TODAY MAR19
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 7746Tue
  • 7546Wed
  • 7246Thu
  • 7149Fri
  • 6345Sat
daynightWeather update from Arroyo Seco at
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Weather Quick Facts

  • The highest monthly average temperature in Greenfield for August is 61.4 degrees
  • The lowest monthly average temperature in Greenfield for December is 49 degrees
  • The most monthly precipitation in Greenfield occurs in January with 2.9 inches
  • The air quality index in Greenfield is 12% better than the national average
  • The pollution index in Greenfield is 252% worse than the national average

Compare Greenfield, CA Weather

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      Greenfield 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
      January40°F62°F50°F2.9"
      February43°F63°F52°F2.9"
      March44°F65°F53°F2.5"
      April45°F66°F54°F1.8"
      May50°F68°F57°F0.5"
      June53°F70°F60°F0.1"
      July55°F71°F61°F0.0"
      August55°F72°F61°F0.1"
      September53°F74°F61°F0.2"
      October49°F73°F58°F0.7"
      November45°F69°F55°F0.9"
      December41°F61°F49°F2.4"

      Greenfield 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.
      IndexGreenfieldCaliforniaNational
      Air quality index375542
      Pollution index9,602,13010,473,1902,726,193

      Greenfield air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality330
      Days with moderate air quality34
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Greenfield air quality information

      PollutantTotal
      Arsenic0.070%
      Benzene0.190%
      Carbon Tetrachloride0.000%
      Lead0.080%
      Mercury0.070%

      Average monthly Greenfield temperature with heat index

      Greenfield monthly precipitation with daily maximum

      Greenfield monthly snow depth with daily maximum

      Greenfield monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      King City, CA13,8453726.0%
      Gonzales, CA8,3483726.0%
      Pine Canyon, CA2,9393726.0%
      Soledad, CA25,6673726.0%
      Greenfield CDP, CA4,5823726.0%
      Greenfield, CA17,5653726.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Paradise, CA17,560468.0%
      Glenvar Heights, FL17,5604118.0%
      Sunland Park, NM17,581536.0%
      Wantagh, NY17,548512.0%
      Manassas Park, VA17,548476.0%
      Greenfield, CA17,5653726.0%
      Source: The Greenfield, 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.