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September Weather in Harrison, United States

Last updated: June 24, 2025

In Harrison, United States, the average temperature in September is a pleasant 23°C (74°F). Expect a range from a minimum of 8°C (47°F) to a maximum of 34°C (94°F). During this time, precipitation amounts reach about 55 mm (2.2 in) over 6 days, contributing to an average humidity of 64%. Enjoy the diverse weather while exploring everything this vibrant locale has to offer!

September Temperature in Harrison

In September in Harrison, the average temperature is a pleasant 23°C (74°F). Maximum temperatures can soar to 34°C (94°F), while minimums can dip as low as 8°C (47°F). This makes Harrison an ideal destination for travelers seeking warm weather with cooler evenings for comfortable exploration.

September Weather in Harrison: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Harrison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harrison, September typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (94°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec384151576775797773614843
Data source: Temperature data for Harrison generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Harrison

In Harrison in September, the total precipitation amount is 55 mm (2.2 in) spread over 6 days.

September Precipitation Trends in Harrison

The chart displays monthly precipitation patterns in Harrison, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Harrison, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec751001361501769481133551127379
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Harrison

In Harrison in September, humidity is 64%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration enjoyable yet slightly sticky, so it's best to stay hydrated and take breaks in the shade while traveling.

September Average Humidity in Harrison

This chart illustrates the average monthly humidity levels in Harrison, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Harrison is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Harrison

In Harrison in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Harrison.

Maximum UV Index Levels in Harrison for September

The chart shows the monthly maximum UV Index (UVI) for Harrison in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Harrison typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Harrison September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Harrison Compares to Other Months

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.

This table compares monthly weather conditions in Harrison, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)75 mm (3.0 inches)81%moderate
February Weather5°C (41°F)100 mm (3.9 inches)78%high
March Weather11°C (51°F)136 mm (5.4 inches)76%very high
April Weather14°C (57°F)150 mm (5.9 inches)78%very high
May Weather20°C (67°F)176 mm (6.9 inches)83%extreme
June Weather24°C (76°F)94 mm (3.7 inches)83%extreme
July Weather26°C (80°F)81 mm (3.2 inches)78%extreme
August Weather25°C (77°F)133 mm (5.2 inches)68%very high
September Weather23°C (74°F)55 mm (2.2 inches)64%very high
October Weather16°C (61°F)112 mm (4.4 inches)70%high
November Weather9°C (48°F)73 mm (2.9 inches)83%moderate
December Weather6°C (44°F)79 mm (3.1 inches)87%moderate

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