| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 20°F | 34°F | 27°F | 3.5" |
| February | 19°F | 32°F | 26°F | 2.0" |
| March | 27°F | 45°F | 36°F | 2.7" |
| April | 37°F | 60°F | 48°F | 4.7" |
| May | 48°F | 71°F | 59°F | 3.1" |
| June | 60°F | 83°F | 72°F | 2.9" |
| July | 60°F | 83°F | 72°F | 3.5" |
| August | 61°F | 82°F | 72°F | 5.8" |
| September | 54°F | 79°F | 66°F | 3.3" |
| October | 47°F | 66°F | 56°F | 4.2" |
| November | 33°F | 49°F | 41°F | 4.2" |
| December | 24°F | 34°F | 29°F | 2.2" |
| Index | Zeeland | Michigan | National |
| Air quality index | 38 | 69 | 42 |
| Pollution index | 1,797,130 | 4,161,606 | 2,726,193 |
| Measurement | Total |
| Days measured | 276 |
| Days with good air quality | 227 |
| Days with moderate air quality | 45 |
| Days w/ poor A.Q. for sensitive groups | 4 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.002% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Grandville, MI | 16,236 | 38 | 24.0% |
| Walker, MI | 25,711 | 38 | 24.0% |
| Holland, MI | 34,035 | 38 | 24.0% |
| Beechwood, MI | 3,076 | 38 | 24.0% |
| Saugatuck, MI | 929 | 38 | 24.0% |
| Zeeland, MI | 5,741 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Wellston, OH | 5,742 | 25 | 50.0% |
| Vail, CO | 5,739 | 47 | 6.0% |
| Richmond, MO | 5,739 | 47 | 6.0% |
| Belvedere, SC | 5,743 | 47 | 6.0% |
| Severance, CO | 5,738 | 45 | 10.0% |
| Zeeland, MI | 5,741 | 38 | 24.0% |