| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 34°F | 54°F | 44°F | 4.3" |
| February | 31°F | 53°F | 41°F | 4.1" |
| March | 39°F | 64°F | 50°F | 7.1" |
| April | 48°F | 72°F | 59°F | 5.0" |
| May | 55°F | 77°F | 66°F | 5.2" |
| June | 65°F | 87°F | 76°F | 3.9" |
| July | 70°F | 91°F | 80°F | 6.4" |
| August | 71°F | 93°F | 81°F | 4.9" |
| September | 64°F | 87°F | 75°F | 3.3" |
| October | 56°F | 77°F | 65°F | 8.3" |
| November | 41°F | 65°F | 52°F | 5.3" |
| December | 35°F | 56°F | 44°F | 7.4" |
| Index | Littleton | North Carolina | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 1,869,560 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 325 |
| Days with moderate air quality | 38 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.160% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.180% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Warrenton, NC | 1,036 | 36 | 28.0% |
| Ebony, VA | 231 | 36 | 28.0% |
| Gaston, NC | 1,290 | 36 | 28.0% |
| Hollister, NC | 860 | 36 | 28.0% |
| Bracey, VA | 1,113 | 36 | 28.0% |
| Littleton, NC | 520 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Keams Canyon, AZ | 520 | 17 | 66.0% |
| Jay, FL | 520 | 41 | 18.0% |
| Seabrook, MA | 520 | 36 | 28.0% |
| Cement City, MI | 520 | 39 | 22.0% |
| Green City, MO | 520 | 41 | 18.0% |
| Littleton, NC | 520 | 36 | 28.0% |
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