May Weather in Keller, United States

Last updated: June 24, 2025

In May, the average temperature in Keller, United States is a pleasant 24°C (75°F). However, be prepared for temperature fluctuations, as it can dip to a cool 6°C (43°F) at the lowest and soar up to a scorching 36°C (97°F) at its peak. During this month, expect approximately 150 mm (5.9 in) of precipitation spread over 12 days, contributing to an average humidity level of 81%.

May Temperature in Keller

In May in Keller, the average temperature is a comfortable 24°C (75°F). The maximum can reach a scorching 36°C (97°F), while the minimum can drop to a chilly 6°C (43°F). Overall, it’s advisable to pack for both warm and cool weather if you plan to travel during this month.

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

The chart illustrates May temperature patterns in Keller, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keller, May typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 6°C (43°F).

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

May Precipitation in Keller

In Keller in May, the total precipitation amount is 150 mm (5.9 in) over the course of 12 days.

May Precipitation Trends in Keller

The chart displays monthly precipitation patterns in Keller, 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 Keller, May typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 12 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 Keller

In Keller in May humidity is 81%. With an average temperature of 24°C (75°F), this humidity feels like a warm, thick blanket enveloping you, making traveling a bit sticky and sweaty, yet still inviting for those who enjoy the rich, tropical atmosphere.

May Average Humidity in Keller

This chart illustrates the average monthly humidity levels in Keller, 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 Keller is approximately 81%, 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 Keller

In Keller 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 Keller.

Maximum UV Index Levels in Keller for May

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

Data source: Keller 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 Keller Compares to Other Months

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

This table compares monthly weather conditions in Keller, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	52 mm (2.0 inches)	80%	moderate
February Weather	9°C (49°F)	89 mm (3.5 inches)	79%	high
March Weather	16°C (60°F)	100 mm (3.9 inches)	78%	very high
April Weather	18°C (65°F)	104 mm (4.1 inches)	78%	very high
May Weather	24°C (75°F)	150 mm (5.9 inches)	81%	extreme
June Weather	27°C (82°F)	88 mm (3.5 inches)	78%	extreme
July Weather	30°C (85°F)	40 mm (1.6 inches)	73%	extreme
August Weather	29°C (85°F)	87 mm (3.4 inches)	66%	extreme
September Weather	26°C (79°F)	79 mm (3.1 inches)	65%	very high
October Weather	20°C (68°F)	133 mm (5.2 inches)	72%	very high
November Weather	13°C (56°F)	54 mm (2.1 inches)	82%	high
December Weather	11°C (51°F)	52 mm (2.0 inches)	87%	moderate