| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 55°F | 46°F | 2.4" |
| February | 41°F | 58°F | 48°F | 2.4" |
| March | 48°F | 64°F | 55°F | 4.9" |
| April | 57°F | 72°F | 64°F | 11.2" |
| May | 66°F | 79°F | 72°F | 3.2" |
| June | 73°F | 86°F | 78°F | 2.1" |
| July | 75°F | 88°F | 81°F | 2.8" |
| August | 73°F | 86°F | 79°F | 1.7" |
| September | 69°F | 82°F | 75°F | 1.1" |
| October | 59°F | 74°F | 66°F | 4.2" |
| November | 48°F | 65°F | 56°F | 1.0" |
| December | 45°F | 60°F | 51°F | 3.1" |
| Index | Silver Lake | North Carolina | National |
| Air quality index | 34 | 35 | 42 |
| Pollution index | 4,252,890 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 348 |
| Days with good air quality | 319 |
| Days with moderate air quality | 29 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.090% |
| Lead | 0.020% |
| Mercury | 0.004% |
| City | Population | Air Quality Index | National Avg. |
| Bolivia, NC | 182 | 34 | 32.0% |
| St. James, NC | 6,095 | 34 | 32.0% |
| Blue Clay Farms, NC | 53 | 34 | 32.0% |
| Leland, NC | 22,366 | 34 | 32.0% |
| Northwest, NC | 806 | 34 | 32.0% |
| Silver Lake, NC | 6,355 | 34 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Saint-Calixte, QC | 6,354 | n/a | |
| Pleasure Point, CA | 6,356 | 35 | 30.0% |
| Twin Lakes, WI | 6,356 | 39 | 22.0% |
| Holly, MI | 6,357 | 38 | 24.0% |
| Beauceville, QC | 6,357 | n/a | |
| Silver Lake, NC | 6,355 | 34 | 32.0% |