| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 34°F | 22°F | 0.9" |
| February | 20°F | 43°F | 29°F | 1.5" |
| March | 32°F | 60°F | 43°F | 3.4" |
| April | 39°F | 63°F | 49°F | 6.8" |
| May | 52°F | 75°F | 62°F | 5.3" |
| June | 61°F | 84°F | 71°F | 4.1" |
| July | 65°F | 90°F | 76°F | 4.4" |
| August | 64°F | 88°F | 74°F | 6.3" |
| September | 55°F | 83°F | 67°F | 4.5" |
| October | 43°F | 71°F | 54°F | 7.7" |
| November | 29°F | 58°F | 41°F | 5.6" |
| December | 16°F | 35°F | 24°F | 1.3" |
| Index | Norman | Nebraska | National |
| Air quality index | 19 | 86 | 42 |
| Pollution index | 106,281 | 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 | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Campbell, NE | 341 | 19 | 62.0% |
| Kenesaw, NE | 1,088 | 19 | 62.0% |
| Minden, NE | 2,906 | 19 | 62.0% |
| Hildreth, NE | 477 | 19 | 62.0% |
| Prosser, NE | 115 | 19 | 62.0% |
| Norman, NE | 38 | 19 | 62.0% |
| City | Population | Air Quality Index | National Avg. |
| Central, AK | 38 | 38 | 24.0% |
| Whelen Springs, AR | 38 | 32 | 36.0% |
| McClenney Tract, CA | 38 | 67 | 34.0% |
| Valley Ranch, CA | 38 | 44 | 12.0% |
| Sawpit, CO | 38 | 44 | 12.0% |
| Norman, NE | 38 | 19 | 62.0% |
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