| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 47°F | 31°F | 0.4" |
| February | 18°F | 49°F | 32°F | 0.4" |
| March | 27°F | 60°F | 42°F | 0.6" |
| April | 32°F | 66°F | 48°F | 1.8" |
| May | 41°F | 73°F | 56°F | 2.2" |
| June | 52°F | 87°F | 69°F | 1.8" |
| July | 59°F | 93°F | 75°F | 1.7" |
| August | 57°F | 90°F | 72°F | 1.7" |
| September | 49°F | 83°F | 65°F | 1.4" |
| October | 37°F | 70°F | 51°F | 1.4" |
| November | 26°F | 60°F | 41°F | 0.6" |
| December | 16°F | 46°F | 29°F | 0.6" |
| Index | Peoria | Colorado | National |
| Air quality index | 58 | 38 | 42 |
| Pollution index | 1,332,690 | 2,068,342 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 91 |
| Days with moderate air quality | 252 |
| Days w/ poor A.Q. for sensitive groups | 20 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.020% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Byers, CO | 1,338 | 58 | 16.0% |
| Strasburg, CO | 2,987 | 58 | 16.0% |
| Deer Trail, CO | 462 | 58 | 16.0% |
| Peoria, CO | 91 | 58 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Lowell Point, AK | 91 | 31 | 38.0% |
| Guion, AR | 91 | 36 | 28.0% |
| Hat Creek, CA | 91 | 42 | 16.0% |
| Lake Davis, CA | 91 | 44 | 12.0% |
| Springhill, FL | 91 | 41 | 18.0% |
| Peoria, CO | 91 | 58 | 16.0% |
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