| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 17°F | 42°F | 28°F | 0.2" |
| February | 19°F | 45°F | 30°F | 0.1" |
| March | 28°F | 58°F | 41°F | 0.5" |
| April | 34°F | 64°F | 47°F | 1.6" |
| May | 43°F | 72°F | 56°F | 2.7" |
| June | 54°F | 85°F | 69°F | 2.5" |
| July | 61°F | 91°F | 75°F | 2.7" |
| August | 59°F | 88°F | 72°F | 2.2" |
| September | 50°F | 81°F | 64°F | 1.5" |
| October | 38°F | 67°F | 50°F | 1.0" |
| November | 27°F | 56°F | 40°F | 0.3" |
| December | 16°F | 41°F | 27°F | 0.1" |
| Index | Brush | Colorado | National |
| Air quality index | 45 | 38 | 42 |
| Pollution index | 925,959 | 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 | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Log Lane Village, CO | 1,057 | 45 | 10.0% |
| Saddle Ridge, CO | 51 | 45 | 10.0% |
| Fort Morgan, CO | 11,311 | 45 | 10.0% |
| Snyder, CO | 152 | 45 | 10.0% |
| Hillrose, CO | 312 | 45 | 10.0% |
| Brush, CO | 5,408 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Emporia, VA | 5,408 | 36 | 28.0% |
| Wind Lake, WI | 5,407 | 39 | 22.0% |
| Zephyrhills West, FL | 5,409 | 36 | 28.0% |
| Terrell Hills, TX | 5,409 | 49 | 2.0% |
| Holdrege, NE | 5,406 | 19 | 62.0% |
| Brush, CO | 5,408 | 45 | 10.0% |
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