| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 43°F | 33°F | 2.3" |
| February | 25°F | 45°F | 34°F | 1.7" |
| March | 33°F | 56°F | 43°F | 2.9" |
| April | 42°F | 68°F | 55°F | 3.7" |
| May | 51°F | 76°F | 63°F | 4.5" |
| June | 60°F | 84°F | 72°F | 3.9" |
| July | 64°F | 88°F | 76°F | 3.3" |
| August | 62°F | 86°F | 74°F | 3.1" |
| September | 56°F | 80°F | 67°F | 3.3" |
| October | 45°F | 68°F | 56°F | 4.2" |
| November | 35°F | 57°F | 45°F | 2.4" |
| December | 28°F | 47°F | 37°F | 3.2" |
| Index | Ranson | West Virginia | National |
| Air quality index | 38 | 126 | 42 |
| Pollution index | 909,202 | 1,996,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 333 |
| Days with moderate air quality | 32 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.060% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Boyce, VA | 867 | 38 | 24.0% |
| Shenandoah Retreat, VA | 550 | 38 | 24.0% |
| Shannondale, WV | 3,364 | 38 | 24.0% |
| Hillsboro, VA | 197 | 38 | 24.0% |
| Charles Town, WV | 5,985 | 38 | 24.0% |
| Ranson, WV | 5,217 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| DeWitt, IA | 5,215 | 42 | 16.0% |
| Deer Lake, NL | 5,214 | n/a | |
| McGregor, TX | 5,212 | 38 | 24.0% |
| Hanwell, NB | 5,222 | n/a | |
| Brewton, AL | 5,210 | 41 | 18.0% |
| Ranson, WV | 5,217 | 38 | 24.0% |
Here are the best places to live in West Virginia
These are the 10 most affordable cities in West Virginia
Check out the 10 safest cities in West Virginia
See the best places to live in & around Ranson