| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 43°F | 32°F | 0.7" |
| February | 26°F | 47°F | 35°F | 1.3" |
| March | 38°F | 60°F | 48°F | 2.2" |
| April | 48°F | 70°F | 58°F | 3.9" |
| May | 57°F | 77°F | 67°F | 5.0" |
| June | 68°F | 88°F | 78°F | 5.6" |
| July | 72°F | 91°F | 81°F | 4.7" |
| August | 70°F | 90°F | 79°F | 5.1" |
| September | 62°F | 82°F | 71°F | 4.3" |
| October | 49°F | 70°F | 59°F | 3.5" |
| November | 38°F | 59°F | 48°F | 1.5" |
| December | 27°F | 45°F | 35°F | 1.2" |
| Index | Westwood | Kansas | National |
| Air quality index | 47 | 47 | 42 |
| Pollution index | 170,963 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 210 |
| Days with moderate air quality | 154 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Edwardsville, KS | 4,506 | 47 | 6.0% |
| Merriam, KS | 11,191 | 47 | 6.0% |
| Overland Park, KS | 193,412 | 47 | 6.0% |
| Westwood Hills, KS | 473 | 47 | 6.0% |
| Raytown, MO | 29,176 | 47 | 6.0% |
| Westwood, KS | 1,746 | 47 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Emory, TX | 1,745 | 36 | 28.0% |
| Venise-en-Québec, QC | 1,747 | n/a | |
| Clarkesville, GA | 1,748 | 37 | 26.0% |
| Osakis, MN | 1,744 | 32 | 36.0% |
| Remsenburg-Speonk, NY | 1,748 | 41 | 18.0% |
| Westwood, KS | 1,746 | 47 | 6.0% |
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