August Weather in Lancaster, United States

Last updated: June 24, 2025

In Lancaster, United States, the average temperature in August hovers around 27°C (81°F), with minimums dipping to 16°C (61°F) and soaring to a sweltering 41°C (106°F). Expect very little rain during this time, as precipitation amounts to a mere 1 mm (0.1 in) over the course of 0 days. The average humidity is relatively low at 39%, making for a warm, dry atmosphere.

August Temperature in Lancaster

In August in Lancaster, the average temperature is 27°C (81°F), with maximums reaching up to 41°C (106°F) and minimums dipping as low as 16°C (61°F). This makes it essential for travelers to pack both lightweight clothing for the heat and a light jacket for cooler evenings.

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

The chart illustrates August temperature patterns in Lancaster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lancaster, August typically has an average temperature of 27°C (81°F), with highs reaching up to 41°C (106°F) and lows dropping to around 16°C (61°F).

Data source: Temperature data for Lancaster generated using information from the Copernicus Climate Change Service.

August Precipitation in Lancaster

In Lancaster in August, the precipitation amount is 1 mm (0.1 in) during 0 days, indicating a very dry period.

August Precipitation Trends in Lancaster

The chart displays monthly precipitation patterns in Lancaster, 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 Lancaster, August typically receives around 1 mm (0.1 inches) of precipitation spread over approximately 0 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Lancaster

In Lancaster in August humidity is 39%. With an average temperature of 27°C (81°F), this humidity feels like a pleasant summer's day, making it ideal for exploring outdoor attractions and enjoying leisurely strolls without feeling overly sticky or uncomfortable.

August Average Humidity in Lancaster

This chart illustrates the average monthly humidity levels in Lancaster, 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 Lancaster is approximately 39%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Lancaster

In Lancaster 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 Lancaster.

Maximum UV Index Levels in Lancaster for August

The chart shows the monthly maximum UV Index (UVI) for Lancaster 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 Lancaster typically reaches 11, which falls under the extreme exposure category.

Data source: Lancaster 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 Lancaster Compares to Other Months

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

This table compares monthly weather conditions in Lancaster, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	41 mm (1.6 inches)	78%	moderate
February Weather	10°C (50°F)	31 mm (1.2 inches)	82%	high
March Weather	12°C (54°F)	38 mm (1.5 inches)	75%	very high
April Weather	16°C (62°F)	17 mm (0.7 inches)	68%	very high
May Weather	19°C (67°F)	7 mm (0.3 inches)	57%	extreme
June Weather	24°C (76°F)	1 mm (0.0 inches)	52%	extreme
July Weather	28°C (82°F)	2 mm (0.1 inches)	46%	extreme
August Weather	27°C (81°F)	1 mm (0.1 inches)	39%	extreme
September Weather	24°C (76°F)	2 mm (0.1 inches)	48%	very high
October Weather	18°C (65°F)	3 mm (0.1 inches)	59%	high
November Weather	14°C (57°F)	12 mm (0.5 inches)	72%	moderate
December Weather	9°C (48°F)	42 mm (1.7 inches)	76%	moderate