| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 36°F | 25°F | 0.8" |
| February | 17°F | 40°F | 27°F | 1.1" |
| March | 29°F | 54°F | 39°F | 2.1" |
| April | 38°F | 64°F | 49°F | 5.3" |
| May | 48°F | 73°F | 60°F | 5.1" |
| June | 59°F | 83°F | 71°F | 7.4" |
| July | 64°F | 87°F | 75°F | 5.6" |
| August | 61°F | 84°F | 71°F | 5.9" |
| September | 52°F | 78°F | 63°F | 4.4" |
| October | 40°F | 65°F | 51°F | 5.1" |
| November | 27°F | 53°F | 38°F | 2.2" |
| December | 17°F | 37°F | 26°F | 1.5" |
| Index | Fullerton | Nebraska | National |
| Air quality index | 19 | 86 | 42 |
| Pollution index | 222,362 | 590,627 | 2,726,193 |
| Measurement | Total |
| Days measured | 97 |
| Days with good air quality | 92 |
| Days with moderate air quality | 5 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Archer, NE | 45 | 19 | 62.0% |
| Belgrade, NE | 183 | 19 | 62.0% |
| Genoa, NE | 905 | 19 | 62.0% |
| Clarks, NE | 334 | 19 | 62.0% |
| St. Edward, NE | 613 | 19 | 62.0% |
| Fullerton, NE | 1,569 | 19 | 62.0% |
| City | Population | Air Quality Index | National Avg. |
| East Dubuque, IL | 1,569 | 29 | 42.0% |
| Roxana, IL | 1,570 | 54 | 8.0% |
| Olive Hill, KY | 1,568 | 14 | 72.0% |
| St. Regis Park, KY | 1,568 | 49 | 2.0% |
| East Berlin, PA | 1,570 | 41 | 18.0% |
| Fullerton, NE | 1,569 | 19 | 62.0% |
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