TODAY JUN25
TEMPERATURE72
HUMIDITY55
PRESSURE
WIND COND.298 7.4
  • 7456Tue
  • 7455Wed
  • 7255Thu
  • 7455Fri
  • 7355Sat
daynightWeather update from Thousand Oaks - Moorpark Rd at

Santa Rosa Valley Average Weather

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
January28°F88°F55°F3.0"
February33°F88°F55°F2.9"
March32°F94°F56°F1.0"
April37°F98°F58°F0.9"
May45°F94°F61°F0.3"
June50°F91°F65°F0.0"
July52°F91°F67°Fn/a
August52°F91°F67°F0.0"
September49°F100°F65°F0.1"
October43°F99°F63°F0.4"
November34°F96°F60°F0.2"
December31°F84°F53°F1.1"

Did you know?

  • The highest monthly average temperature in Santa Rosa Valley for July is 67 degrees.
  • The lowest monthly average temperature in Santa Rosa Valley for December is 53 degrees.
  • The most monthly precipitation in Santa Rosa Valley occurs in January with 3 inches.
  • The air quality index in Santa Rosa Valley is 3% better than the national average.
  • The pollution index in Santa Rosa Valley is 167% worse than the national average.

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Compare Santa Rosa Valley, CA Weather To Other Cities

Santa Rosa 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.
IndexSanta Rosa ValleyCaliforniaNational
Air quality index485550
Pollution index13,529,80018,106,7265,066,862

Santa Rosa Valley air quality information

MeasurementTotal
Days measured365
Days with good air quality208
Days with moderate air quality152
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Santa Rosa Valley air quality information

PollutantTotal
Arsenic0.150%
Benzene0.190%
Carbon Tetrachloride0.010%
Lead0.180%
Mercury0.070%

Average monthly Santa Rosa Valley temperature with heat index

Santa Rosa Valley monthly precipitation with daily maximum

Santa Rosa Valley monthly snow depth with daily maximum

Santa Rosa Valley monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Camarillo, CA66,630484%
Saticoy, CA1,287484%
Westlake Village, CA8,443484%
Casa Conejo, CA3,180484%
Lake Sherwood, CA1,651484%
Santa Rosa Valley, CA3,601484%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Peralta, NM3,601512%
Sneads Ferry, NC3,6013922%
Fairview, NC3,6024216%
King City, OR3,5993824%
Prestonsburg, KY3,6033824%
Santa Rosa Valley, CA3,601484%
Source: The Santa Rosa 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.