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September Weather in Terrace Heights, United States

Last updated: June 24, 2025

In September, the average temperature in Terrace Heights, United States hovers around 18°C (65°F). However, be prepared for a range of temperatures, with minimums dropping to 3°C (38°F) and peaks soaring to 38°C (100°F). Rainfall is modest, with an average precipitation of 12 mm (0.5 in) spread over just 3 days. Coupled with an average humidity of 62%, this season offers a delightful, if variable, climate.

September Temperature in Terrace Heights

In September in Terrace Heights, the average temperature is 18°C (65°F). Maximums can reach 38°C (100°F) and minimums can be as low as 3°C (38°F). Travelers should prepare for a range of temperatures, making it essential to pack both light clothing for warm days and warmer layers for the chilly nights.

September Weather in Terrace Heights: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Terrace Heights, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Terrace Heights, September typically has an average temperature of 18°C (65°F), with highs reaching up to 38°C (100°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec323442516269767565504034
Data source: Temperature data for Terrace Heights 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 Terrace Heights

In Terrace Heights in September, the precipitation amount is 12 mm (0.5 in) during a span of 3 days.

September Precipitation Trends in Terrace Heights

The chart displays monthly precipitation patterns in Terrace Heights, 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 Terrace Heights, September typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec636430231361412374259
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Terrace Heights

In Terrace Heights in September, humidity is 62%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet mildly sticky, perfect for leisurely strolls but a bit challenging for vigorous excursions.

September Average Humidity in Terrace Heights

This chart illustrates the average monthly humidity levels in Terrace Heights, 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 Terrace Heights is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Terrace Heights

In Terrace Heights 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 Terrace Heights.

Maximum UV Index Levels in Terrace Heights for September

The chart shows the monthly maximum UV Index (UVI) for Terrace Heights 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 Terrace Heights typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23579101097532
Data source: Terrace Heights 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 Terrace Heights Compares to Other Months

Weather in Terrace Heights varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Terrace Heights, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Terrace Heights, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)63 mm (2.5 inches)86%low
February Weather1°C (34°F)63 mm (2.5 inches)86%moderate
March Weather6°C (42°F)30 mm (1.2 inches)87%moderate
April Weather10°C (51°F)23 mm (0.9 inches)84%high
May Weather16°C (62°F)13 mm (0.5 inches)81%very high
June Weather21°C (70°F)6 mm (0.2 inches)82%very high
July Weather25°C (77°F)1 mm (0.0 inches)79%very high
August Weather24°C (76°F)4 mm (0.2 inches)63%very high
September Weather18°C (65°F)12 mm (0.5 inches)62%high
October Weather10°C (51°F)37 mm (1.4 inches)83%moderate
November Weather4°C (40°F)42 mm (1.7 inches)89%moderate
December Weather1°C (34°F)59 mm (2.3 inches)88%low

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