| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 38°F | 58°F | 47°F | 6.1" |
| February | 43°F | 63°F | 52°F | 3.9" |
| March | 49°F | 73°F | 61°F | 1.0" |
| April | 55°F | 80°F | 67°F | 0.6" |
| May | 64°F | 91°F | 79°F | 0.2" |
| June | 71°F | 99°F | 86°F | 0.5" |
| July | 79°F | 107°F | 94°F | 1.7" |
| August | 77°F | 102°F | 90°F | 2.7" |
| September | 68°F | 93°F | 81°F | 3.4" |
| October | 57°F | 81°F | 68°F | 8.6" |
| November | 48°F | 71°F | 59°F | 1.8" |
| December | 37°F | 57°F | 46°F | 2.9" |
| Index | North Las Vegas | Nevada | National |
| Air quality index | 54 | 38 | 42 |
| Pollution index | 5,460,430 | 2,601,914 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 154 |
| Days with moderate air quality | 206 |
| Days w/ poor A.Q. for sensitive groups | 5 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Enterprise, NV | 214,591 | 54 | 8.0% |
| Paradise, NV | 193,150 | 54 | 8.0% |
| Whitney, NV | 44,488 | 54 | 8.0% |
| Henderson, NV | 309,955 | 54 | 8.0% |
| Spring Valley, NV | 218,697 | 54 | 8.0% |
| North Las Vegas, NV | 247,248 | 54 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Gilbert, AZ | 248,349 | 74 | 48.0% |
| Winston-Salem, NC | 245,787 | 45 | 10.0% |
| Longueuil, QC | 249,920 | n/a | |
| Norfolk, VA | 244,300 | 40 | 20.0% |
| Glendale, AZ | 250,290 | 74 | 48.0% |
| North Las Vegas, NV | 247,248 | 54 | 8.0% |
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