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August Weather in Frederick, United States

Last updated: June 24, 2025

In August, the average temperature in Frederick, United States is a warm 29°C (84°F), perfect for outdoor activities. Visitors can expect a minimum chill of 17°C (62°F) and occasional peaks reaching up to 42°C (107°F). With a precipitation amount of 37 mm (1.5 in) spread across 5 days, it's wise to be prepared for some rain. The air is quite humid, with an average humidity level of 72%, adding a tropical feel to the atmosphere.

August Temperature in Frederick

In August in Frederick, the average temperature is 29°C (84°F). Maximums can reach 42°C (107°F), and minimums can be as low as 17°C (62°F). Be prepared for hot days and cooler evenings when traveling during this time.

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

The chart illustrates August temperature patterns in Frederick, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Frederick, August typically has an average temperature of 29°C (84°F), with highs reaching up to 42°C (107°F) and lows dropping to around 17°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec414356627281858477645246
Data source: Temperature data for Frederick 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 Frederick

In Frederick in August, the precipitation amount is 37 mm (1.5 in) spread over a period of 5 days.

August Precipitation Trends in Frederick

The chart displays monthly precipitation patterns in Frederick, 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 Frederick, August typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec3530699811558283786692229
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Frederick

In Frederick in August humidity is 72%. With an average temperature of 29°C (84°F), this humidity feels like walking through a warm, damp sponge, making travel uncomfortable as the heat clings to your skin and drains your energy.

August Average Humidity in Frederick

This chart illustrates the average monthly humidity levels in Frederick, 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 Frederick is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%70%72%82%82%80%72%64%71%81%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Frederick

In Frederick 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 Frederick.

Maximum UV Index Levels in Frederick for August

The chart shows the monthly maximum UV Index (UVI) for Frederick 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 Frederick typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110854
Data source: Frederick 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 Frederick Compares to Other Months

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

This table compares monthly weather conditions in Frederick, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)35 mm (1.4 inches)76%moderate
February Weather6°C (43°F)30 mm (1.2 inches)76%high
March Weather13°C (56°F)69 mm (2.7 inches)70%very high
April Weather17°C (62°F)98 mm (3.9 inches)72%very high
May Weather22°C (72°F)115 mm (4.5 inches)82%extreme
June Weather27°C (81°F)58 mm (2.3 inches)82%extreme
July Weather29°C (85°F)28 mm (1.1 inches)80%extreme
August Weather29°C (84°F)37 mm (1.5 inches)72%extreme
September Weather25°C (77°F)86 mm (3.4 inches)64%very high
October Weather18°C (64°F)69 mm (2.7 inches)71%very high
November Weather11°C (52°F)22 mm (0.9 inches)81%moderate
December Weather8°C (46°F)29 mm (1.1 inches)84%moderate

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