TODAY MAR02
TEMPERATURE60
HUMIDITY13
PRESSURE
WIND COND.50 16.6
  • 6833Wed50%
  • 5527Thu
  • 6335Fri
  • 6736Sat
  • 6835Sun
daynightWeather update from St. Johns, St. Johns Industrial Airpark at

Key findings

  • The highest monthly average temperature in St. Johns for July is 76 degrees
  • The lowest monthly average temperature in St. Johns for January is 33 degrees
  • The most monthly precipitation in St. Johns occurs in August with 2.1 inches
  • The air quality index in St. Johns is 12% better than the national average
  • The pollution index in St. Johns is 83% better than the national average

Compare St. Johns, AZ Weather

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      St. Johns 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
      January18°F50°F33°F0.5"
      February23°F57°F40°F0.2"
      March29°F65°F47°F0.3"
      April35°F72°F54°F0.2"
      May43°F80°F63°F0.4"
      June54°F92°F75°F0.2"
      July62°F92°F76°F1.8"
      August59°F89°F73°F2.1"
      September51°F84°F67°F1.0"
      October38°F74°F56°F0.6"
      November27°F63°F44°F0.4"
      December21°F50°F34°F0.5"

      St. Johns 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.
      IndexSt. JohnsArizonaNational
      Air quality index445750
      Pollution index841,2555,576,4945,066,862

      St. Johns air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality294
      Days with moderate air quality70
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      St. Johns air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.000%
      Mercury0.000%

      Average monthly St. Johns temperature with heat index

      St. Johns monthly precipitation with daily maximum

      St. Johns monthly snow depth with daily maximum

      St. Johns monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Concho, AZ1814412%
      St. Johns CDP, AZ7264412%
      St. Johns, AZ3,5424412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Teague, TX3,5424118%
      Loyalhanna, PA3,5423922%
      Benson, NC3,542468%
      Hesston, KS3,5414020%
      Agua Dulce, CA3,5417244%
      St. Johns, AZ3,5424412%
      Source: The St. Johns, AZ 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.