TODAY APR23
TEMPERATURE57°F
HUMIDITY63%
PRESSURE30.00 inHg
WIND COND.0° 0 mph
  • 8552Tue
  • 8351Wed
  • 8251Thu
  • 7951Fri
  • 7651Sat
daynightWeather update from Riverside Municipal Airport, on 23 Apr 7:05 am PDT

La Sierra 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
January24°F85°F53°F1.6"
February30°F88°F55°F1.8"
March31°F93°F56°F0.4"
April39°F97°F59°F0.6"
May46°F97°F65°F0.1"
June49°F104°F71°F0.0"
July55°F113°F79°Fn/a
August55°F103°F76°Fn/a
September49°F103°F73°F0.0"
October41°F102°F67°F0.3"
November35°F94°F62°F0.1"
December27°F86°F54°F0.2"

Did you know?

  • The highest monthly average temperature in La Sierra for July is 79 degrees.
  • The lowest monthly average temperature in La Sierra for January is 53 degrees.
  • The most monthly precipitation in La Sierra occurs in February with 1.8 inches.
  • The air quality index in La Sierra is 70% worse than the national average.
  • The pollution index in La Sierra is 349% worse than the national average.

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Compare Riverside, CA Weather To Other Cities

La Sierra 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.
IndexLa SierraRiversideCalifornia
Air quality index858555
Pollution index22,790,90022,790,90018,106,726

La Sierra air quality information

MeasurementTotal
Days measured365
Days with good air quality24
Days with moderate air quality211
Days w/ poor A.Q. for sensitive groups102
Days with unhealthy air quality25

La Sierra air quality information

PollutantTotal
Arsenic0.060%
Benzene0.190%
Carbon Tetrachloride0.010%
Lead0.220%
Mercury0.230%

Average monthly La Sierra temperature with heat index

La Sierra monthly precipitation with daily maximum

La Sierra monthly snow depth with daily maximum

La Sierra monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Claremont, CA35,8278570%
Eastvale, CA58,2178570%
Good Hope, CA9,4718570%
Jurupa Valley, CA100,7378570%
Meadowbrook, CA2,7828570%
Riverside, CA318,6788570%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Corpus Christi, TX320,0503922%
St. Louis, MO316,0306020%
Lexington-Fayette, KY311,5294216%
Pittsburgh, PA305,3055612%
Santa Ana, CA333,6058570%
Riverside, CA318,6788570%
Source: The La Sierra, Riverside, 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.