| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 10°F | 25°F | 17°F | 1.7" |
| February | 12°F | 27°F | 19°F | 2.0" |
| March | 25°F | 44°F | 34°F | 3.8" |
| April | 38°F | 60°F | 48°F | 4.3" |
| May | 50°F | 70°F | 59°F | 4.7" |
| June | 61°F | 82°F | 72°F | 7.0" |
| July | 64°F | 86°F | 75°F | 4.5" |
| August | 60°F | 81°F | 71°F | 5.6" |
| September | 55°F | 76°F | 64°F | 12.2" |
| October | 43°F | 62°F | 52°F | 5.4" |
| November | 27°F | 44°F | 35°F | 2.0" |
| December | 11°F | 24°F | 18°F | 1.6" |
| Index | St. Louis Park | Minnesota | National |
| Air quality index | 46 | 35 | 42 |
| Pollution index | 1,774,860 | 1,854,519 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 214 |
| Days with moderate air quality | 148 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.003% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Circle Pines, MN | 4,951 | 46 | 8.0% |
| Mendota, MN | 149 | 46 | 8.0% |
| St. Paul, MN | 305,877 | 46 | 8.0% |
| Brooklyn Center, MN | 30,755 | 46 | 8.0% |
| Minneapolis, MN | 424,536 | 46 | 8.0% |
| St. Louis Park, MN | 48,874 | 46 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Florin, CA | 48,839 | 52 | 4.0% |
| Columbus, IN | 48,820 | 41 | 18.0% |
| Shawinigan, QC | 48,810 | n/a | |
| San Jacinto, CA | 48,786 | 89 | 78.0% |
| Murray, UT | 48,969 | 51 | 2.0% |
| St. Louis Park, MN | 48,874 | 46 | 8.0% |
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