Last updated: June 24, 2025
In September, the average temperature in Coal Grove, United States hovers around 21°C (71°F), providing a comfortable climate for outdoor activities. Expect a minimum temperature of 7°C (45°F) and a maximum of 37°C (98°F), so be prepared for a range of conditions. During this time, you’ll also encounter about 110 mm (4.3 in) of precipitation over roughly 8 days, with an average humidity of 73% adding a touch of moisture to the air.
In September, in Coal Grove, the average temperature is 21°C (71°F), with maximums reaching 37°C (98°F) and minimums dropping to as low as 7°C (45°F). This makes Coal Grove a great destination for travelers seeking a warm climate with a chance of cooler evenings.
In Coal Grove in September, the precipitation amount is 110 mm (4.3 in) over a period of 8 days.
In Coal Grove in September humidity is 73%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities a bit uncomfortable, but with proper hydration and breaks in the shade, it’s still manageable for traveling.
In Coal Grove in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Coal Grove.
UV Risk Categories
Weather in Coal Grove varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Coal Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 91 mm (3.6 inches) | 88% | moderate |
| February Weather | 5°C (41°F) | 130 mm (5.1 inches) | 88% | moderate |
| March Weather | 8°C (47°F) | 107 mm (4.2 inches) | 87% | high |
| April Weather | 13°C (56°F) | 125 mm (4.9 inches) | 85% | very high |
| May Weather | 19°C (66°F) | 128 mm (5.0 inches) | 81% | very high |
| June Weather | 23°C (73°F) | 166 mm (6.5 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 109 mm (4.3 inches) | 81% | very high |
| August Weather | 24°C (76°F) | 130 mm (5.1 inches) | 73% | very high |
| September Weather | 21°C (71°F) | 110 mm (4.3 inches) | 73% | very high |
| October Weather | 16°C (60°F) | 114 mm (4.5 inches) | 78% | high |
| November Weather | 7°C (46°F) | 76 mm (3.0 inches) | 89% | moderate |
| December Weather | 5°C (41°F) | 118 mm (4.6 inches) | 87% | moderate |