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March Weather in Riverside, United States

Last updated: June 24, 2025

In Riverside, United States, the average temperature in March hovers around 6°C (43°F). Expect a diverse range, with minimums dipping as low as -14°C (7°F) and maximums reaching up to 24°C (76°F). During this month, you'll encounter 111 mm (4.4 in) of precipitation across 13 days. Don't forget your umbrella, as the air will feel quite humid, with an average humidity of 87%.

March Temperature in Riverside

In March in Riverside, the average temperature is 6°C (43°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop as low as -14°C (7°F). Be prepared for a wide range of weather conditions when traveling to Riverside during this time.

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

The chart illustrates March temperature patterns in Riverside, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riverside, March typically has an average temperature of 6°C (43°F), with highs reaching up to 24°C (76°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec313543526472767469584237
Data source: Temperature data for Riverside generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Riverside

In Riverside in March, the precipitation amount reaches 111 mm (4.4 in) over the course of 13 days.

March Precipitation Trends in Riverside

The chart displays monthly precipitation patterns in Riverside, 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 Riverside, March typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec771051111051221271068188949597
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Riverside

In Riverside in March, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.

March Average Humidity in Riverside

This chart illustrates the average monthly humidity levels in Riverside, 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 Riverside is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Riverside

In Riverside in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Riverside, you can refer to this Hourly UV Index in Riverside.

Maximum UV Index Levels in Riverside for March

The chart shows the monthly maximum UV Index (UVI) for Riverside 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 Riverside typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Riverside 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 Riverside Compares to Other Months

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

This table compares monthly weather conditions in Riverside, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)77 mm (3.0 inches)88%moderate
February Weather1°C (35°F)105 mm (4.1 inches)88%moderate
March Weather6°C (43°F)111 mm (4.4 inches)87%high
April Weather11°C (53°F)105 mm (4.1 inches)85%very high
May Weather18°C (65°F)122 mm (4.8 inches)81%very high
June Weather22°C (73°F)127 mm (5.0 inches)82%very high
July Weather25°C (77°F)106 mm (4.2 inches)81%very high
August Weather23°C (74°F)81 mm (3.2 inches)73%very high
September Weather21°C (70°F)88 mm (3.5 inches)73%very high
October Weather14°C (58°F)94 mm (3.7 inches)78%high
November Weather6°C (42°F)94 mm (3.7 inches)89%moderate
December Weather3°C (37°F)97 mm (3.8 inches)87%moderate

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