March Weather in Barstow, United States

Last updated: June 24, 2025

In March, the average temperature in Barstow, United States hovers around 14°C (57°F), making it a comfortable time of year. However, be prepared for a range of temperatures, as the minimum can drop to -1°C (30°F) while the maximum can reach 31°C (89°F). During this month, expect 17 mm (0.7 in) of precipitation spread over about 3 days, contributing to an average humidity of 69%.

March Temperature in Barstow

In March in Barstow, the average temperature is 14°C (57°F). Maximum temperatures can reach 31°C (89°F), while the minimum can be as low as -1°C (30°F). It’s advisable to pack for a range of weather conditions when traveling during this time.

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

The chart illustrates March temperature patterns in Barstow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Barstow, March typically has an average temperature of 14°C (57°F), with highs reaching up to 31°C (89°F) and lows dropping to around -1°C (30°F).

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

March Precipitation in Barstow

In Barstow in March, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

March Precipitation Trends in Barstow

The chart displays monthly precipitation patterns in Barstow, 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 Barstow, March typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 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 Barstow

In Barstow in March, humidity is 69%. With an average temperature of 14°C (57°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities slightly uncomfortable but manageable for traveling, especially if you stay hydrated and take breaks in shaded areas.

March Average Humidity in Barstow

This chart illustrates the average monthly humidity levels in Barstow, 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 Barstow is approximately 69%, 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 Barstow

In Barstow 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 Barstow.

Maximum UV Index Levels in Barstow for March

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

Data source: Barstow 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 Barstow Compares to Other Months

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

This table compares monthly weather conditions in Barstow, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	22 mm (0.9 inches)	76%	moderate
February Weather	11°C (51°F)	13 mm (0.5 inches)	80%	high
March Weather	14°C (57°F)	17 mm (0.7 inches)	69%	very high
April Weather	18°C (65°F)	11 mm (0.4 inches)	57%	very high
May Weather	22°C (71°F)	3 mm (0.1 inches)	45%	extreme
June Weather	28°C (83°F)	1 mm (0.0 inches)	34%	extreme
July Weather	31°C (89°F)	3 mm (0.1 inches)	29%	extreme
August Weather	31°C (88°F)	1 mm (0.0 inches)	28%	extreme
September Weather	27°C (80°F)	1 mm (0.0 inches)	41%	very high
October Weather	19°C (67°F)	2 mm (0.1 inches)	54%	very high
November Weather	14°C (57°F)	6 mm (0.2 inches)	68%	moderate
December Weather	8°C (47°F)	19 mm (0.7 inches)	75%	moderate