Last updated: June 24, 2025
In September, the average temperature in Washington Court House, United States hovers around 21°C (69°F), creating a pleasant climate for outdoor activities. However, be prepared for a temperature range that can dip as low as 5°C (42°F) and soar up to 34°C (94°F). This month also sees an average precipitation of 89 mm (3.5 in) over approximately 8 days, contributing to a humidity level of 73%, making the air feel quite comfortable and refreshing.
In September in Washington Court House, the average temperature is 21°C (69°F), with maximums reaching 34°C (94°F) and minimums as low as 5°C (42°F). This varied climate makes it an ideal destination for travelers seeking both warm and cool experiences.
In Washington Court House in September, the precipitation amount is 89 mm (3.5 in) over a span of 8 days.
In Washington Court House in September, humidity is 73%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat stifling and travel a bit more challenging, as the air is dense and can leave you feeling fatigued more quickly.
In Washington Court House 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 Washington Court House.
UV Risk Categories
Weather in Washington Court House varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Washington Court House, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 78 mm (3.1 inches) | 88% | moderate |
| February Weather | 2°C (36°F) | 105 mm (4.1 inches) | 88% | moderate |
| March Weather | 6°C (44°F) | 128 mm (5.0 inches) | 87% | high |
| April Weather | 11°C (53°F) | 122 mm (4.8 inches) | 85% | very high |
| May Weather | 18°C (65°F) | 126 mm (5.0 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 135 mm (5.3 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 131 mm (5.2 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 94 mm (3.7 inches) | 73% | very high |
| September Weather | 21°C (69°F) | 89 mm (3.5 inches) | 73% | very high |
| October Weather | 15°C (58°F) | 97 mm (3.8 inches) | 78% | high |
| November Weather | 6°C (43°F) | 95 mm (3.7 inches) | 89% | moderate |
| December Weather | 3°C (37°F) | 107 mm (4.2 inches) | 87% | moderate |