| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 54°F | 42°F | 3.6" |
| February | 36°F | 57°F | 45°F | 3.7" |
| March | 45°F | 67°F | 55°F | 5.6" |
| April | 53°F | 76°F | 64°F | 6.5" |
| May | 61°F | 82°F | 71°F | 7.0" |
| June | 71°F | 91°F | 80°F | 3.1" |
| July | 73°F | 93°F | 82°F | 4.4" |
| August | 73°F | 93°F | 82°F | 3.6" |
| September | 66°F | 87°F | 75°F | 3.5" |
| October | 53°F | 76°F | 63°F | 4.3" |
| November | 43°F | 65°F | 53°F | 5.1" |
| December | 36°F | 55°F | 44°F | 6.4" |
| Index | North Little Rock | Arkansas | National |
| Air quality index | 47 | 38 | 50 |
| Pollution index | 607,387 | 1,270,108 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 211 |
| Days with moderate air quality | 153 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Bryant, AR | 19,529 | 47 | 6% |
| East End, AR | 7,148 | 47 | 6% |
| Landmark, AR | 3,045 | 47 | 6% |
| Mayflower, AR | 1,885 | 47 | 6% |
| Shannon Hills, AR | 3,614 | 47 | 6% |
| North Little Rock, AR | 66,042 | 47 | 6% |
| City, State | Population | Air Quality Index | National Avg. |
| Gaithersburg, MD | 66,104 | 49 | 2% |
| Victoria, TX | 66,139 | 27 | 46% |
| Yuba City, CA | 66,147 | 42 | 16% |
| Eagan, MN | 65,874 | 44 | 12% |
| Bayonne, NJ | 65,772 | 53 | 6% |
| North Little Rock, AR | 66,042 | 47 | 6% |
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