May Weather in Hallettsville, United States

Last updated: June 24, 2025

In May, the average temperature in Hallettsville, United States hovers around 26°C (78°F), offering a pleasantly warm climate. However, you might experience temperature swings, with a minimum of 11°C (51°F) and a maximum reaching up to 37°C (99°F). During this month, expect 134 mm (5.3 in) of precipitation over approximately 13 days, contributing to a relatively high average humidity of 79%. Whether you’re looking for sun or a refreshing rain, May in Hallettsville has it all!

May Temperature in Hallettsville

In May in Hallettsville, the average temperature is 26°C (78°F). Maximum temperatures can reach up to 37°C (99°F), while minimums can drop as low as 11°C (51°F). This moderate climate makes it an ideal destination for travelers looking to enjoy a variety of outdoor activities.

May Weather in Hallettsville: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Hallettsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hallettsville, May typically has an average temperature of 26°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 11°C (51°F).

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

May Precipitation in Hallettsville

In Hallettsville in May, the precipitation amount is 134 mm (5.3 in) recorded over the course of 13 days.

May Precipitation Trends in Hallettsville

The chart displays monthly precipitation patterns in Hallettsville, 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 Hallettsville, May typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 13 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Hallettsville

In Hallettsville in May, humidity is 79%. With an average temperature of 26°C (78°F), this humidity feels like a tropical blanket enveloping you, making outdoor activities less comfortable for traveling.

May Average Humidity in Hallettsville

This chart illustrates the average monthly humidity levels in Hallettsville, 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 Hallettsville is approximately 79%, 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 Hallettsville

In Hallettsville in May, 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 Hallettsville.

Maximum UV Index Levels in Hallettsville for May

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

Data source: Hallettsville 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 Hallettsville Compares to Other Months

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

This table compares monthly weather conditions in Hallettsville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	60 mm (2.4 inches)	78%	moderate
February Weather	14°C (57°F)	70 mm (2.7 inches)	81%	very high
March Weather	19°C (66°F)	69 mm (2.7 inches)	76%	very high
April Weather	21°C (71°F)	101 mm (4.0 inches)	79%	extreme
May Weather	26°C (78°F)	134 mm (5.3 inches)	79%	extreme
June Weather	28°C (83°F)	105 mm (4.1 inches)	74%	extreme
July Weather	29°C (85°F)	93 mm (3.6 inches)	71%	extreme
August Weather	30°C (86°F)	116 mm (4.6 inches)	68%	extreme
September Weather	27°C (81°F)	110 mm (4.3 inches)	73%	very high
October Weather	22°C (73°F)	75 mm (3.0 inches)	75%	very high
November Weather	17°C (63°F)	66 mm (2.6 inches)	78%	high
December Weather	14°C (58°F)	76 mm (3.0 inches)	84%	moderate