March Weather in Tomball, United States

Last updated: June 24, 2025

The average temperature in Tomball, United States during March hovers around 18°C (65°F), with fluctuations ranging from a chilly -2°C (29°F) to a warm 31°C (89°F). Visitors can expect an average precipitation of 86 mm (3.4 in) spread over 12 days, paired with a relatively high average humidity of 76%.

March Temperature in Tomball

In March in Tomball, the average temperature is 18°C (65°F). The maximum can reach 31°C (89°F), and the minimum can be as low as -2°C (29°F). Be prepared for a wide range of temperatures during your travels, and pack accordingly!

March Weather in Tomball: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Tomball, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomball, March typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (89°F) and lows dropping to around -2°C (29°F).

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

March Precipitation in Tomball

In Tomball in March, the precipitation amount is 86 mm (3.4 in) over a span of 12 days.

March Precipitation Trends in Tomball

The chart displays monthly precipitation patterns in Tomball, 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 Tomball, March typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Tomball

In Tomball in March, humidity is 76%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making travel a little sticky but enjoyable, as long as you stay hydrated and take breaks in the shade.

March Average Humidity in Tomball

This chart illustrates the average monthly humidity levels in Tomball, 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 Tomball is approximately 76%, 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 Tomball

In Tomball 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 Tomball.

Maximum UV Index Levels in Tomball for March

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

Data source: Tomball 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 Tomball Compares to Other Months

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

This table compares monthly weather conditions in Tomball, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	91 mm (3.6 inches)	78%	moderate
February Weather	14°C (57°F)	103 mm (4.1 inches)	81%	very high
March Weather	18°C (65°F)	86 mm (3.4 inches)	76%	very high
April Weather	21°C (70°F)	90 mm (3.6 inches)	79%	extreme
May Weather	25°C (77°F)	192 mm (7.6 inches)	79%	extreme
June Weather	28°C (82°F)	160 mm (6.3 inches)	74%	extreme
July Weather	29°C (84°F)	123 mm (4.9 inches)	71%	extreme
August Weather	29°C (84°F)	168 mm (6.6 inches)	68%	extreme
September Weather	26°C (80°F)	166 mm (6.5 inches)	73%	very high
October Weather	22°C (72°F)	104 mm (4.1 inches)	75%	very high
November Weather	16°C (62°F)	73 mm (2.9 inches)	78%	high
December Weather	14°C (57°F)	111 mm (4.4 inches)	84%	moderate