TODAY OCT16
TEMPERATURE47
HUMIDITY19
PRESSURE
WIND COND.46 21
  • 6945Tue
  • 7044Wed
  • 7147Thu
  • 7449Fri
  • 7449Sat
daynightWeather update from SADDLEBACK at
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Sierra City 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"

Did you know?

  • The highest monthly average temperature in Sierra City for July is 71 degrees.
  • The lowest monthly average temperature in Sierra City for December is 39 degrees.
  • The most monthly precipitation in Sierra City occurs in December with 11.7 inches.
  • The air quality index in Sierra City is 11% better than the national average.
  • The pollution index in Sierra City is 426% worse than the national average.

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Sierra City 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.
IndexSierra CityCaliforniaNational
Air quality index445550
Pollution index26,667,30018,106,7265,066,862

Sierra City air quality information

MeasurementTotal
Days measured363
Days with good air quality238
Days with moderate air quality120
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Sierra City air quality information

PollutantTotal
Arsenic0.360%
Benzene0.250%
Carbon Tetrachloride0.100%
Lead0.250%
Mercury0.260%

Average monthly Sierra City temperature with heat index

Sierra City monthly precipitation with daily maximum

Sierra City monthly snow depth with daily maximum

Sierra City monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Blairsden, CA514412%
Downieville, CA2254412%
Graniteville, CA04412%
Sattley, CA604412%
Whitehawk, CA654412%
Sierra City, CA2044412%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Easton, MN2041864%
Carney, MI2044020%
Modoc, IN204365630%
Snoqualmie Pass, WA204492%
Elm Grove, OK2043726%
Sierra City, CA2044412%
Source: The Sierra City, 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.