| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 54°F | 46°F | 6.8" |
| February | 36°F | 55°F | 45°F | 7.4" |
| March | 42°F | 66°F | 53°F | 6.6" |
| April | 50°F | 74°F | 61°F | 10.4" |
| May | 57°F | 79°F | 68°F | 7.5" |
| June | 68°F | 88°F | 77°F | 12.8" |
| July | 71°F | 91°F | 80°F | 4.1" |
| August | 72°F | 92°F | 81°F | 4.8" |
| September | 66°F | 87°F | 76°F | 8.5" |
| October | 58°F | 77°F | 67°F | 9.7" |
| November | 45°F | 67°F | 55°F | 5.7" |
| December | 38°F | 58°F | 47°F | 10.0" |
| Index | Elroy | North Carolina | National |
| Air quality index | 40 | 35 | 42 |
| Pollution index | 949,752 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 359 |
| Days with good air quality | 237 |
| Days with moderate air quality | 122 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| Eureka, NC | 215 | 40 | 20.0% |
| Mount Olive, NC | 4,670 | 40 | 20.0% |
| Goldsboro, NC | 34,610 | 40 | 20.0% |
| Seven Springs, NC | 44 | 40 | 20.0% |
| Mar-Mac, NC | 3,119 | 40 | 20.0% |
| Elroy, NC | 4,114 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Crawfordville, FL | 4,113 | 40 | 20.0% |
| Rossland, BC | 4,115 | n/a | |
| Golden, BC | 4,115 | n/a | |
| Point Pleasant, WV | 4,112 | 25 | 50.0% |
| Scottdale, PA | 4,116 | 36 | 28.0% |
| Elroy, NC | 4,114 | 40 | 20.0% |
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