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September Weather in Stafford, United States

Last updated: June 24, 2025

In Stafford, United States, the average temperature in September hovers around 23°C (73°F), making it a pleasant time to visit. However, temperatures can fluctuate, with a minimum of 5°C (42°F) and peaks reaching up to 37°C (99°F). Expect around 65 mm (2.5 in) of precipitation over 6 days, complemented by an average humidity of 67%. So pack your bags and enjoy the varied weather!

September Temperature in Stafford

In September in Stafford, the average temperature is 23°C (73°F). Maximums can reach 37°C (99°F), while minimums can drop as low as 5°C (42°F). Be prepared for a wide range of temperatures, so pack accordingly for your travels!

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

The chart illustrates September temperature patterns in Stafford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stafford, September typically has an average temperature of 23°C (73°F), with highs reaching up to 37°C (99°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec333447546577817873574537
Data source: Temperature data for Stafford 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 Stafford

In Stafford in September, the precipitation amount is 65 mm (2.5 in) during a period of 6 days.

September Precipitation Trends in Stafford

The chart displays monthly precipitation patterns in Stafford, 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 Stafford, September typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec2723675116566658165832432
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Stafford

In Stafford in September humidity is 67%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket that makes the air feel thick and slightly sticky, which can be challenging for travelers who prefer cooler, drier conditions.

September Average Humidity in Stafford

This chart illustrates the average monthly humidity levels in Stafford, 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 Stafford is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%67%70%82%82%81%76%67%72%80%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Stafford

In Stafford 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 Stafford.

Maximum UV Index Levels in Stafford for September

The chart shows the monthly maximum UV Index (UVI) for Stafford 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 Stafford typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109753
Data source: Stafford 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 Stafford Compares to Other Months

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

This table compares monthly weather conditions in Stafford, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)27 mm (1.0 inches)75%moderate
February Weather1°C (34°F)23 mm (0.9 inches)76%high
March Weather8°C (47°F)67 mm (2.7 inches)67%high
April Weather12°C (55°F)50 mm (2.0 inches)70%very high
May Weather18°C (65°F)165 mm (6.5 inches)82%very high
June Weather25°C (78°F)66 mm (2.6 inches)82%extreme
July Weather27°C (81°F)65 mm (2.5 inches)81%extreme
August Weather25°C (78°F)81 mm (3.2 inches)76%very high
September Weather23°C (73°F)65 mm (2.5 inches)67%very high
October Weather14°C (57°F)83 mm (3.3 inches)72%high
November Weather7°C (45°F)24 mm (0.9 inches)80%moderate
December Weather3°C (38°F)32 mm (1.2 inches)83%moderate

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