Last updated: June 24, 2025
In Harrison, United States, the average temperature in September hovers around 17°C (62°F). Expect a range from a chilly -1°C (30°F) to a sizzling 34°C (94°F). During this month, you can anticipate approximately 82 mm (3.2 in) of precipitation spread over 10 days, with an average humidity level of 80%. Prepare for a diverse meteorological experience!
In September in Harrison, the average temperature is 17°C (62°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as -1°C (30°F). This diverse temperature range makes Harrison an ideal destination for travelers seeking both warm and cooler weather experiences.
In Harrison in September, the total precipitation amount is 82 mm (3.2 in) observed over a span of 10 days.
In Harrison in September, humidity is 80%. With an average temperature of 17°C (62°F), this humidity feels like a heavy blanket wrapping around you, making travel sticky and uncomfortable, and often leaving you longing for a refreshing breeze.
In Harrison 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 Harrison.
UV Risk Categories
Weather in Harrison varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Harrison, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 53 mm (2.1 inches) | 88% | low |
| February Weather | -5°C (23°F) | 51 mm (2.0 inches) | 87% | moderate |
| March Weather | 1°C (33°F) | 53 mm (2.1 inches) | 85% | moderate |
| April Weather | 6°C (44°F) | 87 mm (3.4 inches) | 86% | very high |
| May Weather | 14°C (57°F) | 106 mm (4.2 inches) | 80% | very high |
| June Weather | 19°C (67°F) | 107 mm (4.2 inches) | 80% | very high |
| July Weather | 22°C (73°F) | 81 mm (3.2 inches) | 80% | very high |
| August Weather | 21°C (70°F) | 92 mm (3.6 inches) | 80% | very high |
| September Weather | 17°C (62°F) | 82 mm (3.2 inches) | 80% | high |
| October Weather | 10°C (50°F) | 125 mm (4.9 inches) | 84% | moderate |
| November Weather | 2°C (36°F) | 55 mm (2.1 inches) | 89% | moderate |
| December Weather | -2°C (29°F) | 62 mm (2.4 inches) | 86% | low |