| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 55°F | 44°F | 5.9" |
| February | 35°F | 57°F | 45°F | 7.1" |
| March | 42°F | 65°F | 53°F | 6.6" |
| April | 51°F | 74°F | 62°F | 8.3" |
| May | 59°F | 80°F | 69°F | 8.5" |
| June | 68°F | 87°F | 77°F | 13.5" |
| July | 72°F | 89°F | 80°F | 8.2" |
| August | 71°F | 88°F | 78°F | 19.4" |
| September | 65°F | 82°F | 73°F | 24.1" |
| October | 54°F | 75°F | 63°F | 15.3" |
| November | 43°F | 64°F | 52°F | 3.5" |
| December | 39°F | 59°F | 48°F | 8.7" |
| Index | Washington | North Carolina | National |
| Air quality index | 0 | 35 | 42 |
| Pollution index | 3,449,020 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 352 |
| Days with good air quality | 352 |
| Days with moderate air quality | 0 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.050% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.030% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Bear Grass, NC | 82 | 0 | 100.0% |
| Chocowinity, NC | 1,331 | 0 | 100.0% |
| Bath, NC | 220 | 0 | 100.0% |
| Grimesland, NC | 392 | 0 | 100.0% |
| River Road, NC | 3,578 | 0 | 100.0% |
| Washington, NC | 9,555 | 0 | 100.0% |
| City | Population | Air Quality Index | National Avg. |
| West Athens, CA | 9,554 | 72 | 44.0% |
| Rye Brook, NY | 9,554 | 43 | 14.0% |
| White Horse, NJ | 9,557 | 41 | 18.0% |
| Cheat Lake, WV | 9,559 | 36 | 28.0% |
| Fairmount, CO | 9,549 | 58 | 16.0% |
| Washington, NC | 9,555 | 0 | 100.0% |
Here are the best places to live in North Carolina
Safest States In The US
These are the 10 cheapest cities in North Carolina
These are the largest cities in North Carolina