Last updated: June 24, 2025
In September, the average temperature in Garrison, United States is 21°C (70°F), with fluctuations ranging from a cool 6°C (42°F) to a warm 34°C (93°F). Expect an average rainfall of 121 mm (4.8 in) over 10 rainy days, and humidity levels around 75% create a cozy atmosphere throughout the month.
In September in Garrison, the average temperature is 21°C (70°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 6°C (42°F). This pleasant climate makes Garrison an ideal destination for travelers seeking a comfortable getaway.
In Garrison in September, the precipitation amount is 121 mm (4.8 in) spread over a period of 10 days.
In Garrison in September, humidity is 75%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that makes exploring the area feel slightly sticky, requiring travelers to stay hydrated and take occasional breaks in the shade to fully enjoy their adventures.
In Garrison 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 Garrison.
UV Risk Categories
Weather in Garrison varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Garrison, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 2°C (35°F) | 63 mm (2.5 inches) | 84% | moderate |
February Weather | 4°C (39°F) | 98 mm (3.9 inches) | 83% | moderate |
March Weather | 7°C (44°F) | 94 mm (3.7 inches) | 83% | high |
April Weather | 12°C (55°F) | 104 mm (4.1 inches) | 81% | very high |
May Weather | 18°C (64°F) | 148 mm (5.8 inches) | 78% | very high |
June Weather | 23°C (73°F) | 129 mm (5.1 inches) | 79% | very high |
July Weather | 26°C (79°F) | 161 mm (6.4 inches) | 74% | very high |
August Weather | 24°C (76°F) | 165 mm (6.5 inches) | 72% | very high |
September Weather | 21°C (70°F) | 121 mm (4.8 inches) | 75% | very high |
October Weather | 16°C (60°F) | 109 mm (4.3 inches) | 81% | high |
November Weather | 7°C (46°F) | 90 mm (3.6 inches) | 85% | moderate |
December Weather | 4°C (39°F) | 100 mm (3.9 inches) | 84% | moderate |