Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 12°F | 30°F | 21°F | 0.8" |
February | 14°F | 34°F | 23°F | 1.0" |
March | 28°F | 49°F | 37°F | 2.2" |
April | 39°F | 63°F | 49°F | 4.1" |
May | 49°F | 73°F | 60°F | 5.2" |
June | 60°F | 83°F | 71°F | 7.1" |
July | 64°F | 86°F | 75°F | 4.2" |
August | 62°F | 83°F | 71°F | 5.5" |
September | 53°F | 77°F | 63°F | 2.8" |
October | 41°F | 64°F | 51°F | 4.0" |
November | 28°F | 49°F | 38°F | 3.7" |
December | 16°F | 33°F | 24°F | 2.5" |
Index | Granville | Iowa | National |
Air quality index | 35 | 39 | 50 |
Pollution index | 890,079 | 1,643,836 | 5,066,862 |
Measurement | Total |
Days measured | 364 |
Days with good air quality | 322 |
Days with moderate air quality | 42 |
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 | 0.004% |
Mercury | 0.000% |
City, State | Population | Air Quality Index | National Avg. |
Alton, IA | 1,325 | 35 | 30% |
Orange City, IA | 6,153 | 35 | 30% |
Archer, IA | 177 | 35 | 30% |
Primghar, IA | 973 | 35 | 30% |
Le Mars, IA | 9,826 | 35 | 30% |
Granville, IA | 362 | 35 | 30% |
City, State | Population | Air Quality Index | National Avg. |
San Lucas, CA | 362 | 37 | 26% |
Ballard, CA | 362 | 44 | 12% |
Bullhead, SD | 362 | 36 | 28% |
Johnson Village, CO | 362 | 16 | 68% |
Eunola, AL | 362 | 35 | 30% |
Granville, IA | 362 | 35 | 30% |