Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 16°F | 33°F | 24°F | 0.5" |
February | 18°F | 36°F | 26°F | 1.3" |
March | 31°F | 52°F | 40°F | 7.8" |
April | 41°F | 65°F | 52°F | 9.4" |
May | 52°F | 74°F | 62°F | 8.4" |
June | 62°F | 84°F | 72°F | 5.7" |
July | 65°F | 87°F | 76°F | 6.6" |
August | 63°F | 84°F | 73°F | 4.1" |
September | 55°F | 79°F | 66°F | 7.3" |
October | 43°F | 66°F | 54°F | 4.3" |
November | 32°F | 52°F | 41°F | 2.7" |
December | 20°F | 37°F | 28°F | 3.3" |
Index | Melcher-Dallas | Iowa | National |
Air quality index | 39 | 39 | 42 |
Pollution index | 1,478,700 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 306 |
Days with moderate air quality | 59 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.002% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Knoxville, IA | 7,154 | 39 | 22.0% |
Pleasantville, IA | 2,147 | 39 | 22.0% |
Williamson, IA | 184 | 39 | 22.0% |
Lacona, IA | 339 | 39 | 22.0% |
Sandyville, IA | 64 | 39 | 22.0% |
Melcher-Dallas, IA | 1,313 | 39 | 22.0% |
City | Population | Air Quality Index | National Avg. |
Cortland West, NY | 1,313 | 34 | 32.0% |
Apache, OK | 1,313 | 43 | 14.0% |
Buffalo, OK | 1,313 | 15 | 70.0% |
Markesan, WI | 1,313 | 40 | 20.0% |
Forest View, IL | 1,312 | 55 | 10.0% |
Melcher-Dallas, IA | 1,313 | 39 | 22.0% |