Last updated: June 24, 2025
In September, the average temperature in Ballston Lake, United States hovers around 18°C (64°F), making it a pleasant time to visit. However, be prepared for a temperature range that can dip as low as 1°C (35°F) and soar up to 33°C (91°F). Expect some rain as well, with an average precipitation of 99 mm (3.9 in) spread over 9 days. Remember to stay refreshed—a typical humidity level of 72% is to be anticipated!
In September in Ballston Lake, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 1°C (35°F). Travelers should be prepared for a range of temperatures and pack accordingly for both warm days and cooler evenings.
In Ballston Lake in September, the precipitation amount is 99 mm (3.9 in) during a span of 9 days.
In Ballston Lake in September, humidity is 72%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as the air clings to your skin, leaving you longing for a refreshing breeze.
In Ballston Lake in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Ballston Lake.
UV Risk Categories
Weather in Ballston Lake varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ballston Lake, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 81 mm (3.2 inches) | 89% | moderate |
| February Weather | -2°C (28°F) | 98 mm (3.8 inches) | 88% | moderate |
| March Weather | 1°C (35°F) | 82 mm (3.2 inches) | 86% | high |
| April Weather | 8°C (47°F) | 138 mm (5.4 inches) | 84% | very high |
| May Weather | 15°C (59°F) | 103 mm (4.0 inches) | 76% | very high |
| June Weather | 19°C (67°F) | 104 mm (4.1 inches) | 72% | very high |
| July Weather | 23°C (73°F) | 142 mm (5.6 inches) | 66% | very high |
| August Weather | 22°C (71°F) | 103 mm (4.1 inches) | 64% | very high |
| September Weather | 18°C (64°F) | 99 mm (3.9 inches) | 72% | high |
| October Weather | 12°C (53°F) | 158 mm (6.2 inches) | 81% | moderate |
| November Weather | 3°C (38°F) | 109 mm (4.3 inches) | 87% | moderate |
| December Weather | -1°C (30°F) | 110 mm (4.3 inches) | 84% | low |