TODAY MAY17
TEMPERATURE84
HUMIDITY25
PRESSURE29.87
WIND COND.4
  • 8548Mon
  • 8646Tue
  • 8044Wed
  • 7545Thu
  • 7846Fri
daynightWeather update from Merced / Castle Air Force Base at

Key findings

  • The highest monthly average temperature in McSwain for July is 80.2 degrees
  • The lowest monthly average temperature in McSwain for January is 43.2 degrees
  • The most monthly precipitation in McSwain occurs in January with 5.3 inches
  • The air quality index in McSwain is 3% better than the national average
  • The pollution index in McSwain is 3% worse than the national average

Compare McSwain, CA Weather

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      McSwain 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°F54°F43°F5.3"
      February40°F62°F50°F4.4"
      March44°F71°F56°F3.7"
      April44°F74°F59°F3.5"
      May52°F84°F67°F2.7"
      June55°F89°F72°F0.3"
      July63°F97°F80°F0.1"
      August61°F97°F79°F0.0"
      September54°F87°F69°F3.9"
      October48°F79°F62°F2.1"
      November41°F69°F54°F1.2"
      December38°F56°F46°F2.5"

      McSwain 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.
      IndexMcSwainCaliforniaNational
      Air quality index485550
      Pollution index5,213,36018,106,7265,066,862

      McSwain air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality213
      Days with moderate air quality145
      Days w/ poor A.Q. for sensitive groups7
      Days with unhealthy air quality0

      McSwain air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.090%
      Carbon Tetrachloride0.000%
      Lead0.040%
      Mercury0.060%

      Average monthly McSwain temperature with heat index

      McSwain monthly precipitation with daily maximum

      McSwain monthly snow depth with daily maximum

      McSwain monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Ballico, CA318484%
      Snelling, CA131484%
      Atwater, CA28,906484%
      Franklin CDP (Sacramento County), CA106484%
      Cressey, CA331484%
      McSwain, CA4,397484%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Perryville, MD4,397468%
      Mauston, WI4,3983530%
      Mount Pleasant, PA4,3953628%
      Sergeant Bluff, IA4,3993530%
      Greenville, KY4,4014314%
      McSwain, CA4,397484%
      Source: The McSwain, CA 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.