March Weather in Saint Helen, United States

Last updated: June 24, 2025

In March, the average temperature in Saint Helen, United States hovers around 0°C (32°F). Expect chilly days, with minimums dipping to -22°C (-8°F) and maximums soaring to 21°C (70°F). Rainfall is moderate, with an average precipitation of 54 mm (2.1 in) over the course of 9 days. Additionally, the air carries a high humidity level of 87%, adding to the brisk atmosphere.

March Temperature in Saint Helen

In March in Saint Helen, the average temperature is 0°C (32°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -22°C (-8°F). It's advisable to pack layers and prepare for both warm days and cold nights when traveling during this time.

March Weather in Saint Helen: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Saint Helen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Helen, March typically has an average temperature of 0°C (32°F), with highs reaching up to 21°C (70°F) and lows dropping to around -22°C (-8°F).

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

March Precipitation in Saint Helen

In Saint Helen in March, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.

March Precipitation Trends in Saint Helen

The chart displays monthly precipitation patterns in Saint Helen, 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 Saint Helen, March typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 9 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 Saint Helen

In Saint Helen in March, humidity is 87%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that clings to your skin, making travel uncomfortable and cold, as each breath brings a heavy moisture that seeps into your clothes.

March Average Humidity in Saint Helen

This chart illustrates the average monthly humidity levels in Saint Helen, 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 Saint Helen is approximately 87%, 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 Saint Helen

In Saint Helen in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Saint Helen.

Maximum UV Index Levels in Saint Helen for March

The chart shows the monthly maximum UV Index (UVI) for Saint Helen 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 Saint Helen typically reaches 5, which falls under the moderate exposure category.

Data source: Saint Helen 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 Saint Helen Compares to Other Months

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

This table compares monthly weather conditions in Saint Helen, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	51 mm (2.0 inches)	92%	low
February Weather	-6°C (22°F)	51 mm (2.0 inches)	91%	moderate
March Weather	0°C (32°F)	54 mm (2.1 inches)	87%	moderate
April Weather	6°C (43°F)	94 mm (3.7 inches)	85%	very high
May Weather	13°C (56°F)	111 mm (4.4 inches)	79%	very high
June Weather	19°C (66°F)	114 mm (4.5 inches)	75%	very high
July Weather	22°C (72°F)	91 mm (3.6 inches)	75%	very high
August Weather	20°C (69°F)	89 mm (3.5 inches)	75%	very high
September Weather	16°C (61°F)	76 mm (3.0 inches)	79%	high
October Weather	10°C (49°F)	124 mm (4.9 inches)	85%	moderate
November Weather	2°C (35°F)	58 mm (2.3 inches)	88%	moderate
December Weather	-2°C (28°F)	62 mm (2.4 inches)	89%	low