Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 40°F | 62°F | 50°F | 2.8" |
February | 41°F | 64°F | 52°F | 3.8" |
March | 48°F | 71°F | 59°F | 4.2" |
April | 56°F | 79°F | 67°F | 3.9" |
May | 64°F | 85°F | 74°F | 3.5" |
June | 71°F | 90°F | 80°F | 4.8" |
July | 74°F | 93°F | 82°F | 4.8" |
August | 74°F | 91°F | 82°F | 7.7" |
September | 69°F | 87°F | 77°F | 4.7" |
October | 59°F | 79°F | 68°F | 3.9" |
November | 47°F | 70°F | 58°F | 2.1" |
December | 44°F | 66°F | 54°F | 3.3" |
Index | Port Royal | South Carolina | National |
Air quality index | 39 | 37 | 42 |
Pollution index | 1,428,370 | 3,620,438 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 295 |
Days with moderate air quality | 70 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.020% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.040% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Burton, SC | 8,779 | 29 | 42.0% |
Beaufort, SC | 13,417 | 29 | 42.0% |
Laurel Bay, SC | 6,388 | 29 | 42.0% |
Bluffton, SC | 23,176 | 39 | 22.0% |
Shell Point, SC | 2,991 | 39 | 22.0% |
Port Royal, SC | 13,265 | 39 | 22.0% |
City | Population | Air Quality Index | National Avg. |
Conway, FL | 13,266 | 39 | 22.0% |
Colchester, Subd. C, NS | 13,273 | n/a | |
Richmond Hill, GA | 13,250 | 39 | 22.0% |
Bellefontaine, OH | 13,250 | 45 | 10.0% |
Channahon, IL | 13,281 | 0 | 100.0% |
Port Royal, SC | 13,265 | 39 | 22.0% |