| 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 | Fort Lupton | Colorado | National |
| Air quality index | 58 | 38 | 42 |
| Pollution index | 3,326,550 | 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 | 0.060% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.130% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Hudson, CO | 2,755 | 45 | 10.0% |
| Gilcrest, CO | 1,415 | 45 | 10.0% |
| Mead, CO | 5,085 | 45 | 10.0% |
| Aristocrat Ranchettes, CO | 2,154 | 45 | 10.0% |
| Platteville, CO | 3,108 | 45 | 10.0% |
| Fort Lupton, CO | 8,787 | 58 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Live Oak city, CA | 8,786 | 35 | 30.0% |
| Hailey, ID | 8,788 | 20 | 60.0% |
| Oak Hills Place, LA | 8,788 | 45 | 10.0% |
| Morrisville, PA | 8,788 | 41 | 18.0% |
| Prien, LA | 8,785 | 45 | 10.0% |
| Fort Lupton, CO | 8,787 | 58 | 16.0% |