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September Weather in Graham, United States

Last updated: June 24, 2025

In Graham, United States, the average temperature in September hovers around 23°C (73°F), with extremes ranging from a chilly 7°C (44°F) to a sweltering 36°C (96°F). Expect 128 mm (5.0 in) of precipitation over approximately 10 days, contributing to an average humidity of 79%.

September Temperature in Graham

In September in Graham, the average temperature is 23°C (73°F). Maximum temperatures can reach 36°C (96°F), while minimums can drop to as low as 7°C (44°F). Be prepared for a mix of warm days and cooler evenings when traveling to Graham during this time.

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

The chart illustrates September temperature patterns in Graham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Graham, September typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (96°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec424752616975807873645045
Data source: Temperature data for Graham 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 Graham

In Graham in September, the total precipitation amount is 128 mm (5.0 in) recorded over a span of 10 days.

September Precipitation Trends in Graham

The chart displays monthly precipitation patterns in Graham, 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 Graham, September typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec88117821071191081061301289178106
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Graham

In Graham in September humidity is 79%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace that clings to the skin, making travel feel both invigorating and slightly exhausting as the air wraps around you like a damp blanket.

September Average Humidity in Graham

This chart illustrates the average monthly humidity levels in Graham, 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 Graham is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%81%80%81%81%81%80%79%80%86%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Graham

In Graham 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 Graham.

Maximum UV Index Levels in Graham for September

The chart shows the monthly maximum UV Index (UVI) for Graham 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 Graham typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109853
Data source: Graham 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 Graham Compares to Other Months

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

This table compares monthly weather conditions in Graham, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)88 mm (3.5 inches)85%moderate
February Weather8°C (47°F)117 mm (4.6 inches)82%high
March Weather11°C (52°F)82 mm (3.2 inches)81%very high
April Weather16°C (61°F)107 mm (4.2 inches)80%very high
May Weather21°C (70°F)119 mm (4.7 inches)81%extreme
June Weather24°C (76°F)108 mm (4.2 inches)81%extreme
July Weather27°C (80°F)106 mm (4.2 inches)81%extreme
August Weather25°C (78°F)130 mm (5.1 inches)80%very high
September Weather23°C (73°F)128 mm (5.0 inches)79%very high
October Weather18°C (64°F)91 mm (3.6 inches)80%very high
November Weather10°C (50°F)78 mm (3.1 inches)85%moderate
December Weather7°C (46°F)106 mm (4.2 inches)86%moderate

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