TODAY JUN22
TEMPERATURE63
HUMIDITY65
PRESSURE29.92
WIND COND.180 3.4
  • 9666Fri
  • 9868Sat
  • 8858Sun
  • 8356Mon
  • 8355Tue
daynightWeather update from Santa Rosa, Santa Rosa Sonoma County Airport at

Angwin 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
January20°F82°F46°F5.1"
February27°F79°F49°F6.0"
March28°F85°F51°F3.7"
April32°F93°F54°F2.3"
May37°F102°F60°F1.8"
June40°F102°F64°F0.2"
July41°F108°F65°F0.0"
August43°F103°F64°F0.0"
September39°F101°F62°F0.1"
October35°F91°F58°F1.7"
November28°F89°F52°F2.4"
December21°F70°F45°F7.2"

Did you know?

  • The highest monthly average temperature in Angwin for July is 65 degrees.
  • The lowest monthly average temperature in Angwin for December is 45 degrees.
  • The most monthly precipitation in Angwin occurs in December with 7.2 inches.
  • The air quality index in Angwin is 29% better than the national average.
  • The pollution index in Angwin is 92% better than the national average.

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Compare Angwin, CA Weather To Other Cities

Angwin 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.
IndexAngwinCaliforniaNational
Air quality index355550
Pollution index360,23818,106,7265,066,862

Angwin air quality information

MeasurementTotal
Days measured365
Days with good air quality296
Days with moderate air quality69
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Angwin air quality information

PollutantTotal
Arsenic0.002%
Benzene0.004%
Carbon Tetrachloride0.000%
Lead0.002%
Mercury0.000%

Average monthly Angwin temperature with heat index

Angwin monthly precipitation with daily maximum

Angwin monthly snow depth with daily maximum

Angwin monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Middletown, CA7713138%
Deer Park, CA1,0923530%
Santa Rosa, CA173,1653530%
Kenwood, CA1,2273530%
Roseland, CA5,8593530%
Angwin, CA3,5053530%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Pretty Bayou, FL3,5053726%
Peaceful Valley, WA3,5032746%
Newcastle, WY3,5034314%
Marion, AL3,5073040%
Forest Oaks, NC3,5023824%
Angwin, CA3,5053530%
Source: The Angwin, 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.