| 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 | Keenesburg | Colorado | National |
| Air quality index | 45 | 38 | 42 |
| Pollution index | 128,476 | 2,068,342 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 252 |
| Days with moderate air quality | 110 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Hudson, CO | 2,691 | 45 | 10.0% |
| Aristocrat Ranchettes, CO | 2,080 | 45 | 10.0% |
| Lochbuie, CO | 6,795 | 58 | 16.0% |
| Keenesburg, CO | 1,774 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Lukachukai, AZ | 1,774 | 49 | 2.0% |
| Douglass, KS | 1,774 | 40 | 20.0% |
| Rushford, MN | 1,774 | 15 | 70.0% |
| Upper Pohatcong, NJ | 1,774 | 34 | 32.0% |
| New Oxford, PA | 1,775 | 42 | 16.0% |
| Keenesburg, CO | 1,774 | 45 | 10.0% |
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