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 | Simpson | North Carolina | National |
Air quality index | 38 | 35 | 42 |
Pollution index | 3,449,020 | 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 | 0.050% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.040% |
Lead | 0.030% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Washington, NC | 9,555 | 0 | 100.0% |
Bear Grass, NC | 82 | 0 | 100.0% |
Washington Park, NC | 601 | 0 | 100.0% |
Chocowinity, NC | 1,331 | 0 | 100.0% |
Grimesland, NC | 392 | 0 | 100.0% |
Simpson, NC | 462 | 38 | 24.0% |
City | Population | Air Quality Index | National Avg. |
West Jefferson, AL | 462 | 53 | 6.0% |
Grimes, CA | 462 | 44 | 12.0% |
Coaldale, CO | 462 | 16 | 68.0% |
Deer Trail, CO | 462 | 58 | 16.0% |
Smithville, GA | 462 | 39 | 22.0% |
Simpson, NC | 462 | 38 | 24.0% |