| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 48°F | 70°F | 58°F | 3.5" |
| February | 50°F | 70°F | 59°F | 2.9" |
| March | 52°F | 72°F | 61°F | 1.5" |
| April | 55°F | 74°F | 63°F | 0.7" |
| May | 58°F | 75°F | 65°F | 0.5" |
| June | 61°F | 78°F | 68°F | 0.0" |
| July | 65°F | 83°F | 72°F | 0.0" |
| August | 65°F | 84°F | 73°F | 0.0" |
| September | 64°F | 85°F | 72°F | 0.3" |
| October | 60°F | 81°F | 69°F | 0.7" |
| November | 54°F | 75°F | 63°F | 0.8" |
| December | 48°F | 69°F | 57°F | 2.8" |
| Index | Florence-Graham | California | National |
| Air quality index | 72 | 55 | 50 |
| Pollution index | 139,490,000 | 18,106,726 | 5,066,862 |
| 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 | 0.200% |
| Benzene | 0.950% |
| Carbon Tetrachloride | 0.080% |
| Lead | 1.320% |
| Mercury | 0.440% |
| City, State | Population | Air Quality Index | National Avg. |
| Gardena, CA | 59,898 | 72 | 44% |
| Westmont, CA | 32,147 | 72 | 44% |
| Bell Gardens, CA | 42,805 | 72 | 44% |
| Downey, CA | 113,223 | 72 | 44% |
| La Palma, CA | 15,834 | 72 | 44% |
| Florence-Graham, CA | 63,390 | 72 | 44% |
| City, State | Population | Air Quality Index | National Avg. |
| Madera, CA | 63,398 | 50 | = 100 |
| Montebello, CA | 63,416 | 72 | 44% |
| Santa Cruz, CA | 63,310 | 35 | 30% |
| Cedar Park, TX | 63,551 | 44 | 12% |
| Eden Prairie, MN | 63,206 | 46 | 8% |
| Florence-Graham, CA | 63,390 | 72 | 44% |
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