Last updated: June 24, 2025
In September, the average temperature in Glyndon, United States hovers around 16°C (61°F). Expect a wide temperature range, with a minimum of -2°C (29°F) and a maximum peaking at 32°C (90°F). Prepare for some rain, as the region receives around 87 mm (3.4 in) of precipitation over 9 days, coupled with an average humidity of 77%.
In September in Glyndon, the average temperature is 16°C (61°F). The maximum can reach 32°C (90°F), while the minimum can drop to as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and chilly nights.
In Glyndon in September, the precipitation amount is 87 mm (3.4 in), occurring over a span of 9 days.
In Glyndon in September humidity is 77%. With an average temperature of 16°C (61°F), this humidity feels like a slight heaviness in the air, making every step feel a touch more effortful while traveling. The dampness clings to your skin, adding a layer of discomfort, yet the mild temperature invites you to explore the surroundings, blending the challenge of the humidity with an opportunity for a refreshing adventure.
In Glyndon 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 Glyndon.
UV Risk Categories
Weather in Glyndon varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Glyndon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -12°C (11°F) | 19 mm (0.7 inches) | 90% | low |
| February Weather | -12°C (10°F) | 21 mm (0.8 inches) | 92% | moderate |
| March Weather | -2°C (29°F) | 27 mm (1.1 inches) | 85% | moderate |
| April Weather | 4°C (40°F) | 50 mm (2.0 inches) | 81% | high |
| May Weather | 14°C (57°F) | 51 mm (2.0 inches) | 75% | very high |
| June Weather | 21°C (70°F) | 89 mm (3.5 inches) | 79% | very high |
| July Weather | 23°C (73°F) | 69 mm (2.7 inches) | 76% | very high |
| August Weather | 20°C (69°F) | 97 mm (3.8 inches) | 78% | very high |
| September Weather | 16°C (61°F) | 87 mm (3.4 inches) | 77% | high |
| October Weather | 7°C (44°F) | 85 mm (3.3 inches) | 79% | moderate |
| November Weather | -2°C (29°F) | 22 mm (0.8 inches) | 86% | moderate |
| December Weather | -8°C (18°F) | 41 mm (1.6 inches) | 86% | low |