| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 22°F | 41°F | 31°F | 4.0" |
| February | 21°F | 42°F | 31°F | 3.8" |
| March | 28°F | 50°F | 39°F | 5.0" |
| April | 39°F | 63°F | 50°F | 4.7" |
| May | 48°F | 71°F | 59°F | 3.7" |
| June | 58°F | 80°F | 68°F | 4.8" |
| July | 65°F | 86°F | 75°F | 4.0" |
| August | 63°F | 84°F | 73°F | 3.6" |
| September | 56°F | 78°F | 66°F | 4.3" |
| October | 46°F | 67°F | 56°F | 5.9" |
| November | 36°F | 56°F | 45°F | 4.4" |
| December | 27°F | 46°F | 36°F | 5.2" |
| Index | Hope | Providence | Rhode Island |
| Air quality index | 44 | 44 | 45 |
| Pollution index | 8,312,000 | 8,312,000 | 3,440,259 |
| 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 | 0.010% |
| Benzene | 0.090% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.210% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| Ocean Grove, MA | 2,434 | 44 | 12.0% |
| Mansfield Center, MA | 8,043 | 44 | 12.0% |
| Chepachet, RI | 1,673 | 44 | 12.0% |
| Harrisville, RI | 1,284 | 44 | 12.0% |
| Warwick, RI | 81,043 | 44 | 12.0% |
| Providence, RI | 179,472 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Newport News, VA | 179,582 | 40 | 20.0% |
| Santa Rosa, CA | 178,391 | 34 | 32.0% |
| Ontario, CA | 178,194 | 89 | 78.0% |
| Rancho Cucamonga, CA | 178,060 | 89 | 78.0% |
| Sioux Falls, SD | 180,927 | 36 | 28.0% |
| Providence, RI | 179,472 | 44 | 12.0% |
Here are the best places to live in Rhode Island
Most Dangerous Cities In The US
Check out the 10 most dangerous cities in Rhode Island
These are the 10 cheapest cities in Rhode Island