| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 69°F | 52°F | 1.0" |
| February | 42°F | 73°F | 56°F | 0.8" |
| March | 47°F | 80°F | 63°F | 0.5" |
| April | 52°F | 86°F | 69°F | 0.2" |
| May | 60°F | 93°F | 78°F | 0.1" |
| June | 71°F | 104°F | 88°F | 0.3" |
| July | 76°F | 101°F | 88°F | 3.3" |
| August | 74°F | 100°F | 86°F | 2.0" |
| September | 69°F | 96°F | 82°F | 1.5" |
| October | 58°F | 89°F | 73°F | 0.4" |
| November | 48°F | 79°F | 62°F | 0.4" |
| December | 39°F | 69°F | 52°F | 1.1" |
| Index | Marana | Arizona | National |
| Air quality index | 47 | 57 | 42 |
| Pollution index | 4,063,380 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 225 |
| Days with moderate air quality | 138 |
| 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. |
| Casas Adobes, AZ | 70,516 | 47 | 6.0% |
| Rillito, AZ | 0 | 47 | 6.0% |
| Nelson, AZ | 775 | 47 | 6.0% |
| Flowing Wells, AZ | 17,227 | 47 | 6.0% |
| Red Rock CDP (Apache County), AZ | 174 | 47 | 6.0% |
| Marana, AZ | 47,164 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Roseville, MI | 47,160 | 56 | 12.0% |
| Burleson, TX | 47,151 | 33 | 34.0% |
| East Honolulu, HI | 47,132 | 30 | 40.0% |
| Charlottesville, VA | 47,217 | 40 | 20.0% |
| Glenview, IL | 47,218 | 55 | 10.0% |
| Marana, AZ | 47,164 | 47 | 6.0% |
Here are the best places to live in Arizona
See the best places to live in Marana
These are the 10 cheapest cities in Arizona
Most Dangerous Cities In The US