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September Weather in Graham, United States

Last updated: June 24, 2025

In September, the average temperature in Graham, United States hovers around 26°C (79°F), providing a warm atmosphere. However, be prepared for temperature fluctuations with a minimum of 8°C (47°F) and a scorching maximum of 39°C (102°F). During this time, expect approximately 92 mm (3.6 in) of precipitation over the span of 7 days, coupled with an average humidity level of 64%. Stay hydrated and enjoy the diverse weather!

September Temperature in Graham

In September in Graham, the average temperature is 26°C (79°F), with maximums reaching 39°C (102°F) and minimums dropping as low as 8°C (47°F). Be prepared for warm days and cooler nights when traveling 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 26°C (79°F), with highs reaching up to 39°C (102°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec454860657583878679675650
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 precipitation amount is 92 mm (3.6 in) over the course of 7 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 92 mm (3.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec415073699761275392883442
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 64%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as the air clings to your skin and the heat amplifies.

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 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
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 Weather7°C (46°F)41 mm (1.6 inches)77%moderate
February Weather9°C (48°F)50 mm (2.0 inches)76%high
March Weather15°C (60°F)73 mm (2.9 inches)74%very high
April Weather19°C (66°F)69 mm (2.7 inches)75%very high
May Weather24°C (75°F)97 mm (3.8 inches)80%extreme
June Weather28°C (83°F)61 mm (2.4 inches)80%extreme
July Weather30°C (87°F)27 mm (1.1 inches)75%extreme
August Weather30°C (86°F)53 mm (2.1 inches)67%extreme
September Weather26°C (79°F)92 mm (3.6 inches)64%very high
October Weather19°C (67°F)88 mm (3.5 inches)70%very high
November Weather13°C (56°F)34 mm (1.3 inches)82%high
December Weather10°C (51°F)42 mm (1.7 inches)85%moderate

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