| 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 | Stanfield | 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. |
| Ak-Chin Village, AZ | 1,202 | 74 | 48.0% |
| Chuichu, AZ | 280 | 74 | 48.0% |
| Casa Grande, AZ | 57,318 | 74 | 48.0% |
| Maricopa, AZ | 50,358 | 74 | 48.0% |
| Vaiva Vo, AZ | 0 | 74 | 48.0% |
| Stanfield, AZ | 489 | 74 | 48.0% |
| City | Population | Air Quality Index | National Avg. |
| Tull, AR | 489 | 45 | 10.0% |
| Johnson Village, CO | 489 | 16 | 68.0% |
| Cobbtown, GA | 489 | 39 | 22.0% |
| La Harpe, KS | 489 | 22 | 56.0% |
| Cawood, KY | 489 | 39 | 22.0% |
| Stanfield, AZ | 489 | 74 | 48.0% |
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