TODAY MAY07
TEMPERATURE63
HUMIDITY28
PRESSURE
WIND COND.251 12.9
  • 7139Sat
  • 7039Sun
  • 7242Mon
  • 8046Tue
  • 8148Wed
daynightWeather update from CASHMAN at

Key findings

  • The highest monthly average temperature in Greenhorn for July is 70.9 degrees
  • The lowest monthly average temperature in Greenhorn for December is 39.2 degrees
  • The most monthly precipitation in Greenhorn occurs in December with 11.7 inches
  • The air quality index in Greenhorn is 12% better than the national average
  • The pollution index in Greenhorn is 64% better than the national average

Compare Greenhorn, CA Weather

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      Greenhorn 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°F49°F41°F7.8"
      February35°F47°F40°F8.4"
      March36°F49°F41°F10.1"
      April38°F54°F45°F5.7"
      May46°F62°F53°F3.7"
      June55°F71°F62°F1.4"
      July64°F79°F71°F0.1"
      August63°F79°F70°F0.1"
      September58°F74°F65°F1.4"
      October48°F63°F54°F4.8"
      November40°F53°F46°F7.3"
      December34°F46°F39°F11.7"

      Greenhorn 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.
      IndexGreenhornCaliforniaNational
      Air quality index445550
      Pollution index1,799,83018,106,7265,066,862

      Greenhorn air quality information

      MeasurementTotal
      Days measured361
      Days with good air quality273
      Days with moderate air quality83
      Days w/ poor A.Q. for sensitive groups5
      Days with unhealthy air quality0

      Greenhorn air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.004%

      Average monthly Greenhorn temperature with heat index

      Greenhorn monthly precipitation with daily maximum

      Greenhorn monthly snow depth with daily maximum

      Greenhorn monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Cromberg, CA1164412%
      Iron Horse, CA3324412%
      Plumas Eureka, CA3374412%
      Blairsden, CA514412%
      Delleker, CA6594412%
      Greenhorn, CA1994412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Hyannis, NE1991962%
      Franklin, AR1993628%
      Brogan, OR1993628%
      Refton, PA1994510%
      Randlett, UT199492%
      Greenhorn, CA1994412%
      Source: The Greenhorn, 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.