| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 42°F | 32°F | 2.7" |
| February | 24°F | 44°F | 34°F | 2.6" |
| March | 34°F | 57°F | 44°F | 4.1" |
| April | 43°F | 69°F | 56°F | 4.9" |
| May | 52°F | 77°F | 64°F | 3.9" |
| June | 61°F | 85°F | 73°F | 4.5" |
| July | 65°F | 87°F | 75°F | 4.7" |
| August | 63°F | 87°F | 75°F | 2.7" |
| September | 56°F | 81°F | 67°F | 3.3" |
| October | 45°F | 69°F | 56°F | 3.6" |
| November | 33°F | 57°F | 44°F | 2.9" |
| December | 28°F | 46°F | 36°F | 3.7" |
| Index | Coldstream | Ohio | National |
| Air quality index | 54 | 40 | 42 |
| Pollution index | 23,937,200 | 4,472,386 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 139 |
| Days with moderate air quality | 206 |
| Days w/ poor A.Q. for sensitive groups | 20 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.500% |
| Benzene | 0.180% |
| Carbon Tetrachloride | 0.110% |
| Lead | 0.250% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| Lincoln Heights, OH | 3,359 | 54 | 8.0% |
| Pleasant Hills, OH | 1,323 | 54 | 8.0% |
| Wyoming, OH | 8,540 | 54 | 8.0% |
| Claryville, KY | 2,896 | 54 | 8.0% |
| Bromley, KY | 1,158 | 54 | 8.0% |
| Coldstream, OH | 1,383 | 54 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Highfill, AR | 1,383 | 44 | 12.0% |
| Monrovia, IN | 1,383 | 54 | 8.0% |
| Harwich Center, MA | 1,383 | 36 | 28.0% |
| Bel Air CDP, MD | 1,383 | 46 | 8.0% |
| Tiltonsville, OH | 1,383 | 39 | 22.0% |
| Coldstream, OH | 1,383 | 54 | 8.0% |
Here are the best places to live in Ohio
These are the largest cities in Ohio
Check out the 10 safest cities in Ohio
See the best places to live in Coldstream