TODAY MAY16
TEMPERATURE46
HUMIDITY68
PRESSURE
WIND COND.43 14.5
  • 6547Sun30%40%
  • 6647Mon
  • 6643Tue
  • 5737Wed
  • 4934Thu
daynightWeather update from SADDLEBACK at

Key findings

  • The highest monthly average temperature in Little Grass Valley for July is 70.9 degrees
  • The lowest monthly average temperature in Little Grass Valley for December is 39.2 degrees
  • The most monthly precipitation in Little Grass Valley occurs in December with 11.7 inches
  • The air quality index in Little Grass Valley is 8% better than the national average
  • The pollution index in Little Grass Valley is 64% better than the national average

Compare Little Grass Valley, CA Weather

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      Little Grass 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
      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"

      Little Grass 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.
      IndexLittle Grass ValleyCaliforniaNational
      Air quality index465550
      Pollution index1,799,83018,106,7265,066,862

      Little Grass Valley air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality224
      Days with moderate air quality136
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality2

      Little Grass Valley air quality information

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

      Average monthly Little Grass Valley temperature with heat index

      Little Grass Valley monthly precipitation with daily maximum

      Little Grass Valley monthly snow depth with daily maximum

      Little Grass Valley monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Cromberg, CA1164412%
      Spring Garden, CA174412%
      Clipper Mills, CA1904412%
      Johnsville, CA04412%
      Downieville, CA2254412%
      Little Grass Valley, CA0468%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Oyehut, WA02060%
      Tolsona, AK03138%
      Sugarloaf Mountain Park, CA06734%
      Baker, MO02648%
      Cynthiana, OH03824%
      Little Grass Valley, CA0468%
      Source: The Little Grass 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.