Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 31°F | 52°F | 40°F | 5.3" |
February | 32°F | 55°F | 42°F | 4.3" |
March | 40°F | 64°F | 51°F | 3.9" |
April | 48°F | 73°F | 60°F | 5.4" |
May | 56°F | 79°F | 67°F | 5.5" |
June | 65°F | 86°F | 75°F | 5.3" |
July | 68°F | 89°F | 77°F | 5.2" |
August | 67°F | 87°F | 76°F | 6.6" |
September | 61°F | 82°F | 70°F | 4.3" |
October | 48°F | 72°F | 59°F | 5.9" |
November | 37°F | 62°F | 48°F | 9.4" |
December | 34°F | 55°F | 44°F | 8.1" |
Index | Granite Quarry | North Carolina | National |
Air quality index | 40 | 35 | 42 |
Pollution index | 3,428,900 | 2,789,538 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 292 |
Days with moderate air quality | 73 |
Days w/ poor A.Q. for sensitive groups | |
Days with unhealthy air quality |
Pollutant | Total |
Arsenic | 0.005% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.010% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
China Grove, NC | 4,225 | 40 | 20.0% |
Rockwell, NC | 2,090 | 40 | 20.0% |
Cleveland, NC | 1,147 | 40 | 20.0% |
Concord, NC | 94,147 | 40 | 20.0% |
New London, NC | 640 | 40 | 20.0% |
Granite Quarry, NC | 2,973 | 40 | 20.0% |
City | Population | Air Quality Index | National Avg. |
Penbrook, PA | 2,973 | 44 | 12.0% |
Navy Yard City, WA | 2,973 | 18 | 64.0% |
East Kootenay F, BC | 2,973 | n/a | |
Sainte-Marguerite-du-Lac-Masson, QC | 2,972 | n/a | |
Evansville, WY | 2,974 | 42 | 16.0% |
Granite Quarry, NC | 2,973 | 40 | 20.0% |