TODAY SEP20
TEMPERATURE68
HUMIDITY64
PRESSURE
WIND COND.241
  • 9361Thu
  • 9263Fri
  • 9463Sat
  • 9462Sun
  • 9162Mon
daynightWeather update from EW7809 Rialto at
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Bloomington 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
January44°F70°F56°F1.6"
February45°F72°F57°F1.2"
March47°F75°F60°F0.7"
April50°F78°F63°F0.5"
May55°F82°F66°F0.2"
June59°F89°F72°F0.0"
July65°F94°F77°F0.2"
August65°F95°F78°F0.1"
September63°F94°F76°F0.2"
October56°F85°F69°F0.2"
November49°F77°F62°F0.5"
December44°F69°F55°F1.9"

Did you know?

  • The highest monthly average temperature in Bloomington for August is 78 degrees.
  • The lowest monthly average temperature in Bloomington for December is 55 degrees.
  • The most monthly precipitation in Bloomington occurs in December with 1.9 inches.
  • The air quality index in Bloomington is 70% worse than the national average.
  • The pollution index in Bloomington is 523% worse than the national average.

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Compare Bloomington, CA Weather To Other Cities

Bloomington 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.
IndexBloomingtonCaliforniaNational
Air quality index855550
Pollution index31,575,30018,106,7265,066,862

Bloomington 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

Bloomington air quality information

PollutantTotal
Arsenic0.110%
Benzene0.260%
Carbon Tetrachloride0.020%
Lead0.350%
Mercury0.280%

Average monthly Bloomington temperature with heat index

Bloomington monthly precipitation with daily maximum

Bloomington monthly snow depth with daily maximum

Bloomington monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Crestline, CA8,9008570%
Fontana, CA205,2288570%
Home Gardens, CA11,3838570%
Lytle Creek, CA1,0198570%
Norco, CA26,8098570%
Bloomington, CA23,3228570%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Vicksburg, MS23,3204216%
Copiague, NY23,327536%
Sachse, TX23,329548%
Wilmington, MA23,310476%
Hialeah Gardens, FL23,3514118%
Bloomington, CA23,3228570%
Source: The Bloomington, 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.