TODAY NOV22
TEMPERATURE36
HUMIDITY75
PRESSURE100710
WIND COND.
  • 5040Fri
  • 5936Sat
  • 6338Sun
  • 6750Mon
  • 6838Tue
daynightWeather update from Franklin County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Castalia for July is 79 degrees
  • The lowest monthly average temperature in Castalia for January is 41.5 degrees
  • The most monthly precipitation in Castalia occurs in September with 4.8 inches
  • The air quality index in Castalia is 14% better than the national average
  • The pollution index in Castalia is 9% worse than the national average

Compare Castalia, NC Weather

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      Castalia 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
      January31°F53°F41°F2.9"
      February32°F56°F43°F2.7"
      March39°F65°F51°F3.6"
      April49°F75°F61°F3.8"
      May57°F81°F68°F3.6"
      June65°F89°F77°F4.2"
      July69°F91°F79°F3.9"
      August68°F90°F78°F4.0"
      September62°F84°F72°F4.8"
      October50°F74°F61°F3.4"
      November39°F64°F50°F2.9"
      December35°F58°F45°F3.7"

      Castalia 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.
      IndexCastaliaNorth CarolinaNational
      Air quality index363542
      Pollution index2,959,8802,789,5382,726,193

      Castalia air quality

      MeasurementTotal
      Days measured363
      Days with good air quality325
      Days with moderate air quality38
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.040%
      Carbon Tetrachloride0.004%
      Lead0.010%
      Mercury0.000%

      Average monthly Castalia temperature with heat index

      Castalia monthly precipitation with daily maximum

      Castalia monthly snow depth with daily maximum

      Castalia monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Rocky Mount, NC54,3303628.0%
      Nashville, NC5,5213628.0%
      Dortches, NC9783628.0%
      Sharpsburg, NC1,4183628.0%
      Spring Hope, NC1,4593628.0%
      Castalia, NC2763628.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Olsburg, KS2763236.0%
      Des Arc, MO276548.0%
      Henderson Point, MS2764216.0%
      Edmore, ND2763334.0%
      Pilger, NE2763530.0%
      Castalia, NC2763628.0%
      Source: The Castalia, NC 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.