March Weather in Pomona, United States

Last updated: June 24, 2025

In March, the average temperature in Pomona, United States hovers around 9°C (48°F), with extremes ranging from a chilly -18°C (1°F) to a warm 30°C (87°F). Expect about 95 mm (3.7 in) of precipitation over 10 days, contributing to an average humidity level of 70%.

March Temperature in Pomona

In March in Pomona, the average temperature is 9°C (48°F), with maximums reaching 30°C (87°F) and minimums dropping as low as -18°C (1°F). Travelers should be prepared for a wide range of temperatures when visiting during this time.

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 9°C (48°F), with highs reaching up to 30°C (87°F) and lows dropping to around -18°C (1°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 95 mm (3.7 in) over the course of 10 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 95 mm (3.7 inches) of precipitation spread over approximately 10 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 Pomona

In Pomona in March, humidity is 70%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that can quickly sap your energy, making outdoor activities less enjoyable and requiring extra layers to stay warm and dry while traveling.

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 70%, 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	0°C (33°F)	53 mm (2.1 inches)	76%	moderate
February Weather	1°C (34°F)	35 mm (1.4 inches)	77%	high
March Weather	9°C (48°F)	95 mm (3.7 inches)	70%	high
April Weather	13°C (55°F)	94 mm (3.7 inches)	73%	very high
May Weather	19°C (66°F)	202 mm (7.9 inches)	82%	very high
June Weather	25°C (78°F)	111 mm (4.4 inches)	82%	extreme
July Weather	27°C (80°F)	105 mm (4.1 inches)	81%	extreme
August Weather	25°C (77°F)	121 mm (4.8 inches)	78%	very high
September Weather	22°C (72°F)	80 mm (3.1 inches)	71%	very high
October Weather	14°C (58°F)	118 mm (4.6 inches)	71%	high
November Weather	7°C (45°F)	38 mm (1.5 inches)	81%	moderate
December Weather	4°C (39°F)	32 mm (1.3 inches)	84%	moderate