TODAY DEC13
TEMPERATURE36
HUMIDITY65
PRESSURE
WIND COND.309 2
  • 5842Thu
  • 5643Fri
  • 5942Sat
  • 5945Sun
  • 5441Mon30%
daynightWeather update from DW9138 Red Rock Cyn SP at

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Johannesburg 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
January31°F62°F45°F0.8"
February35°F67°F51°F0.5"
March42°F74°F58°F0.2"
April47°F80°F64°F0.0"
May55°F89°F73°F0.0"
June64°F100°F84°F0.0"
July71°F106°F90°F0.0"
August68°F104°F87°F0.1"
September60°F96°F79°F0.2"
October49°F83°F66°F0.1"
November38°F71°F54°F0.2"
December30°F59°F44°F0.5"

Did you know?

  • The highest monthly average temperature in Johannesburg for July is 90 degrees.
  • The lowest monthly average temperature in Johannesburg for December is 44 degrees.
  • The most monthly precipitation in Johannesburg occurs in January with 0.8 inches.
  • The air quality index in Johannesburg is 58% worse than the national average.
  • The pollution index in Johannesburg is 316% worse than the national average.

Real Estate Listings In Johannesburg

Compare Johannesburg, CA Weather To Other Cities

Johannesburg 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.
IndexJohannesburgCaliforniaNational
Air quality index795550
Pollution index21,095,50018,106,7265,066,862

Johannesburg air quality information

MeasurementTotal
Days measured365
Days with good air quality69
Days with moderate air quality196
Days w/ poor A.Q. for sensitive groups78
Days with unhealthy air quality21

Johannesburg air quality information

PollutantTotal
Arsenic1.700%
Benzene0.350%
Carbon Tetrachloride0.004%
Lead0.580%
Mercury1.550%

Average monthly Johannesburg temperature with heat index

Johannesburg monthly precipitation with daily maximum

Johannesburg monthly snow depth with daily maximum

Johannesburg monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Randsburg, CA1567958%
Johannesburg, CA1277958%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Villa del Sol, TX1274118%
Farmington, KY1273628%
Brock, NE1273432%
South Gorin, MO1274020%
Mutual, OH1274216%
Johannesburg, CA1277958%
Source: The Johannesburg, 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.