured365
      Days with good air quality181
      Days with moderate air quality155
      Days w/ poor A.Q. for sensitive groups28
      Days with unhealthy air quality1

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.003%
      Mercury0.000%

      Average monthly Princeton temperature with heat index

      Princeton monthly precipitation with daily maximum

      Princeton monthly snow depth with daily maximum

      Princeton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Lavon, TX3,504512.0%
      Plano, TX288,870512.0%
      Allen, TX104,040512.0%
      Lucas, TX8,137512.0%
      St. Paul CDP, TX594512.0%
      Princeton, TX12,208512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Harrison, WI12,2093726.0%
      Coldwater, MI12,2033824.0%
      Woodward, OK12,2131570.0%
      Fulshear, TX12,213524.0%
      Valencia West, AZ12,201476.0%
      Princeton, TX12,208512.0%
      Source: The Princeton, 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.