Last updated: June 24, 2025
In September, the average temperature in Ashton-Sandy Spring, United States hovers around 21°C (71°F). Expect a temperature range that can dip to a chilly 6°C (43°F) and rise to a scorching 35°C (95°F). Prepare for some rain, as 105 mm (4.1 in) of precipitation typically falls over 10 days, while the average humidity sits at a comfortable 75%. Enjoy the diverse climate this month has to offer!
In September in Ashton-Sandy Spring, the average temperature is 21°C (71°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 6°C (43°F). Overall, it's a great time to explore Ashton-Sandy Spring with warm days and cooler nights, perfect for outdoor adventures.
In Ashton-Sandy Spring in September, the precipitation amount is 105 mm (4.1 in) over the course of 10 days.
In Ashton-Sandy Spring in September, humidity is 75%. With an average temperature of 21°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel slightly uncomfortable but offering a lush, vibrant atmosphere that invites exploration at a leisurely pace.
In Ashton-Sandy Spring 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 Ashton-Sandy Spring.
UV Risk Categories
Weather in Ashton-Sandy Spring varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ashton-Sandy Spring, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 60 mm (2.4 inches) | 84% | moderate |
| February Weather | 4°C (40°F) | 99 mm (3.9 inches) | 83% | moderate |
| March Weather | 7°C (45°F) | 89 mm (3.5 inches) | 83% | high |
| April Weather | 13°C (56°F) | 94 mm (3.7 inches) | 81% | very high |
| May Weather | 18°C (65°F) | 139 mm (5.5 inches) | 78% | very high |
| June Weather | 23°C (74°F) | 133 mm (5.2 inches) | 79% | very high |
| July Weather | 26°C (80°F) | 168 mm (6.6 inches) | 74% | very high |
| August Weather | 25°C (77°F) | 148 mm (5.8 inches) | 72% | very high |
| September Weather | 21°C (71°F) | 105 mm (4.1 inches) | 75% | very high |
| October Weather | 16°C (61°F) | 106 mm (4.2 inches) | 81% | high |
| November Weather | 8°C (47°F) | 84 mm (3.3 inches) | 85% | moderate |
| December Weather | 4°C (40°F) | 95 mm (3.7 inches) | 84% | moderate |