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August Weather in Sterling, United States

Last updated: June 24, 2025

In August, the average temperature in Sterling, United States is a pleasant 25°C (78°F). However, be prepared for the temperature to swing, with minimums dipping to 13°C (55°F) and maximums soaring to 39°C (102°F). Expect 92 mm (3.6 in) of rainfall spread over 9 days, contributing to a high average humidity of 80% that may leave you feeling quite warm and slightly sticky.

August Temperature in Sterling

In August in Sterling, the average temperature is 25°C (78°F). Maximum temperatures can reach 39°C (102°F), while minimum temperatures can drop as low as 13°C (55°F). This range makes it an ideal time for travelers seeking warm weather, but it's wise to pack for both hot days and cooler nights.

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

The chart illustrates August temperature patterns in Sterling, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sterling, August typically has an average temperature of 25°C (78°F), with highs reaching up to 39°C (102°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec323347546578817772574537
Data source: Temperature data for Sterling 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 Sterling

In Sterling in August, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.

August Precipitation Trends in Sterling

The chart displays monthly precipitation patterns in Sterling, 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 Sterling, August typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2727695416072709265852629
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Sterling

In Sterling in August, humidity is 80%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket enveloping you, making every outdoor activity feel more strenuous and steaming, while also causing you to seek out shade and refreshment more frequently.

August Average Humidity in Sterling

This chart illustrates the average monthly humidity levels in Sterling, 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 Sterling is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sterling

In Sterling in August, 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 Sterling.

Maximum UV Index Levels in Sterling for August

The chart shows the monthly maximum UV Index (UVI) for Sterling 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 Sterling typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109753
Data source: Sterling 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 Sterling Compares to Other Months

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

This table compares monthly weather conditions in Sterling, showing how August’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)74%moderate
February Weather1°C (33°F)27 mm (1.1 inches)78%moderate
March Weather8°C (47°F)69 mm (2.7 inches)67%high
April Weather12°C (55°F)54 mm (2.1 inches)70%very high
May Weather18°C (65°F)160 mm (6.3 inches)82%very high
June Weather25°C (78°F)72 mm (2.9 inches)81%extreme
July Weather27°C (81°F)70 mm (2.8 inches)80%extreme
August Weather25°C (78°F)92 mm (3.6 inches)80%very high
September Weather22°C (73°F)65 mm (2.6 inches)73%very high
October Weather14°C (57°F)85 mm (3.4 inches)71%high
November Weather7°C (45°F)26 mm (1.0 inches)79%moderate
December Weather3°C (37°F)29 mm (1.2 inches)83%moderate

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