| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 12°F | 31°F | 21°F | 4.3" |
| February | 11°F | 32°F | 21°F | 3.9" |
| March | 18°F | 41°F | 29°F | 5.3" |
| April | 32°F | 56°F | 44°F | 7.2" |
| May | 41°F | 68°F | 54°F | 4.5" |
| June | 55°F | 79°F | 66°F | 5.1" |
| July | 58°F | 81°F | 69°F | 5.2" |
| August | 56°F | 81°F | 68°F | 2.4" |
| September | 49°F | 76°F | 61°F | 3.2" |
| October | 42°F | 62°F | 51°F | 10.5" |
| November | 27°F | 46°F | 36°F | 7.6" |
| December | 16°F | 33°F | 24°F | 4.4" |
| Index | Newport | New Hampshire | National |
| Air quality index | 34 | 34 | 42 |
| Pollution index | 5,847,470 | 3,959,618 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 328 |
| Days with moderate air quality | 37 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.180% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Bradford, NH | 306 | 27 | 46.0% |
| Blodgett Landing, NH | 88 | 34 | 32.0% |
| Hartland, VT | 537 | 34 | 32.0% |
| Plainfield, NH | 265 | 34 | 32.0% |
| Springfield, VT | 4,028 | 34 | 32.0% |
| Newport, NH | 5,530 | 34 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Germantown, OH | 5,530 | 47 | 6.0% |
| Duquesne, PA | 5,534 | 56 | 12.0% |
| Boothwyn, PA | 5,525 | 51 | 2.0% |
| Swartz Creek, MI | 5,535 | 38 | 24.0% |
| Pelham Manor, NY | 5,535 | 51 | 2.0% |
| Newport, NH | 5,530 | 34 | 32.0% |
Here are the best places to live in New Hampshire
These are the 10 most affordable cities in New Hampshire
Top 10 best public schools in Newport
See the best places to live in & around Newport