| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 43°F | 33°F | 3.8" |
| February | 25°F | 45°F | 34°F | 3.3" |
| March | 32°F | 54°F | 42°F | 3.9" |
| April | 43°F | 67°F | 54°F | 4.1" |
| May | 53°F | 76°F | 63°F | 4.5" |
| June | 63°F | 84°F | 73°F | 5.5" |
| July | 69°F | 90°F | 79°F | 4.4" |
| August | 67°F | 87°F | 77°F | 4.8" |
| September | 60°F | 81°F | 70°F | 3.2" |
| October | 49°F | 70°F | 59°F | 5.1" |
| November | 38°F | 58°F | 48°F | 3.3" |
| December | 31°F | 48°F | 39°F | 5.0" |
| Index | Silver Lake | New Jersey | National |
| Air quality index | 51 | 45 | 42 |
| Pollution index | 7,391,620 | 7,246,891 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 169 |
| Days with moderate air quality | 180 |
| Days w/ poor A.Q. for sensitive groups | 16 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.070% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.020% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| Englewood, NJ | 28,390 | 51 | 2.0% |
| Mountain Lakes, NJ | 4,249 | 51 | 2.0% |
| Totowa, NJ | 10,810 | 51 | 2.0% |
| Clifton, NJ | 85,201 | 51 | 2.0% |
| Leonia, NJ | 9,059 | 51 | 2.0% |
| Silver Lake, NJ | 3,970 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| West Nyack, NY | 3,970 | 51 | 2.0% |
| Le Claire, IA | 3,969 | 46 | 8.0% |
| Norton, VA | 3,969 | 45 | 10.0% |
| Coronita, CA | 3,968 | 89 | 78.0% |
| Fulton, MS | 3,968 | 39 | 22.0% |
| Silver Lake, NJ | 3,970 | 51 | 2.0% |
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