March Weather in Pomona, United States

Last updated: June 24, 2025

In March, the average temperature in Pomona, United States hovers around 10°C (50°F). However, be prepared for a wide range; temperatures can dip as low as -14°C (8°F) or soar up to 30°C (86°F). During this month, precipitation averages 153 mm (6.0 in) over 13 days, while the average humidity stays high at 80%.

March Temperature in Pomona

In March in Pomona, the average temperature is 10°C (50°F). Maximums can reach 30°C (86°F), while minimums can plummet to as low as -14°C (8°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and chilly conditions.

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

The chart illustrates March temperature patterns in Pomona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pomona, March typically has an average temperature of 10°C (50°F), with highs reaching up to 30°C (86°F) and lows dropping to around -14°C (8°F).

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

March Precipitation in Pomona

In Pomona in March, the total precipitation amount is 153 mm (6.0 in) spread over 13 days.

March Precipitation Trends in Pomona

The chart displays monthly precipitation patterns in Pomona, 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 Pomona, March typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 13 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 Pomona

In Pomona in March, humidity is 80%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill enveloping you, making traveling somewhat uncomfortable as it seeps into your clothes and clings to your skin, leaving you longing for a cozy indoor refuge.

March Average Humidity in Pomona

This chart illustrates the average monthly humidity levels in Pomona, 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 Pomona is approximately 80%, 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 Pomona

In Pomona in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Pomona.

Maximum UV Index Levels in Pomona for March

The chart shows the monthly maximum UV Index (UVI) for Pomona 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 Pomona typically reaches 7, which falls under the high exposure category.

Data source: Pomona 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 Pomona Compares to Other Months

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

This table compares monthly weather conditions in Pomona, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	84 mm (3.3 inches)	83%	moderate
February Weather	4°C (39°F)	113 mm (4.4 inches)	81%	high
March Weather	10°C (50°F)	153 mm (6.0 inches)	80%	high
April Weather	13°C (56°F)	163 mm (6.4 inches)	80%	very high
May Weather	19°C (67°F)	187 mm (7.4 inches)	83%	extreme
June Weather	24°C (75°F)	79 mm (3.1 inches)	83%	extreme
July Weather	26°C (79°F)	77 mm (3.0 inches)	76%	extreme
August Weather	25°C (77°F)	109 mm (4.3 inches)	69%	very high
September Weather	23°C (73°F)	50 mm (2.0 inches)	68%	very high
October Weather	15°C (60°F)	127 mm (5.0 inches)	72%	high
November Weather	8°C (46°F)	76 mm (3.0 inches)	83%	moderate
December Weather	5°C (42°F)	77 mm (3.0 inches)	86%	moderate