| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 44°F | 32°F | 1.0" |
| February | 26°F | 46°F | 34°F | 1.3" |
| March | 38°F | 60°F | 48°F | 2.5" |
| April | 47°F | 70°F | 57°F | 4.4" |
| May | 57°F | 77°F | 66°F | 4.2" |
| June | 67°F | 87°F | 76°F | 4.7" |
| July | 70°F | 90°F | 79°F | 3.6" |
| August | 67°F | 89°F | 77°F | 2.3" |
| September | 59°F | 81°F | 69°F | 3.7" |
| October | 48°F | 70°F | 58°F | 3.7" |
| November | 38°F | 58°F | 47°F | 2.4" |
| December | 28°F | 45°F | 35°F | 1.8" |
| Index | Warsaw | Missouri | National |
| Air quality index | 39 | 97 | 42 |
| Pollution index | 559,454 | 1,630,255 | 2,726,193 |
| Measurement | Total |
| Days measured | 245 |
| Days with good air quality | 238 |
| Days with moderate air quality | 7 |
| 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 | Population | Air Quality Index | National Avg. |
| Lincoln, MO | 1,210 | 39 | 22.0% |
| Tightwad, MO | 80 | 39 | 22.0% |
| Cole Camp, MO | 1,334 | 39 | 22.0% |
| Warsaw, MO | 2,380 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Hayti, MO | 2,380 | 26 | 48.0% |
| Center, CO | 2,379 | 16 | 68.0% |
| Lapel, IN | 2,379 | 42 | 16.0% |
| East Berwick, PA | 2,379 | 38 | 24.0% |
| Watertown, FL | 2,381 | 38 | 24.0% |
| Warsaw, MO | 2,380 | 39 | 22.0% |
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