| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 66°F | 51°F | 4.9" |
| February | 41°F | 71°F | 55°F | 2.3" |
| March | 47°F | 78°F | 62°F | 4.3" |
| April | 53°F | 86°F | 70°F | 1.8" |
| May | 61°F | 94°F | 78°F | 2.3" |
| June | 71°F | 104°F | 89°F | 6.7" |
| July | 80°F | 105°F | 92°F | 6.0" |
| August | 78°F | 103°F | 90°F | 5.5" |
| September | 72°F | 98°F | 85°F | 28.8" |
| October | 58°F | 88°F | 73°F | 1.1" |
| November | 47°F | 76°F | 61°F | 2.4" |
| December | 40°F | 64°F | 51°F | 3.6" |
| Index | Florence | Arizona | National |
| Air quality index | 74 | 57 | 42 |
| Pollution index | 4,063,380 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 50 |
| Days with moderate air quality | 261 |
| Days w/ poor A.Q. for sensitive groups | 42 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.004% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Cactus Forest, AZ | 705 | 47 | 6.0% |
| Blackwater, AZ | 1,740 | 74 | 48.0% |
| Queen Creek, AZ | 52,162 | 74 | 48.0% |
| Coolidge, AZ | 13,016 | 74 | 48.0% |
| San Tan Valley, AZ | 104,936 | 74 | 48.0% |
| Florence, AZ | 26,777 | 74 | 48.0% |
| City | Population | Air Quality Index | National Avg. |
| Hutto, TX | 26,778 | 44 | 12.0% |
| Prior Lake, MN | 26,775 | 46 | 8.0% |
| Winona, MN | 26,772 | 15 | 70.0% |
| Colleyville, TX | 26,766 | 51 | 2.0% |
| New Lenox, IL | 26,788 | 55 | 10.0% |
| Florence, AZ | 26,777 | 74 | 48.0% |
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