| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 19°F | 38°F | 27°F | 2.5" |
| February | 24°F | 45°F | 33°F | 1.2" |
| March | 36°F | 62°F | 47°F | 2.4" |
| April | 43°F | 68°F | 54°F | 8.0" |
| May | 53°F | 77°F | 64°F | 9.5" |
| June | 63°F | 87°F | 74°F | 5.7" |
| July | 67°F | 90°F | 78°F | 6.1" |
| August | 61°F | 84°F | 72°F | 7.0" |
| September | 54°F | 81°F | 66°F | 7.9" |
| October | 42°F | 69°F | 54°F | 5.8" |
| November | 31°F | 56°F | 42°F | 2.6" |
| December | 20°F | 40°F | 29°F | 4.3" |
| Index | Colon | Nebraska | National |
| Air quality index | 40 | 86 | 42 |
| Pollution index | 554,364 | 590,627 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 283 |
| Days with moderate air quality | 82 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Ithaca, NE | 138 | 31 | 38.0% |
| Prague, NE | 317 | 31 | 38.0% |
| Wahoo, NE | 4,520 | 31 | 38.0% |
| Weston, NE | 361 | 31 | 38.0% |
| Malmo, NE | 163 | 31 | 38.0% |
| Colon, NE | 83 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Gulkana, AK | 83 | 31 | 38.0% |
| Pilot Point, AK | 83 | 31 | 38.0% |
| Higden, AR | 83 | 45 | 10.0% |
| Patmos, AR | 83 | 39 | 22.0% |
| Ledyard, IA | 83 | 15 | 70.0% |
| Colon, NE | 83 | 40 | 20.0% |
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