Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 43°F | 66°F | 54°F | 11.6" |
February | 47°F | 67°F | 56°F | 9.6" |
March | 48°F | 74°F | 60°F | 2.1" |
April | 50°F | 76°F | 61°F | 4.1" |
May | 55°F | 81°F | 66°F | 4.8" |
June | 58°F | 86°F | 70°F | 0.1" |
July | 65°F | 94°F | 78°F | 0.2" |
August | 65°F | 95°F | 78°F | 2.3" |
September | 60°F | 88°F | 72°F | 2.1" |
October | 57°F | 82°F | 67°F | 4.3" |
November | 50°F | 77°F | 62°F | 7.7" |
December | 43°F | 67°F | 55°F | 3.3" |
Index | Fontana | California | National |
Air quality index | 89 | 55 | 42 |
Pollution index | 31,575,300 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 42 |
Days with moderate air quality | 178 |
Days w/ poor A.Q. for sensitive groups | 79 |
Days with unhealthy air quality | 58 |
Pollutant | Total |
Arsenic | 0.110% |
Benzene | 0.260% |
Carbon Tetrachloride | 0.020% |
Lead | 0.350% |
Mercury | 0.280% |
City | Population | Air Quality Index | National Avg. |
Bloomington, CA | 21,907 | 89 | 78.0% |
Jurupa Valley, CA | 106,646 | 89 | 78.0% |
Chino, CA | 89,170 | 89 | 78.0% |
Norco, CA | 27,021 | 89 | 78.0% |
Crestline, CA | 9,351 | 89 | 78.0% |
Fontana, CA | 212,704 | 89 | 78.0% |
City | Population | Air Quality Index | National Avg. |
Santa Clarita, CA | 212,519 | 72 | 44.0% |
Oakville, ON | 212,353 | n/a | |
Fayetteville, NC | 211,201 | 41 | 18.0% |
Birmingham, AL | 210,928 | 53 | 6.0% |
Modesto, CA | 214,485 | 49 | 2.0% |
Fontana, CA | 212,704 | 89 | 78.0% |