Last updated: June 24, 2025
In Horseheads, United States, the average temperature in September hovers around 17°C (63°F), with a possible minimum of 0°C (32°F) and a maximum reaching up to 32°C (90°F). Expect 93 mm (3.7 in) of precipitation spread across 8 days, contributing to an average humidity level of 78%. Stay prepared for diverse weather conditions!
In September in Horseheads, the average temperature is 17°C (63°F). The maximum can reach 32°C (90°F) and the minimum can be as low as 0°C (32°F). It's a great time to explore Horseheads, so be prepared for both warm days and cool nights.
In Horseheads in September, the total precipitation amount is 93 mm (3.7 in) over the course of 8 days.
In Horseheads in September, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.
In Horseheads 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 Horseheads.
UV Risk Categories
Weather in Horseheads varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Horseheads, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (26°F) | 71 mm (2.8 inches) | 90% | moderate |
| February Weather | -2°C (28°F) | 87 mm (3.4 inches) | 90% | moderate |
| March Weather | 1°C (35°F) | 82 mm (3.2 inches) | 87% | high |
| April Weather | 8°C (46°F) | 118 mm (4.7 inches) | 88% | very high |
| May Weather | 14°C (58°F) | 128 mm (5.0 inches) | 82% | very high |
| June Weather | 19°C (66°F) | 99 mm (3.9 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 137 mm (5.4 inches) | 78% | very high |
| August Weather | 21°C (70°F) | 95 mm (3.8 inches) | 76% | very high |
| September Weather | 17°C (63°F) | 93 mm (3.7 inches) | 78% | very high |
| October Weather | 11°C (53°F) | 140 mm (5.5 inches) | 84% | high |
| November Weather | 3°C (38°F) | 84 mm (3.3 inches) | 89% | moderate |
| December Weather | -1°C (31°F) | 88 mm (3.5 inches) | 86% | low |