| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 52°F | 40°F | 5.8" |
| February | 33°F | 53°F | 41°F | 5.5" |
| March | 39°F | 63°F | 50°F | 4.4" |
| April | 49°F | 75°F | 61°F | 6.7" |
| May | 58°F | 81°F | 69°F | 5.8" |
| June | 64°F | 89°F | 77°F | 7.1" |
| July | 69°F | 91°F | 79°F | 10.4" |
| August | 64°F | 90°F | 77°F | 6.0" |
| September | 61°F | 85°F | 72°F | 8.6" |
| October | 51°F | 75°F | 62°F | 7.3" |
| November | 40°F | 63°F | 50°F | 8.2" |
| December | 39°F | 61°F | 49°F | 7.8" |
| Index | Hamilton | North Carolina | National |
| Air quality index | 38 | 35 | 42 |
| Pollution index | 2,959,880 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 352 |
| Days with good air quality | 308 |
| Days with moderate air quality | 44 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Askewville, NC | 182 | 0 | 100.0% |
| Bear Grass, NC | 82 | 0 | 100.0% |
| Windsor, NC | 3,422 | 0 | 100.0% |
| Williamston, NC | 5,251 | 0 | 100.0% |
| Lewiston Woodville, NC | 409 | 36 | 28.0% |
| Hamilton, NC | 226 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Fredonia, AL | 226 | 42 | 16.0% |
| Keo, AR | 226 | 45 | 10.0% |
| Lynn, AR | 226 | 45 | 10.0% |
| Sierra Village, CA | 226 | 39 | 22.0% |
| Volga, IA | 226 | 39 | 22.0% |
| Hamilton, NC | 226 | 38 | 24.0% |
Here are the best places to live in North Carolina
10 Best cities in North Carolina for employment
Top 10 cities in North Carolina with the best education system
See the best places to live in & around Hamilton