| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 50°F | 35°F | 1.0" |
| February | 27°F | 54°F | 39°F | 1.6" |
| March | 38°F | 66°F | 51°F | 3.3" |
| April | 47°F | 74°F | 60°F | 5.1" |
| May | 56°F | 80°F | 67°F | 5.5" |
| June | 66°F | 90°F | 77°F | 5.8" |
| July | 69°F | 94°F | 81°F | 3.7" |
| August | 67°F | 93°F | 79°F | 3.8" |
| September | 59°F | 85°F | 71°F | 3.3" |
| October | 47°F | 75°F | 59°F | 3.8" |
| November | 36°F | 63°F | 48°F | 2.3" |
| December | 27°F | 50°F | 37°F | 1.8" |
| Index | Peru | Kansas | National |
| Air quality index | 40 | 47 | 42 |
| Pollution index | 121,713 | 989,153 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 292 |
| Days with moderate air quality | 72 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Caney, KS | 1,659 | 38 | 24.0% |
| Tyro, KS | 181 | 38 | 24.0% |
| Havana, KS | 68 | 38 | 24.0% |
| Elk City, KS | 268 | 38 | 24.0% |
| Niotaze, KS | 120 | 40 | 20.0% |
| Peru, KS | 163 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Oil Trough, AR | 163 | 45 | 10.0% |
| Antares, AZ | 163 | 13 | 74.0% |
| Sedgwick, CO | 163 | 19 | 62.0% |
| Maunie, IL | 163 | 45 | 10.0% |
| Lincolnville, KS | 163 | 22 | 56.0% |
| Peru, KS | 163 | 40 | 20.0% |
Here are the best places to live in Kansas
Most Dangerous States In The US
See the best places to live in Peru
These are the 10 cheapest cities in Kansas