| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 44°F | 32°F | 2.1" |
| February | 25°F | 46°F | 35°F | 1.8" |
| March | 36°F | 60°F | 47°F | 3.7" |
| April | 46°F | 71°F | 58°F | 5.3" |
| May | 55°F | 78°F | 66°F | 4.5" |
| June | 65°F | 87°F | 76°F | 4.8" |
| July | 68°F | 90°F | 79°F | 2.9" |
| August | 66°F | 89°F | 77°F | 3.4" |
| September | 58°F | 82°F | 69°F | 3.9" |
| October | 46°F | 70°F | 57°F | 3.0" |
| November | 36°F | 59°F | 46°F | 2.8" |
| December | 27°F | 45°F | 35°F | 3.1" |
| Index | High Ridge | Missouri | National |
| Air quality index | 54 | 97 | 42 |
| Pollution index | 8,473,050 | 1,630,255 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 134 |
| Days with moderate air quality | 221 |
| Days w/ poor A.Q. for sensitive groups | 8 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.070% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Grantwood Village, MO | 947 | 54 | 8.0% |
| Wilbur Park, MO | 406 | 54 | 8.0% |
| Ballwin, MO | 30,177 | 54 | 8.0% |
| Huntleigh, MO | 447 | 54 | 8.0% |
| Maplewood, MO | 8,073 | 54 | 8.0% |
| High Ridge, MO | 4,257 | 54 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Country Lake Estates, NJ | 4,257 | 41 | 18.0% |
| Highland CDP, IN | 4,256 | 55 | 10.0% |
| Helena Valley Northwest, MT | 4,256 | 40 | 20.0% |
| North Richmond, CA | 4,258 | 40 | 20.0% |
| North Plymouth, MA | 4,258 | 36 | 28.0% |
| High Ridge, MO | 4,257 | 54 | 8.0% |
Here are the best places to live in Missouri
Check out the 10 safest cities in Missouri
Safest Cities In The US
See the best places to live in High Ridge