TODAY MAY12
TEMPERATURE53
HUMIDITY86
PRESSURE29.91
WIND COND.350 7.6
  • 8050Wed
  • 7751Thu
  • 7451Fri
  • 7752Sat
  • 7552Sun
daynightWeather update from Concord, Buchanan Field at

Key findings

  • The highest monthly average temperature in Martinez for July is 70.8 degrees
  • The lowest monthly average temperature in Martinez for January is 48.3 degrees
  • The most monthly precipitation in Martinez occurs in December with 3.1 inches
  • The air quality index in Martinez is 20% better than the national average
  • The pollution index in Martinez is 170% worse than the national average

Compare Martinez, CA Weather

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      Martinez 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
      January39°F60°F48°F2.5"
      February42°F65°F53°F2.6"
      March46°F69°F56°F2.7"
      April48°F74°F60°F1.5"
      May52°F79°F63°F0.1"
      June56°F87°F69°F0.4"
      July58°F90°F71°F0.0"
      August58°F88°F70°F0.0"
      September57°F88°F70°F0.1"
      October52°F80°F64°F0.7"
      November44°F67°F54°F1.6"
      December39°F60°F49°F3.1"

      Martinez 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.
      IndexMartinezCaliforniaNational
      Air quality index405550
      Pollution index13,698,50018,106,7265,066,862

      Martinez air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality290
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Martinez air quality information

      PollutantTotal
      Arsenic0.040%
      Benzene0.110%
      Carbon Tetrachloride0.330%
      Lead0.070%
      Mercury0.120%

      Average monthly Martinez temperature with heat index

      Martinez monthly precipitation with daily maximum

      Martinez monthly snow depth with daily maximum

      Martinez monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Alamo, CA16,0784020%
      Contra Costa Centre, CA6,1904020%
      Pacheco, CA4,0594020%
      San Miguel CDP (San Luis Obispo County), CA2,6964020%
      Blackhawk, CA9,4684020%
      Martinez, CA37,5444020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Oviedo, FL37,5453726%
      Delaware, OH37,554468%
      Spanish Fork, UT37,565468%
      Park Ridge, IL37,5675510%
      Spartanburg, SC37,5704412%
      Martinez, CA37,5444020%
      Source: The Martinez, 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.