| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 41°F | 31°F | 3.4" |
| February | 28°F | 49°F | 37°F | 3.0" |
| March | 40°F | 64°F | 50°F | 8.1" |
| April | 45°F | 67°F | 55°F | 4.4" |
| May | 57°F | 77°F | 67°F | 7.6" |
| June | 65°F | 85°F | 75°F | 15.3" |
| July | 68°F | 91°F | 79°F | 5.4" |
| August | 71°F | 92°F | 80°F | 12.0" |
| September | 62°F | 85°F | 72°F | 1.5" |
| October | 50°F | 73°F | 60°F | 9.9" |
| November | 36°F | 61°F | 47°F | 0.9" |
| December | 23°F | 43°F | 32°F | 3.7" |
| Index | Towanda | Kansas | National |
| Air quality index | 40 | 47 | 50 |
| Pollution index | 438,885 | 850,204 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 301 |
| Days with moderate air quality | 64 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Bel Aire, KS | 7,214 | 40 | 20% |
| Andover, KS | 12,477 | 40 | 20% |
| McConnell AFB, KS | 1,359 | 40 | 20% |
| Benton, KS | 936 | 40 | 20% |
| Augusta, KS | 9,262 | 40 | 20% |
| Towanda, KS | 1,382 | 40 | 20% |
| City, State | Population | Air Quality Index | National Avg. |
| Ponderosa Pine, NM | 1,382 | 53 | 6% |
| Tieton, WA | 1,382 | 38 | 24% |
| Norfolk, NY | 1,383 | 0 | 100% |
| Schwenksville, PA | 1,381 | 42 | 16% |
| Zena, NY | 1,383 | 36 | 28% |
| Towanda, KS | 1,382 | 40 | 20% |
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