| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 21°F | 42°F | 30°F | 0.8" |
| February | 23°F | 45°F | 33°F | 1.6" |
| March | 36°F | 59°F | 46°F | 2.5" |
| April | 45°F | 68°F | 56°F | 4.4" |
| May | 55°F | 76°F | 65°F | 5.4" |
| June | 65°F | 87°F | 75°F | 6.1" |
| July | 68°F | 90°F | 79°F | 4.9" |
| August | 67°F | 89°F | 77°F | 5.2" |
| September | 59°F | 81°F | 68°F | 4.3" |
| October | 46°F | 69°F | 57°F | 3.7" |
| November | 35°F | 57°F | 45°F | 1.7" |
| December | 24°F | 43°F | 33°F | 1.8" |
| Index | Garnett | Kansas | National |
| Air quality index | 22 | 47 | 42 |
| Pollution index | 8,275,060 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 60 |
| Days with good air quality | 55 |
| Days with moderate air quality | 4 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.300% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.080% |
| Mercury | 0.190% |
| City | Population | Air Quality Index | National Avg. |
| Harris, KS | 8 | 22 | 56.0% |
| Kincaid, KS | 62 | 22 | 56.0% |
| Lone Elm, KS | 12 | 22 | 56.0% |
| Blue Mound, KS | 301 | 22 | 56.0% |
| Welda, KS | 100 | 22 | 56.0% |
| Garnett, KS | 3,245 | 22 | 56.0% |
| City | Population | Air Quality Index | National Avg. |
| Chickamauga, GA | 3,245 | 46 | 8.0% |
| Pottsgrove, PA | 3,245 | 42 | 16.0% |
| Pendleton, SC | 3,245 | 41 | 18.0% |
| Saint-Côme--Linière, QC | 3,244 | n/a | |
| Choccolocco, AL | 3,246 | 38 | 24.0% |
| Garnett, KS | 3,245 | 22 | 56.0% |
Here are the best places to live in Kansas
10 best cities to buy a new house in Kansas
These are the 10 most affordable cities in Kansas
Top 10 cities in Kansas with the best education system