March Weather in Rainier, United States

Last updated: June 24, 2025

In March, the average temperature in Rainier, United States hovers around 7°C (45°F). Temperatures can range from a chilly -3°C (26°F) to a pleasant 23°C (73°F). Expect a fairly wet month with an average precipitation of 145 mm (5.7 in) spread over 17 days, alongside a high average humidity of 85%.

March Temperature in Rainier

In March in Rainier, the average temperature is 7°C (45°F). Maximums can reach 23°C (73°F), and minimums can be as low as -3°C (26°F). It’s advisable to pack layers to comfortably enjoy your travels during this varied weather.

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

The chart illustrates March temperature patterns in Rainier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rainier, March typically has an average temperature of 7°C (45°F), with highs reaching up to 23°C (73°F) and lows dropping to around -3°C (26°F).

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

March Precipitation in Rainier

In Rainier in March, the total precipitation amount is 145 mm (5.7 in) occurring over a span of 17 days.

March Precipitation Trends in Rainier

The chart displays monthly precipitation patterns in Rainier, 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 Rainier, March typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 17 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 Rainier

In Rainier in March, humidity is 85%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

March Average Humidity in Rainier

This chart illustrates the average monthly humidity levels in Rainier, 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 Rainier is approximately 85%, 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 Rainier

In Rainier 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 Rainier.

Maximum UV Index Levels in Rainier for March

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

Data source: Rainier 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 Rainier Compares to Other Months

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

This table compares monthly weather conditions in Rainier, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	183 mm (7.2 inches)	85%	low
February Weather	4°C (40°F)	166 mm (6.5 inches)	84%	moderate
March Weather	7°C (45°F)	145 mm (5.7 inches)	85%	moderate
April Weather	10°C (50°F)	119 mm (4.7 inches)	83%	high
May Weather	13°C (56°F)	71 mm (2.8 inches)	83%	very high
June Weather	16°C (61°F)	59 mm (2.3 inches)	83%	very high
July Weather	18°C (65°F)	9 mm (0.4 inches)	82%	very high
August Weather	19°C (66°F)	9 mm (0.4 inches)	74%	very high
September Weather	16°C (62°F)	79 mm (3.1 inches)	71%	high
October Weather	11°C (51°F)	117 mm (4.6 inches)	81%	moderate
November Weather	7°C (45°F)	172 mm (6.8 inches)	87%	moderate
December Weather	5°C (40°F)	192 mm (7.6 inches)	87%	low