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August Weather in Allen, United States

Last updated: June 24, 2025

In August, the average temperature in Allen, United States is a warm 27°C (82°F), with a range that can dip to a minimum of 18°C (64°F) and spike up to a maximum of 39°C (102°F). Expect around 70 mm (2.8 in) of precipitation spread over 10 days, contributing to a pleasant average humidity level of 68%.

August Temperature in Allen

In August in Allen, the average temperature is 27°C (82°F). Maximum temperatures can reach 39°C (102°F), while minimums can drop as low as 18°C (64°F). Travelers should prepare for warm weather while ensuring they have options for cooler evenings.

August Weather in Allen: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Allen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Allen, August typically has an average temperature of 27°C (82°F), with highs reaching up to 39°C (102°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec414355617079838176635246
Data source: Temperature data for Allen 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.

August Precipitation in Allen

In Allen in August, the precipitation amount is 70 mm (2.8 in) over a period of 10 days.

August Precipitation Trends in Allen

The chart displays monthly precipitation patterns in Allen, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Allen, August typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6881891361717769701061175157
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Allen

In Allen in August, humidity is 68%. With an average temperature of 27°C (82°F), this humidity feels like a warm, sticky embrace that can make exploring the area a bit uncomfortable. Travelers may find themselves sweating more than usual, so staying hydrated and taking breaks in shaded areas will be essential for a pleasant experience.

August Average Humidity in Allen

This chart illustrates the average monthly humidity levels in Allen, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Allen is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Allen

In Allen in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Allen.

Maximum UV Index Levels in Allen for August

The chart shows the monthly maximum UV Index (UVI) for Allen in August, 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 August, the maximum UV index in Allen typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111119754
Data source: Allen August 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 August Weather in Allen Compares to Other Months

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

This table compares monthly weather conditions in Allen, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)68 mm (2.7 inches)79%moderate
February Weather6°C (44°F)81 mm (3.2 inches)78%high
March Weather13°C (56°F)89 mm (3.5 inches)75%high
April Weather16°C (61°F)136 mm (5.4 inches)75%very high
May Weather21°C (71°F)171 mm (6.7 inches)83%very high
June Weather26°C (79°F)77 mm (3.0 inches)81%extreme
July Weather28°C (83°F)68 mm (2.7 inches)78%extreme
August Weather27°C (82°F)70 mm (2.8 inches)68%extreme
September Weather25°C (77°F)106 mm (4.2 inches)64%very high
October Weather17°C (64°F)117 mm (4.6 inches)71%high
November Weather11°C (52°F)51 mm (2.0 inches)82%moderate
December Weather8°C (47°F)57 mm (2.2 inches)87%moderate

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