| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 11°F | 40°F | 24°F | 0.2" |
| February | 16°F | 46°F | 29°F | 0.2" |
| March | 25°F | 60°F | 40°F | 1.4" |
| April | 33°F | 66°F | 48°F | 2.3" |
| May | 42°F | 73°F | 56°F | 4.1" |
| June | 52°F | 87°F | 69°F | 3.9" |
| July | 58°F | 91°F | 73°F | 3.3" |
| August | 55°F | 89°F | 70°F | 4.5" |
| September | 46°F | 81°F | 62°F | 2.7" |
| October | 35°F | 67°F | 48°F | 1.5" |
| November | 23°F | 54°F | 36°F | 1.0" |
| December | 11°F | 38°F | 23°F | 0.3" |
| Index | Kersey | Colorado | National |
| Air quality index | 45 | 38 | 42 |
| Pollution index | 4,543,160 | 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 | 0.070% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.100% |
| City | Population | Air Quality Index | National Avg. |
| Ault, CO | 2,153 | 45 | 10.0% |
| Evans, CO | 22,128 | 45 | 10.0% |
| Eaton, CO | 5,646 | 45 | 10.0% |
| Garden City, CO | 208 | 45 | 10.0% |
| Gilcrest, CO | 1,381 | 45 | 10.0% |
| Kersey, CO | 1,879 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Southport, IN | 1,879 | 54 | 8.0% |
| Freeport, ME | 1,879 | 40 | 20.0% |
| Addison, NY | 1,879 | 35 | 30.0% |
| Ellaville, GA | 1,880 | 39 | 22.0% |
| Durant, IA | 1,878 | 32 | 36.0% |
| Kersey, CO | 1,879 | 45 | 10.0% |
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