| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 66°F | 48°F | 0.8" |
| February | 35°F | 70°F | 52°F | 0.3" |
| March | 40°F | 76°F | 58°F | 0.4" |
| April | 45°F | 81°F | 63°F | 0.2" |
| May | 51°F | 88°F | 71°F | 0.1" |
| June | 63°F | 98°F | 81°F | 0.4" |
| July | 68°F | 94°F | 79°F | 5.0" |
| August | 65°F | 93°F | 77°F | 3.5" |
| September | 60°F | 90°F | 74°F | 2.4" |
| October | 50°F | 84°F | 66°F | 0.6" |
| November | 41°F | 76°F | 57°F | 0.3" |
| December | 34°F | 66°F | 48°F | 0.9" |
| Index | Tubac | Arizona | National |
| Air quality index | 31 | 57 | 42 |
| Pollution index | 4,063,380 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 362 |
| Days with good air quality | 280 |
| Days with moderate air quality | 80 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| 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. |
| Arivaca Junction, AZ | 1,072 | 31 | 38.0% |
| Rio Rico, AZ | 19,948 | 31 | 38.0% |
| Tumacacori-Carmen, AZ | 99 | 31 | 38.0% |
| Amado, AZ | 34 | 31 | 38.0% |
| Elephant Head, AZ | 558 | 47 | 6.0% |
| Tubac, AZ | 1,223 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Bolinas, CA | 1,223 | 43 | 14.0% |
| Crawford, GA | 1,223 | 44 | 12.0% |
| Branchville, SC | 1,223 | 29 | 42.0% |
| Maidstone, SK | 1,223 | n/a | |
| Pioneer, CA | 1,224 | 39 | 22.0% |
| Tubac, AZ | 1,223 | 31 | 38.0% |
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