March Weather in Castle Hills, United States

Last updated: June 24, 2025

In March, the average temperature in Castle Hills, United States hovers around 18°C (65°F). Expect a wide range of temperatures, with minimums dipping to -3°C (27°F) and maximums peaking at 33°C (91°F). Throughout the month, 62 mm (2.5 in) of precipitation may fall over 9 days, while humidity levels typically remain high at 74%.

March Temperature in Castle Hills

In March in Castle Hills, the average temperature is 18°C (65°F). The maximum can reach 33°C (91°F), and the minimum can be as low as -3°C (27°F). Be prepared for a wide range of temperatures when planning your travels to Castle Hills during this month.

March Weather in Castle Hills: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Castle Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castle Hills, March typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (91°F) and lows dropping to around -3°C (27°F).

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

March Precipitation in Castle Hills

In Castle Hills in March, the precipitation amount is 62 mm (2.5 in) over a span of 9 days, indicating a relatively wet period.

March Precipitation Trends in Castle Hills

The chart displays monthly precipitation patterns in Castle Hills, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Castle Hills, March typically receives around 62 mm (2.5 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Castle Hills

In Castle Hills in March humidity is 74%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can make even short walks feel laborious, leading travelers to seek shade and refreshment more often.

March Average Humidity in Castle Hills

This chart illustrates the average monthly humidity levels in Castle Hills, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Castle Hills is approximately 74%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Castle Hills

In Castle Hills in March, 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 Castle Hills.

Maximum UV Index Levels in Castle Hills for March

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

Data source: Castle Hills March 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 March Weather in Castle Hills Compares to Other Months

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

This table compares monthly weather conditions in Castle Hills, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (53°F)	44 mm (1.7 inches)	79%	moderate
February Weather	13°C (55°F)	58 mm (2.3 inches)	79%	very high
March Weather	18°C (65°F)	62 mm (2.5 inches)	74%	very high
April Weather	21°C (70°F)	71 mm (2.8 inches)	76%	extreme
May Weather	25°C (77°F)	130 mm (5.1 inches)	81%	extreme
June Weather	28°C (83°F)	78 mm (3.1 inches)	76%	extreme
July Weather	29°C (85°F)	69 mm (2.7 inches)	66%	extreme
August Weather	30°C (86°F)	56 mm (2.2 inches)	58%	extreme
September Weather	27°C (80°F)	117 mm (4.6 inches)	65%	extreme
October Weather	22°C (72°F)	89 mm (3.5 inches)	74%	very high
November Weather	16°C (61°F)	46 mm (1.8 inches)	81%	high
December Weather	13°C (56°F)	57 mm (2.3 inches)	86%	moderate