TODAY MAR09
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 3823Tue20%80%
  • 3518Wed90%50%
  • 3721Thu40%
  • 4323Fri
  • 4928Sat
daynightWeather update from Happy Isles at

Key findings

  • The highest monthly average temperature in Yosemite Valley for July is 67 degrees
  • The lowest monthly average temperature in Yosemite Valley for January is 28 degrees
  • The most monthly precipitation in Yosemite Valley occurs in January with 13 inches
  • The air quality index in Yosemite Valley is 22% better than the national average
  • The pollution index in Yosemite Valley is 78% better than the national average

Compare Yosemite Valley, CA Weather

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      Yosemite Valley 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
      January14°F44°F28°F13.0"
      February18°F46°F31°F0.6"
      March24°F53°F38°F1.5"
      April28°F59°F43°F1.5"
      May35°F66°F51°F1.8"
      June43°F77°F61°F7.0"
      July47°F83°F67°F1.6"
      August46°F82°F65°F0.7"
      September40°F76°F59°F1.1"
      October30°F65°F47°F4.7"
      November22°F54°F36°F4.9"
      December15°F45°F29°F4.1"

      Yosemite Valley 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.
      IndexYosemite ValleyCaliforniaNational
      Air quality index395550
      Pollution index1,108,38018,106,7265,066,862

      Yosemite Valley air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality331
      Days with moderate air quality33
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Yosemite Valley air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.000%

      Average monthly Yosemite Valley temperature with heat index

      Yosemite Valley monthly precipitation with daily maximum

      Yosemite Valley monthly snow depth with daily maximum

      Yosemite Valley monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      El Portal, CA4033922%
      Wawona, CA45350= 100
      Yosemite Valley, CA1,0003922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Crosby, ND1,0003432%
      Greensburg, KS1,0001570%
      Boothbay Harbor, ME1,0003628%
      Tumbling Shoals, AR1,0004510%
      Story, WY1,0003922%
      Yosemite Valley, CA1,0003922%
      Source: The Yosemite Valley, 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.