Last updated: June 24, 2025
In Cortland West, United States, the average temperature in September hovers around 17°C (62°F). However, temperatures can fluctuate significantly, with minimums dipping to -1°C (31°F) and maximums soaring up to 32°C (90°F). During this month, expect about 99 mm (3.9 in) of precipitation over 10 days, contributing to an average humidity level of 78%. Prepare for a season of diverse weather!
In September in Cortland West, the average temperature is 17°C (62°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as -1°C (31°F). Be sure to pack for a range of temperatures to enjoy your travels comfortably.
In Cortland West in September, the total precipitation amount is 99 mm (3.9 in) spread over a period of 10 days.
In Cortland West in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.
In Cortland West 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 Cortland West.
UV Risk Categories
Weather in Cortland West varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Cortland West, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 88 mm (3.5 inches) | 90% | moderate |
| February Weather | -3°C (27°F) | 96 mm (3.8 inches) | 90% | moderate |
| March Weather | 1°C (34°F) | 91 mm (3.6 inches) | 87% | high |
| April Weather | 7°C (45°F) | 124 mm (4.9 inches) | 88% | very high |
| May Weather | 14°C (57°F) | 137 mm (5.4 inches) | 82% | very high |
| June Weather | 19°C (66°F) | 105 mm (4.1 inches) | 79% | very high |
| July Weather | 21°C (71°F) | 163 mm (6.4 inches) | 78% | very high |
| August Weather | 20°C (69°F) | 116 mm (4.6 inches) | 76% | very high |
| September Weather | 17°C (62°F) | 99 mm (3.9 inches) | 78% | very high |
| October Weather | 11°C (52°F) | 155 mm (6.1 inches) | 84% | high |
| November Weather | 3°C (37°F) | 102 mm (4.0 inches) | 89% | moderate |
| December Weather | -1°C (30°F) | 102 mm (4.0 inches) | 86% | low |