| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 56°F | 45°F | 4.5" |
| February | 37°F | 59°F | 47°F | 3.0" |
| March | 45°F | 68°F | 56°F | 4.1" |
| April | 53°F | 77°F | 64°F | 4.1" |
| May | 61°F | 83°F | 71°F | 3.4" |
| June | 69°F | 90°F | 79°F | 3.7" |
| July | 71°F | 92°F | 80°F | 3.5" |
| August | 71°F | 91°F | 80°F | 5.7" |
| September | 66°F | 85°F | 74°F | 3.5" |
| October | 54°F | 76°F | 64°F | 3.8" |
| November | 43°F | 66°F | 54°F | 3.2" |
| December | 39°F | 59°F | 48°F | 5.1" |
| Index | Norris | South Carolina | National |
| Air quality index | 41 | 37 | 42 |
| Pollution index | 770,308 | 3,620,438 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 308 |
| Days with moderate air quality | 56 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.004% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Northlake, SC | 3,684 | 31 | 38.0% |
| Liberty, SC | 3,168 | 41 | 18.0% |
| Seneca, SC | 8,424 | 41 | 18.0% |
| Central, SC | 5,342 | 41 | 18.0% |
| Newry, SC | 98 | 41 | 18.0% |
| Norris, SC | 759 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Wall Lake, IA | 759 | 35 | 30.0% |
| Freelandville, IN | 759 | 1 | 98.0% |
| West Lebanon, IN | 759 | 42 | 16.0% |
| Rushford Village, MN | 759 | 15 | 70.0% |
| Newfield Hamlet, NY | 759 | 34 | 32.0% |
| Norris, SC | 759 | 41 | 18.0% |
Here are the best places to live in South Carolina
These are the 10 most affordable cities in South Carolina
Check out the 10 safest cities in South Carolina
10 Best cities in South Carolina for employment