Last updated: June 24, 2025
In East Lansing, United States, the average temperature in September hovers around 18°C (65°F), with fluctuations ranging from a cool 1°C (35°F) to a warm 34°C (94°F). During this month, expect about 94 mm (3.7 in) of precipitation over approximately 10 days, and enjoy a high average humidity of 80%.
In September in East Lansing, the average temperature is 18°C (65°F). Maximums can reach 34°C (94°F), while minimums can dip as low as 1°C (35°F). This variety in temperatures makes it essential for travelers to pack layers to stay comfortable throughout their visit.
In East Lansing in September, the precipitation amount is 94 mm (3.7 in) over a duration of 10 days.
In East Lansing in September, humidity is 80%. With an average temperature of 18°C (65°F), this humidity feels like wandering through a warm, damp blanket, making every step slightly heavy and resulting in a constant sheen of sweat, which can be both refreshing and exhausting for travelers.
In East Lansing 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 East Lansing.
UV Risk Categories
Weather in East Lansing varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in East Lansing, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (26°F) | 65 mm (2.6 inches) | 88% | low |
| February Weather | -3°C (27°F) | 68 mm (2.7 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 68 mm (2.7 inches) | 85% | moderate |
| April Weather | 8°C (47°F) | 89 mm (3.5 inches) | 86% | very high |
| May Weather | 15°C (60°F) | 125 mm (4.9 inches) | 80% | very high |
| June Weather | 21°C (70°F) | 106 mm (4.2 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 82 mm (3.2 inches) | 80% | very high |
| August Weather | 22°C (72°F) | 66 mm (2.6 inches) | 80% | very high |
| September Weather | 18°C (65°F) | 94 mm (3.7 inches) | 80% | high |
| October Weather | 12°C (53°F) | 118 mm (4.6 inches) | 84% | moderate |
| November Weather | 4°C (39°F) | 67 mm (2.6 inches) | 89% | moderate |
| December Weather | 0°C (32°F) | 59 mm (2.3 inches) | 86% | low |