| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 15°F | 40°F | 26°F | 1.2" |
| February | 20°F | 48°F | 32°F | 0.8" |
| March | 25°F | 59°F | 40°F | 1.8" |
| April | 32°F | 63°F | 46°F | 4.8" |
| May | 41°F | 68°F | 53°F | 7.4" |
| June | 53°F | 85°F | 69°F | 2.8" |
| July | 58°F | 90°F | 73°F | 2.7" |
| August | 54°F | 87°F | 70°F | 3.0" |
| September | 48°F | 82°F | 64°F | 4.3" |
| October | 37°F | 69°F | 51°F | 2.6" |
| November | 23°F | 54°F | 37°F | 2.5" |
| December | 13°F | 41°F | 26°F | 0.8" |
| Index | Sunol | Nebraska | National |
| Air quality index | 19 | 86 | 42 |
| Pollution index | 362,100 | 590,627 | 2,726,193 |
| Measurement | Total |
| Days measured | 113 |
| Days with good air quality | 110 |
| Days with moderate air quality | 3 |
| 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 | 0.030% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Lodgepole, NE | 302 | 19 | 62.0% |
| Sidney, NE | 6,673 | 19 | 62.0% |
| Gurley, NE | 272 | 19 | 62.0% |
| Sunol, NE | 115 | 19 | 62.0% |
| City | Population | Air Quality Index | National Avg. |
| Peterman, AL | 115 | 37 | 26.0% |
| Gum Springs, AR | 115 | 32 | 36.0% |
| McNab, AR | 115 | 39 | 22.0% |
| Sehili, AZ | 115 | 17 | 66.0% |
| Monmouth, CA | 115 | 60 | 20.0% |
| Sunol, NE | 115 | 19 | 62.0% |