Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 17°F | 38°F | 26°F | 1.6" |
February | 20°F | 42°F | 29°F | 1.8" |
March | 32°F | 57°F | 43°F | 3.6" |
April | 42°F | 66°F | 53°F | 6.1" |
May | 52°F | 76°F | 63°F | 6.3" |
June | 63°F | 86°F | 74°F | 6.4" |
July | 67°F | 90°F | 78°F | 5.4" |
August | 64°F | 87°F | 75°F | 7.7" |
September | 55°F | 80°F | 67°F | 9.2" |
October | 43°F | 68°F | 54°F | 6.4" |
November | 31°F | 55°F | 41°F | 4.1" |
December | 20°F | 40°F | 28°F | 4.1" |
Index | Cortland | Nebraska | National |
Air quality index | 31 | 86 | 42 |
Pollution index | 648,221 | 590,627 | 2,726,193 |
Measurement | Total |
Days measured | 360 |
Days with good air quality | 338 |
Days with moderate air quality | 22 |
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 | 0.002% |
Lead | 0.002% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Clatonia, NE | 384 | 31 | 38.0% |
Pickrell, NE | 250 | 31 | 38.0% |
Panama, NE | 248 | 31 | 38.0% |
Crab Orchard, NE | 38 | 31 | 38.0% |
De Witt, NE | 580 | 31 | 38.0% |
Cortland, NE | 550 | 31 | 38.0% |
City | Population | Air Quality Index | National Avg. |
Eek, AK | 550 | 31 | 38.0% |
New Cuyama, CA | 550 | 44 | 12.0% |
San Simeon, CA | 550 | 46 | 8.0% |
Camargo, IL | 550 | 42 | 16.0% |
Thebes, IL | 550 | 44 | 12.0% |
Cortland, NE | 550 | 31 | 38.0% |