| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 40°F | 32°F | 3.1" |
| February | 23°F | 40°F | 31°F | 2.7" |
| March | 30°F | 47°F | 38°F | 4.2" |
| April | 39°F | 58°F | 48°F | 3.8" |
| May | 49°F | 67°F | 57°F | 4.1" |
| June | 58°F | 75°F | 66°F | 4.3" |
| July | 65°F | 82°F | 73°F | 3.7" |
| August | 62°F | 80°F | 71°F | 3.1" |
| September | 56°F | 75°F | 65°F | 3.6" |
| October | 46°F | 65°F | 55°F | 4.3" |
| November | 37°F | 55°F | 45°F | 3.1" |
| December | 29°F | 46°F | 37°F | 4.4" |
| Index | Carolina | Rhode Island | National |
| Air quality index | 37 | 45 | 42 |
| Pollution index | 2,960,790 | 3,440,259 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 323 |
| Days with moderate air quality | 34 |
| Days w/ poor A.Q. for sensitive groups | 7 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.005% |
| City | Population | Air Quality Index | National Avg. |
| Hope Valley, RI | 1,888 | 37 | 26.0% |
| Wyoming, RI | 233 | 37 | 26.0% |
| Charlestown, RI | 1,392 | 37 | 26.0% |
| Watch Hill, RI | 196 | 37 | 26.0% |
| Hopkinton, RI | 612 | 37 | 26.0% |
| Carolina, RI | 882 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Morven, GA | 882 | 35 | 30.0% |
| Arbon Valley, ID | 882 | 27 | 46.0% |
| Parks, LA | 882 | 41 | 18.0% |
| Harwick, PA | 882 | 56 | 12.0% |
| Frost, TX | 882 | 41 | 18.0% |
| Carolina, RI | 882 | 37 | 26.0% |
Here are the best places to live in Rhode Island
Most Dangerous Cities In The US
Most Dangerous States In The US
Check out the 10 safest cities in Rhode Island