May Weather in South Lancaster, United States

Last updated: June 24, 2025

In South Lancaster, United States, the average temperature in May is 14°C (58°F), offering a mild climate. However, temperatures can vary significantly, with a minimum of 1°C (34°F) and a maximum reaching up to 34°C (93°F). Be prepared for some rain, as the region experiences an average precipitation of 91 mm (3.6 in) over 12 days. Additionally, the average humidity sits at a comfortable 72%, ensuring a refreshing atmosphere throughout the month.

May Temperature in South Lancaster

In May, in South Lancaster, the average temperature is 14°C (58°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as 1°C (34°F). This climate makes it ideal for travelers seeking diverse weather experiences, so make sure to pack accordingly!

May Weather in South Lancaster: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in South Lancaster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Lancaster, May typically has an average temperature of 14°C (58°F), with highs reaching up to 34°C (93°F) and lows dropping to around 1°C (34°F).

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

May Precipitation in South Lancaster

In South Lancaster in May, the precipitation amount is 91 mm (3.6 in) over a period of 12 days.

May Precipitation Trends in South Lancaster

The chart displays monthly precipitation patterns in South Lancaster, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In South Lancaster, May typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in South Lancaster

In South Lancaster in May, humidity is 72%. With an average temperature of 14°C (58°F), this humidity feels like a damp blanket wrapping around you, making walking and exploring slightly uncomfortable and requiring frequent breaks for hydration.

May Average Humidity in South Lancaster

This chart illustrates the average monthly humidity levels in South Lancaster, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in South Lancaster is approximately 72%, offering insight into how humid the weather typically is during this month.

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

May UV Index in South Lancaster

In South Lancaster in May, 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 South Lancaster.

Maximum UV Index Levels in South Lancaster for May

The chart shows the monthly maximum UV Index (UVI) for South Lancaster in May, 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 May, the maximum UV index in South Lancaster typically reaches 9, which falls under the very high exposure category.

Data source: South Lancaster May 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 May Weather in South Lancaster Compares to Other Months

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

This table compares monthly weather conditions in South Lancaster, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	74 mm (2.9 inches)	86%	moderate
February Weather	-1°C (31°F)	90 mm (3.5 inches)	84%	moderate
March Weather	2°C (36°F)	87 mm (3.4 inches)	82%	high
April Weather	8°C (47°F)	132 mm (5.2 inches)	80%	very high
May Weather	14°C (58°F)	91 mm (3.6 inches)	72%	very high
June Weather	20°C (68°F)	93 mm (3.7 inches)	72%	very high
July Weather	23°C (73°F)	154 mm (6.1 inches)	67%	very high
August Weather	22°C (72°F)	99 mm (3.9 inches)	66%	very high
September Weather	18°C (65°F)	89 mm (3.5 inches)	71%	high
October Weather	12°C (54°F)	137 mm (5.4 inches)	78%	high
November Weather	5°C (41°F)	102 mm (4.0 inches)	84%	moderate
December Weather	0°C (32°F)	125 mm (4.9 inches)	81%	low