Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 48°F | 67°F | 56°F | 8.9" |
February | 51°F | 68°F | 58°F | 7.7" |
March | 54°F | 70°F | 61°F | 2.5" |
April | 55°F | 70°F | 61°F | 3.7" |
May | 59°F | 73°F | 65°F | 1.5" |
June | 61°F | 73°F | 66°F | 0.0" |
July | 66°F | 79°F | 71°F | 0.0" |
August | 67°F | 80°F | 72°F | 0.0" |
September | 63°F | 78°F | 69°F | 4.9" |
October | 59°F | 77°F | 67°F | 4.0" |
November | 56°F | 74°F | 63°F | 2.7" |
December | 50°F | 68°F | 58°F | 3.4" |
Index | Willowbrook | California | National |
Air quality index | 72 | 55 | 42 |
Pollution index | 4,251,410 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 66 |
Days with moderate air quality | 208 |
Days w/ poor A.Q. for sensitive groups | 62 |
Days with unhealthy air quality | 28 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.100% |
Carbon Tetrachloride | 0.000% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
East Whittier, CA | 10,182 | 72 | 44.0% |
South Pasadena, CA | 25,478 | 72 | 44.0% |
Mayflower Village, CA | 5,687 | 72 | 44.0% |
San Gabriel, CA | 40,108 | 72 | 44.0% |
Temple City, CA | 35,699 | 72 | 44.0% |
Willowbrook, CA | 24,401 | 72 | 44.0% |
City | Population | Air Quality Index | National Avg. |
Inkster, MI | 24,398 | 56 | 12.0% |
Selma, CA | 24,405 | 56 | 12.0% |
Norfolk, NE | 24,410 | 35 | 30.0% |
Trotwood, OH | 24,410 | 47 | 6.0% |
Lodi, NJ | 24,389 | 51 | 2.0% |
Willowbrook, CA | 24,401 | 72 | 44.0% |