| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 39°F | 31°F | 5.4" |
| February | 22°F | 37°F | 29°F | 4.1" |
| March | 27°F | 44°F | 36°F | 8.8" |
| April | 38°F | 55°F | 46°F | 9.8" |
| May | 47°F | 63°F | 54°F | 6.0" |
| June | 57°F | 74°F | 65°F | 5.2" |
| July | 63°F | 79°F | 70°F | 3.0" |
| August | 63°F | 80°F | 71°F | 6.6" |
| September | 58°F | 74°F | 66°F | 4.4" |
| October | 50°F | 64°F | 56°F | 8.7" |
| November | 37°F | 53°F | 46°F | 7.4" |
| December | 28°F | 41°F | 34°F | 5.7" |
| Index | Newport | Rhode Island | National |
| Air quality index | 44 | 45 | 42 |
| Pollution index | 2,165,310 | 3,440,259 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 289 |
| Days with moderate air quality | 74 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.010% |
| Mercury | 0.003% |
| City | Population | Air Quality Index | National Avg. |
| Tiverton, RI | 7,996 | 44 | 12.0% |
| Wakefield-Peacedale, RI | 8,904 | 44 | 12.0% |
| North Westport, MA | 4,787 | 44 | 12.0% |
| Narragansett Pier, RI | 3,487 | 44 | 12.0% |
| Kingston, RI | 6,407 | 44 | 12.0% |
| Newport, RI | 24,697 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Crestview, FL | 24,687 | 31 | 38.0% |
| Westmont, IL | 24,677 | 55 | 10.0% |
| Wright, FL | 24,671 | 31 | 38.0% |
| Ives Estates, FL | 24,732 | 41 | 18.0% |
| Northdale, FL | 24,660 | 43 | 14.0% |
| Newport, RI | 24,697 | 44 | 12.0% |
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