Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 12°F | 28°F | 20°F | 1.5" |
February | 14°F | 30°F | 22°F | 2.6" |
March | 29°F | 50°F | 38°F | 5.4" |
April | 38°F | 62°F | 50°F | 7.2" |
May | 51°F | 73°F | 61°F | 8.0" |
June | 62°F | 83°F | 72°F | 7.9" |
July | 63°F | 85°F | 74°F | 5.1" |
August | 62°F | 82°F | 72°F | 6.6" |
September | 55°F | 79°F | 66°F | 5.4" |
October | 44°F | 65°F | 54°F | 5.7" |
November | 28°F | 49°F | 38°F | 2.2" |
December | 13°F | 26°F | 20°F | 1.8" |
Index | Grundy Center | Iowa | National |
Air quality index | 39 | 39 | 42 |
Pollution index | 416,114 | 1,154,535 | 2,726,193 |
Measurement | Total |
Days measured | 363 |
Days with good air quality | 286 |
Days with moderate air quality | 77 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.004% |
Carbon Tetrachloride | 0.001% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Union, IA | 412 | 37 | 26.0% |
Liscomb, IA | 381 | 37 | 26.0% |
Whitten, IA | 137 | 37 | 26.0% |
Conrad, IA | 1,224 | 39 | 22.0% |
Ackley, IA | 1,788 | 39 | 22.0% |
Grundy Center, IA | 2,671 | 39 | 22.0% |
City | Population | Air Quality Index | National Avg. |
Fairmount, IN | 2,671 | 35 | 30.0% |
Lisbon, OH | 2,671 | 6 | 88.0% |
Morton, PA | 2,671 | 51 | 2.0% |
Lake Wazeecha, WI | 2,671 | 34 | 32.0% |
Saint-Mathieu-de-Beloeil, QC | 2,671 | n/a | |
Grundy Center, IA | 2,671 | 39 | 22.0% |